FBHF*4 Welcome to TNT Antivirus! ; Press [Enter] to get information about the Help function. ? Or choose one of the following topics to learn more about it: Using TNTAV Menu|Taggings Menu|Logfile Menu|Check Menu|Options Menu|Drive Menu|Window Virusreference or press [ESC] now, to exit help. The help-function TNTAV offers a very easy-to-use Help function, that can be activated at any time. d To activate the Help function, simply press [F1]. A window containing the Help text will appear. The Help function is context-sensitive, i.e., wherever the program is focused -- if an error has appeared or if a virus has been found, etc. -- the appropriate Help text will appear. So the Help function actively supports your work. If the text does not fit into the Help window completely, you can move the area shown with the [ ],[<-] and [->] keys (or you can use the mouse to move the sliders of the scroll bars). To scroll larger areas at once, use the [PgUp] and [PgDn] keys. Some words appear in another color within the text (word or wort, for example). This indicates there is more information available for that specific topic. You can highlight one of these words with [Tab] or with [Shift]&[Tab]. If you press [Enter], you'll "go to" the highlighted topic. This is all you need to know about working with the Help function. Now press [Tab] until ->using TNTAV is highlighted and press [ENTER]. You have selected the first word. Now press [ENTER] to get back to the first explanation. You have selected the second word. Now press [ENTER] to get back to the first explanation. Not enough memory Sometimes there may be not enough free memory, and there is no guarantee that all files can be displayed in the user interface. Memory gets low if... { (1) there is less than 512kB installed or (2) TSR-programs are active or (3) the program has been started from a shell Check the above-mentioned circumstances to try to correct the problem and start TNTAV again. If this is not possible, you will have to use the batch mode instead. since the batch mode needs much less memory than the user interface. Version expired Check to see if the version of TNTAV that you are currently using is older than two months (the difference between the program date and the system date is more than 60 days). If so, there is a risk, because new viruses may not be detected. Be sure you are using the current release of the program. O If you want to disable the warning, use the command line-parameter /NOEXPIRE. Large Logfile The Logfile has grown to the number of lines indicated in the dialogue. You should delete the Logfile from time to time, since it occupies space on your hard disk. Virus found... A virus has been found. You should restart the system now with a clean disk (e.g. the emergency disk that has been created by the Install program). Then test your hard disk and your floppies with TNTAV again. The title "Filetags" You will find two function under "Filetags." The first function allows you to remove all tags at once, without going through all directories and files manually to untag them. D The other function allows you to save the tags to the hard disk. This operation is accomplished automatically when you leave the program, so generally it is not necessary to actively save the tags. You can be sure that all tags have been saved after you have used this function, even if the power fails in the next second. ->back... Information about File Tags You can tag single files in the file window as well as complete directories in the directory window. Tagged directories or files are identified by a point at their left side. Tagging has only one purpose: It is possible to test ONLY the tagged directories/files and leave the other ones untested. To tag the currently highlighted directory or file, simply press [Enter] (the directory- or the file window has to be focused first). Alternatively, you can click with the right mouse button onto the desired directory/file. S Taggings will stay where they are, even if the program is left and started again. # The directory tags and the file tags do not depend on each other. If you tag some files in a directory, and then tag the complete directory afterwards, all files in that directory will be tagged. If you "untag" the directory, only the previously (separately) tagged files will stay tagged. k If a complete directory is tagged, it is not possible to tag or untag individual files in that directory. Tags have to be stored in memory. If you have many tagged files, less memory is available for storage on the drive. This can be a problem if you have a very large drive and many tagged files. ->back... The function "Check" Select the topic you want to get more indepth information about: Checking general or... Menuitem... Current Directories Only tagged files Bootsector Complete drive Checking In general... If you test a drive, TNTAV will search for viruses in the files on that drive. You can choose another drive with the menu function "drive." g By default, only executable files will be examined. However, it is possible to search in all files. } TNTAV will not check the boot areas, only the files. If you want the boot areas checked, use the function Check|Bootsector. Memory will be searched automatically at the start of the program for active viruses. You will receive a message, if a virus is found in the memory. You can start checking through the menu using the space bar. The testing of a particular file or a directory(-tree) depends on whether the file window or the directory window has been focused when the space bar is pressed. O You can also double click onto a file or onto a directory to start the test. < More information about the options for checking... or... ->back Options for checking This dialogue appears when you have activated the Check function. 8 The following are the possible parameters for testing: y 1 "Directory" or "File": This option depends on the position of the cursor at the time you activate the check function. V 2 "Logfile": This option determines if the results should be written into a logfile. 3 "Prompt if Virus": If a dialogue is displayed when a virus is found, the dialogue that appears gives a choice of how to react to the detection of the virus: For example, you can order TNTAV to remove the virus, or you can get an explanation of it, etc. If you turn the "Prompt" off, the dialogue will not appear. In either case, a small window displaying the name of the virus(es) will be shown on the screen, if a virus is found. 4 "Datafiles": This selection is designed to be used whether all files or only the executable files are be tested. Executable files are not only .COM and .EXE files, but also files with the extensions *.OVR, *.OVL, .APP and so on. Normally, it is alright to test just the executable files. However, if you turn on "All files," TNTAV will check every file in the area being checked, regardless of its extension. Selecting this option slows down scanning a little. > 5 "Subdirectories": If subdirectories should be tested, too. ->back Check Current File The current file will be shown highlighted in the file window. You can change the current file with the cursor keys or by clicking with the mouse. w You can test the current file with the [Space]-key (make sure the file window is focused) or with Check|Current File. ->back Checking directories You can test multiple directories only if they are located in another directory that you wish to test. If this is not the case, you will have to test the directories separately. I 1 Focus the directory window (with [Tab]), if it is not already focused 2 Select the directory that includes all sub-directories you wish tested (instead of "navigating" to the directory you can also enter the name of the directory directly). 7 3 Press the space bar or choose Checking|Directories. or 1,2,3 Double-click onto the directory 4 A dialogue appears. Choose the options (explanation of the dialog) and select . ->back Checking the highlighted file If you want to test a specific file, you have to highlight it first. You can change the highlighted file with the cursor keys (to perform a function in the file window, it has to be focused -- which means it has a double-frame. To focus it, press [Tab] until the window shows a double-frame). ' Choose Check|Current file afterwards. > As an other alternative, you can double-click onto the file. ->back Checking the boot areas This functions allows you to check the boot areas. If you choose Check|Bootsector, TNTAV will test the boot areas and display the result of the test. You then have the opportunity to remove the virus or look it up in the database, if an infection is found. ->back Checking the complete drive To test a complete drive (a floppy, for example) you have to do following: 1 Select the drive that you wish to test. Use "Drive" ([Alt]&[D]) to focus the drive bar (if the drive is not the one already displayed). Enter the letter of the drive or 1 Click onto the letter in the drive bar _ 2 After the structure of the drive has been read in, its root directory will be highlighted. 7 3 Press the space bar or choose Checking|Directories. or 1,2,3 Double-click onto the root directory (this is the directory in the first line of the directory window) 4 A dialogue appears. Choose the options you want (->explanation of the options...). Since you want to test all directories, set "Sub-directories" to "Yes". Select . TNTAV will search the directory for viruses. After testing is complete, you will get data indicating the results. The dialogue showing the result will appear in red, if viruses have been found. @ 5 Choose Check|Bootsector to test the boot areas of the drive. ->back The function "logfile" The logfile is the file where the results of testing will be saved. The file is named "TNTAV.LOG" and will be created in the currently- active directory (not in the TNTAV directory, if you are not in that directory). The menu functions under "Logfile" can be selected only if a logfile exists. If you turn the option "Logfile" in the dialogue that appears before the start of checking to "on," the logfile will be created. A window showing the contents of the logfile will appear, if you choose Logfile|Show. You can move and size, scroll the contents and close it as usual. w If you choose Logfile|Print, only the text in the logfile itself will be transferred to the printer. TNTAV will not add any control codes, so you have to setup your printer for the correct font (Courier 12 fits best), page-length and so on. No form feeds will be added (you cannot print the logfile with this function on a postscript printer without an additional program). x If TNTAV does not recognize that your printer is out of paper, the paper-out sensor on the printer may not be enabled. If you choose the function Logfile|Delete, the file TNTAV.LOG will be deleted. The next time you turn on the logfile, a new file will be created and the new information will be at the beginning of the new file. ->back... Dialogue to print the logfile Choose the number of the parallel interface connected to the printer. Select then to print (or select to abort the function). w If you choose Logfile|Print, only the text in the logfile itself will be transferred to the printer. TNTAV will not add any control codes, so you have to setup your printer for the correct font (Courier 12 fits best), page-length and so on. No form feeds will be added (you cannot print the logfile with this function on a postscript printer without an additional program). x If TNTAV does not recognize that your printer is out of paper, the paper-out sensor on the printer may not be enabled. ->back... Problem while printing An error has occurred while printing the logfile. Correct the problem and choose to retry printing, or select to stop printing. ->back... Deleting the logfile All the protocols of the previous tests will be lost if you delete the logfile. If you activate "logfile" for testing, a new logfile will be created. ->back... The Options You can choose different setting for the user interface and save them. If you saved them, they will be restored automatically the next time TNTAV is activated. Options|Screenlines Allows you to change the number of lines that are displayed on screen. This option can be used only with screen cards that support this feature. Options|Sound Turns on and off the sound effects. These effects are not only the sounds made when a window or a dialogue appears, but also the alarm sound signaling that a virus has been found. Options|Colors This changes the colors in which the user interface is displayed. The color option can be activated on color systems only. Options|Save This function will save the settings (colors & sound) to disk. When you save the options, the positions of the windows will be saved, as well. ->back... Windows You can change the appearance of the working area. You can move the windows around and resize them. H The changes can be saved permanently with the menu topic Options|Save. ->back... Virus Found A virus has been found. You have different choices what to do now: V 1 You can get an explanation of the virus. Activate the -button to do this. $ 2 You can try to remove the virus. U 3 You can remove this virus and all other viruses that may be found in other files. b 4 You can rename the infected file. This will guarantee that the file will not execute any more. You can also ignore the alert and continue searching, or you can stop testing completely. In both cases the virus will NOT be removed. ->back... Virus found A virus has been found. You have different choices what to do now: V 1 You can get an explanation of the virus. Activate the -button to do this. = 2 You can continue searching. Choose to do this. 8 3 You can abort searching. Choose to do this. G Please remember that the virus is still active and should be removed. ->back... If you need an explanation of a virus, you can choose . TNTAV will search for the name in its internal database and display the appropriate information (if the database contains something about the specific virus). T If you leave the database (with [Esc]), you will be back in the "prompt" dialogue. ->back TNTAV will try to remove the virus, if you choose . In most cases, the file will be clean afterwards and can be used as before the infection. It is not always possible to remove a virus. Some viruses destroy data in the program. These parts are lost and the program cannot be used any more. ->back If you choose to an infected file, the extension of the file will be changed to ".VIR" For example: F COMMAND.COM -> COMMAND.VIR FORMAT.EXE -> FORMAT.VIR If a file with the new name already exists, the extension will be VI, where digit is 0 to 9. ->back Virus found in memory A virus has been found in memory. There is no danger if the virus "is of no harm"/ "has been deactivated." But you should test all hard disks/ partitions/ diskettes to make sure that no files are infected! If the virus could not be deactivated, boot from a clean disk (the emergency disk) now! You'll find further information in the manual. No bootvirus found No bootvirus have been found on the current drive. BUT: This test does not tell you if there are any viruses hiding in files on the drive. You have to run the normal tests, too! { Press [Enter] now, if you need an explanation of how to test the complete drive, or press [Esc] to close the help window. Bootvirus found A bootvirus was found in the boot areas of the current drive. You can now... 1 Get an explanation of the virus (if it is in the database) 2 Try to remove the virus 3 Cancel the operation WITHOUT removing the virus ? ATTENTION: Make a backup before you try to remove the virus! Repair bootsektor: Result: If you get an "OK" message, the virus has been removed and there is no danger anymore. H Some viruses cannot be removed. The dialogue will tell you the reason. Repair bootsector It is possible that in some rare cases (e.g. when a bootvirus has done some tricky things with the partition data) the drive can no longer be accessed after the repair. In this case, the drive has to be reformatted. Therefore, this function is critical. > You should use this function only if you have made a backup! If you have not made a backup, the function now and make a backup (e.g. with MS-DOS BACKUP). Try to repair the bootsector after the backup is done. Checking Done - Results This dialogue shows the results of testing. It will appear in RED if viruses have been found. 2 The dialogue displays the following information: 1 The name of the tested directory (or the file, if only one file has been tested). If more than one directory has been tested, this is the name of the top-most directory, the one that contains the other sub-directories. 2 The number of processed files. This is not the same as (3). Normally only the executable files are checked for viruses, because viruses cannot be activated in data files. This is the number of files that have been looked at. f 3 This is the number of files tested or the number of executable files that could contains viruses. 4 This is the number of infected files. If you find a value different from zero here, your drive is infected. In this case, the dialogue will be displayed in red to indicate this information to the user. The names of the viruses that have been found will be displayed in a separate window displayed "behind" the dialogue (you will see it if you close the dialogue). If viruses have been found, this dialogue will also show the number of files that have been repaired. ( 5 The time used for the test function. 6 The number of files that have been processed per minute. If testing took less than a minute, this value will be calculated on the basis on 1/100 seconds. ->back... Checksums/Filesizes wrong Tagged files will not only be checked for viruses, but also for their filesizes and checksums. A different filesize/checksum could indicate an (up to now) unknown virus. Some programs change their files themselves (e.g. to store setup-information), so it is possible that the checksum/filesize- values have changed without a virus. w Use the "try-mode" to find out if there are any similarities between the suspicious file and other files on the disk. Some files could not be accessed Some files could not be accessed and therefore could not tested. The reasons could be: 1 the files have been locked out by the network software. Some system files in a network cannot be accessed, even if the user is the supervisor. f 2 the files are in use by another program; for example, in a multi-tasking environment like windows. Stop testing Choose to abort the function or to continue testing. ->back... Logfile does not exist The logfile does not exist. Either this drive has not been tested yet, or the option "logfile" was not activated during a previous test. Another reason for the "Logfile does not exist" message might be that you have chosen a new name for the logfile with the /REPORT_ option. ->back... Leaving TNTAV Select to end the program. In this case you will return to the point where you started TNTAV (either DOS or a shell). ->back... Using TNTAV The user interface of TNTAV has a SAA-like concept. The interface offers an ease of use and can be operated intuitively. Most of the functions can be reached directly through a combination of [Alt] and a letter (see Functions keys). 7 The interface is separated into four different areas: ? The menu The drive-bar The work-area The help-line Not enough memory There is not enough memory to add further files/directories. Please start TNTAV directly from DOS and remove all TSR programs that are not absolutely necessary. Move/Resize You can move and resize windows via the keyboard with this function, although it easier with a mouse. The [ ],[<-] and [->] keys can be used to move the currently- focused window around in the working area. Press one of these keys together with [Shift], and you'll change the size of the window. q Press [Enter] to leave the window in the new size/position, or press [Esc] to restore it to its original state. ->back Close window You can select this function only if the currently focused window can be closed. The directory window and the file window can, for example, not be closed. Windows that can be closed are the virus-alert window and the log window. Closing a window does not affect its contents. Selecting another drive This function allows you to select another drive to test. After you have selected "drive," you can choose another drive by entering the corresponding letter. You can also select the letter with the [->] and [<-] keys or by clicking it (in the drive-bar) with a mouse. If you have chosen a different drive, all file tags (if there are some) will be saved to the current drive before switching to the new one. r The directory of the new drive will be scanned, and the file window and directory window will show the new data. ->back... The menu In the pull-down menu of TNTAV, all functions are ordered under a common title. For example, all functions that have to do with testing are arranged under the title "Check." You can focus the menu by pressing [F10]. Once the menu is focused, all keyboard-entries affect the menu. You will notice that after pressing [F10] one of the titles becomes highlighted. You can change the title that is highlighted with the [<-] and [->] keys. If you press [Enter], a menu will pull down under the currently highlighted title. It contains all functions grouped under the topic shown in the title. You can move the highlight in this list with the [ ] and [ ] keys. Some of the characters in the menu are shown in another color. These are the hot keys. You can use them to access an item faster than moving to it with the arrow keys. Simply press the hot key, if the menu is focused, to access an item. ->back Using the mouse To make a selection via the mouse, point to the desired item and press the left mouse button. Using the mouse is the most comfortable way of operating the program. " ->back Functions Using the cursor-keys After you have focused the menu with [F10], you can navigate through the topics with the cursor keys. Pressing [Enter] will start a function, pressing [Esc] will close the current pull-down or, if none is open, "unfocus" the menu. " ->back Functions Using hot keys The functions in the menu can be accessed via hot keys. The hot keys are shown in a different color in every menu item. To select a specific item, simply press the [Alt]-key together with that item's hot key. You can, for example, activate the drive-bar with [Alt] & [D]. " ->back Functions The work area The work area is the part of the screen where windows and dialogues are placed. Normally, it will contain the directory and the file window (you cannot remove them). Other windows may be displayed, as well. ->back Helpline The last line of the screen shows the hot keys for some of the most-used functions. You can activate these functions by clicking onto the item in the help line or by entering the hot key. ->back Functions of the keys The keyboard functions are similar to the SAA-standard, with some differences. 4 Key Function ------------------------------------------------------------------- [F1] Help [F5] zoom focused window [Ctrl]&[F5] move focused window [F10] focus the menu [Alt]&[D] select an other drive [Alt]&[X] exit the program [Tab] focus the next window or highlight the next topic (in dialogues, in help) [Shift]&[Tab] like [Tab], but backwards [Enter] tag files/directories or choose the default-button [Spacebar] start checking or toggle an option in a dialogue [Pos1] Highlight the first directory/file that is shown in the current window area. In the menu, the first title will be highlighted. [End] Move the cursor to the last entry in the currently- visible area of a window. In the menu, the cursor will be located in the last entry. [Alt]& ... Every function the menu has a hot key. You can directly access these function if you press the hot key (that is, the letter that is shown in another color) together with [Alt]. ->back Virus found TNTAV has found one or more viruses. Their names are being displayed in the info window in the middle of the screen (you can close this window with [Esc]). u You can use the function TNTAV|Explain virus to get more information about the virus(es) that has(have) been found. P The manual contains in-depth information on how to react to a virus infection. Other Antivirus Software Active TNTAV has found another antivirus program to be active, a situation that will probably slow down the checking activity considerably. There is no guarantee that the search and remove functions will work correctly while this program is in memory. Q You should leave TNTAV now, remove the other software, then start TNTAV again. Sorry! There are no entries in the database for this virus. B If you need an explanation urgently, please contact our hotline. 2 Continue with Virusreference... or go ->back... (You can close this window with [Esc]). Virusreference This table contains the most important viruses only. If you cannot find the name of the virus you are looking for, please use the function TNTAV|Explain virus which finds all names in the database. h Index (first letter of virus-names) 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1-IN-8 100 YEARS VIRUS 1008 1012 27 1014 1022 1024 1024 PRINT SCREEN 1024 SBC 1024-B 1024PSCR 1028 1030 1039 1049 1063 1067 1077 109 1130 1168 1210 1226 1241 1244 1253 1260 1280 1308 1374 1376 1381 1385 1392 1415 144 1452 1514 1530 1536 1539 1554 1559 1575 1577 1591 1600 1605 1605-B 163 VIRUS 1661 1677 1701 1701 MUTATION 1704 1704 FORMAT 1704-B 1720 17690 1808 1813 1835 1840 1876 191 1917 1961 1963 1963 OVERWRITE 1971 1991 BOOT 1992 1992B 1993 200 2080 2086 2100 2131 2144 217 233 2480 2559 2560 2576 262 2623 268-PLUS 2930 3066 310 333 334 337 3445 3445-STEALTH 3551 3555 370-B 382 382 RECOVERY RECOVERY.1 3880 394 4-A 4-B 403 404 405 405-EST 408 4096 413 417 437 440 453 4711 483 4870 4870 OVERWRITING 492 500 505 509 512 VIRUS 512-A 5120 529 537 540 541 542 555 560 560-B 572 5792 5856 600 621 623 637 642 646 648 656 66A 691 699 702 709 712 765 777 7808 7TH SON 805 812 8290 834 855 867 880 900 903 905 909090H 914 923 944 948 981 ACDC ADA ADOLPH ADVENT ADVENT-B AFRICAN 109 AH AIDS AIDS II AIRCOP AKUKU ALA ALABAMA ALAMEDA ALBANIA ALBANIA-429 ALBANIA-506 ALBANIA-575 ALBANIA-606 ALBANIAN ALFA AMBULANCE AMBULANCE CAR AMILIA AMOEBA VIRUS AMSTRAD ANIMUS ANIMUS-7360 ANT ANTHRAX ANTI-D ANTI-PASCAL ANTI-PASCAL 400 ANTI-PASCAL VIRUANTI-PASCAL II ANTI-TEL ANTICAD ANTICAD 1 ANTICAD 2 ANTICAD 3 ANTICAD 4 ANTICAD 5 ANTICHRIST ANTIMON ANTISCAN ANTO AP-400 AP-605 APOCALYPSE II APRIL 1ST APRIL 1ST-B ARAB ARAB STAR ARF ARGENTINA ARGENTINA 1.0 ARMA ARMAGEDON ARMAGEDON-1077 ASHAR ASP-472 AT144 ATHENS ATTACK ATTACK-1501 ATTENTION! AUGUST 16TH AUSTRALIAN AUSTRALIAN 403 AUSTRIAN AZUSA BACKTIME BAD BOY BAD 2 BAD BRAIN BADGUY BADGUY 2 BADSEC BANANA BANDIT BARCELONA BASIC VIRUS BB BC BEAST BEAST-N-BLACK BEBE BEIJING BEST WISH BEST WISHES BETA BETTER WORLD BEWARE BFD BIG JOKE BIRDIE BLACK AVENGER BLACK BOX BLACK MONDAY BLACK WINDOW BLACK WIZARD BLACKJACK BLAZE BLINKER BLINKER-496 BLJEC BLJEC3 BLJEC3B BLOOD BLOOD LUST BLOOD2 BLOODY! BLOOMINGTON BOB BODERLINE BOMB BOMBER BOOJUM BOOT BORODA BOUNCING BALL BOUNCING DOT BOW BOYS BOYS 2 BRAIN BRAIN SLAYER BRAINY BRAZILIAN BUG BROTHERS BROTHERS ARM BULGARIAN 123 BUPT BURGER BURGHOFER BUSTED C-23963 C-605 CADKILL CANNABIS CANNABIS 2 CANNABIS 3 CANSU CARA CARFIELD CARIOCA CASCADE CASCADE-1621 CASCADE-1706 CASINO CASINO-B CASINO-C CASPER CATMAN CAZ CAZ-1159 CB-1530 CD CENTURY VIRUS CHAMELEON CHANG CHAOS CHASER CHECKSUM CHECKSUM 1.00 CHEEBA CHEMIST CHEMMY CHINESE FISH CHINESE INVADER CHOINKA CHRISTMAS JAPAN CHRISTMAS TREE CHRISTMAS VIOLATOR CHV 2.1 CIA CIA-2 CINDERELLA CIUDADO CKSUM CLIPPER CLONE CLOSE CMDR BOMBER CODE ZERO COLUMBUS DAY COM COM 351 COM2CON COMPANION VIRUS COMPUTER OGRE COOKIE COOKIE-7360 COP-MPL COPYRIGHT COSSIGA COVER GIRL CRACKER JACK CRACKPOT CRAZY EDDIE CRAZY IMP CREEPER CREEPING DEATH CREEPING TORMENTOR CREW-2480 CRF CRIMINAL CSL CUBAN CURSY CVIRUS D-TINY DAD DADA DAMAGE DAMAGE-B DAME DARK AVENGER DARK AVENGER 1028 DARK AVENGER 1801 DARK AVENGER 2 DARK AVENGER 4 DARK AVENGER II DARK AVENGER III DARK AVENGER-C DARK AVENGER-D DARK AVENGER.1E DARK LORD DARK LORD-B DARTH VADER DARTH-1 DARTH-2 DARTH-3 DARTH-4 DARTH-5 DATA MOLESTER DATACRIME DATACRIME II DATACRIME IIB DATACRIME-B DATALOCK DATALOCK 1.00 DATALOCK-1043 DATARAPE-10 DATARAPE-11 DAVID-1173 DAVIS DAY/10 SYP DAY10 DBASE DBF VIRUS DEAD KENNEDY DEAR NINA DEATH PASCAL DECEMBER 24TH DECEMBER 28TH DEDICATED DEFINE DEICIDE DEMOLITION DEMON DEN ZUK DESTRUCTOR DESTRUCTOR V4.00 DEVIL''S DANCE DEVIL''S DANCE-B DEWDZ DI-101 DI-108 DI-110 DI-94 DIAMOND DIANA DIR VIRUS DIR-2 DISCOM DISK CRUNCHING VIRUSDISK KILLER DISK OGRE DISK 1 DM DM 1.01 DM 1.05 DM-330 DM-400 DO-NOTHING DODO DONALD DUCK DOOM I DOOM I-B DOOM II DOOM II-B DOS-68 DOT EATER DOT KILLER DURBAN DUTCH 1039 DUTCH 424 DUTCH 555 DUTCH TINY DUTCH TINY-124 DUTCH TINY-124B DUTCH TINY-126 DYSLEXIA 2.01 E-92 E.T.C. EAR EARTH DAY 21 EC-709 EDCL EDCT EDDIE EDDIE 2000 EDDIE 3 EDV EG-709 EIGHT TUNES EINSTEIN ELIZA EMF EMMIE EMPIRE ENEMY ENGLAND ENIGMA ENOLA ERASMUS ERROR ETC EUROPE-1992 EUROPE-92 EUROPE-92B EUROPEAN VIRUSEEVIL EVIL EMPIRE EVIL EMPIRE-A EVIL EMPIRE-B EVIL MEN EXPLODE EXTERMINATOR EXUNT F-WORD F-YOU FAKE VIRX FALL FALLING LETTERS FALLING LETTERS BOOTFAT FATHER CHRISTMAS FAUST FEAR FEIST FELLOW FELLOWSHIP FGT FICH FICHV FICHV-896 FIL FILLER FINGERS FINNISH-709 FISH FISH 6 FISH BOOT FIST FIVE O''CLOCK VIRUS FLASH FLIP FLIP-2153 FLIP-2153B FLIP-2153C FLIP-2343 FLOWER FLU FLU-2 FORGER FORM FORM BOOT FORM-18 FORM-VIRUS FREEW-692 FRERE JACQUES FRERE JACQUES-B FRERE JACQUES-C FRERE JACQUES-D FRERE VIRUS FRIDAY 13TH FRIDAY FRIDAY-13TH-440 FRIENDS FRODO FROG FROG''S ALLEY FROGS FU MANCHU FU MANCHU-B FUCK YOU FUMBLE FUNGUS GENERIC G-VIRUS G-VIRUS V1.3 GBX GENERIC GENERIC BOOT GERGANA GERGANA II GERGANA III GERGANA IV GERGANA-182B GERGANA-222 GERGANA-300 GERGANA-450 GERGANA-512 GHOST BOOT GHOST COM GHOSTBALLS GHOSTBALLS.1 GLENN GLISS GMB GNOSE GOBLIN GOMB GOSIA GOT-YOU GOTCHA GOTCHA-627 GOTCHA-906 GOTCHA-A GOTCHA-A2 GOTCHA-B GOTCHA-E GRAPJE GREEMLIN GREEN CATERPILLAR GREEN LEFT GREEN PEACE GREMLIN GRITCHER GROEN LINKS GROOVE GROWING BLOCK GUILLON GUPPY HAFEN HAFENSTRASS HAFENSTRASS 2 HAHAHA HAIFA HALLO HALLOECHEN HALLOWEEN HAMMELBURG HAPPY BIRTHDAY JOSHIHAPPY DAY HAPPY HALLOWEEN HAPPY N.Y. HAPPY YEAR HARAKIRI HARY HARY ANTO HASTINGS HATE HAWAII HEADACHE HEBREW UNIVERSITY HELL HELL-892 HELLRAISER HELLWEEN HERE HERO HERO-394 HERO-B HEY YOU HH&H HITCHCOCK HIV HOLLAND GIRL HOLLAND 2 HOLO HOLOCAUST HOMINY HONG KONG HORROR HORSE HORSE BOOT HORSE DROPPER HS HUNGARIAN HUNGARIAN 482 HUNT HYBRID HYBRYD HYDRA HYDRA FAMILY HYDRA-0 HYDRA-1 HYDRA-3 HYDRA-4 HYDRA-5 HYDRA-6 HYDRA-7 HYDRA-8 HYDRA-8 TROJAN HYMN HYMN-2 I-B I11 ICELAND ICELANDIC ICELANDIC III ICELANDIC-II IDF VIRUS IDLE 528 IKV-512 IMP INCOM INFINITY INT13 INTERCEPTOR INTERNAL INTRUDER INTRUDER-B INVADER INVOL IRAQUI IRAQUI WARRIOR IRISH IRISH3 IRON MAIDEN ISRAELI ISRAELI BOOT ITALIAN ITALIAN 803 ITALIAN FILE ITALIAN PEST ITALIAN-A ITAVIR ITTI ITTI-A IVL-1 JABBERWOCKY JAPAN JAPANESE CHRISTMAS JAPANESE COOKIE JD JD-158 JD-276 JD-356 JD-392 JEFF JERK JERK-B JERUSALEM JERUSALEM 11-30 JERUSALEM 1767 JERUSALEM-1361 JERUSALEM-YELLOW JOCKER JOE''S DEMISE JOJO JOJO 2 JOKER JOKER 2 JOKER-01 JOSHI JULY 13TH JUNE 16TH JUNE 4TH JUNE 7 JW2 K KALAH KAMASYA KAMIKAZE KAMIKAZI KARIN KBUG KEME KEMEROV KEMEROVO KEMEROVO-B KEMEROVO-C KENNEDY KENNEDY-163 KENNEDY-333 KEYBOARD BUG KEYBOARD BUG-1596 KEYDROP KEYDROP DROPPER KEYPRESS KEYPRESS-VIRING KEZB KIEV KIEV 483 KINISON KIT KLAEREN KOREA KRIVMOUS KU-448 KUKAC KUKU-448 LABEL LANCS LANCS-5476 LANCSPOLY DUONG LASDIRSECT LAZY LBC BOOT LCV LEAPFROG LEECH LEECH2 LEGALIZE LEHIGH LEHIGH UNIVERSITY LEPROSY LEPROSY 1.00 LEPROSY-3 LEPROSY-C LEPROSY-D LIB1172 LIBERTY LIBERTY-1172 LIBERTY-2 LIBERTY-2A LIBERTY-2B LIBERTY-2C LIBERTY-A LIBERTY-B LIBERTY-C LIBERTY-D LIBERTY-E LIBERTY-F LIBERTY-G LIBERTY-H LIBERTY-I LIBERTY-J LIMA LISBON LITTLE BROTHER LITTLE GIRL LITTLE 2.0 LITTLE PIECES LIVE AFTER DEATH LIVE AFTER DEATH VIRLK LOA DUONG LOCKUP LOWERCASE LOWERCASE-B LOZINSKY LOZINSKY-1018 LOZINSKY-1023B LUCIFER LZ M-128 M.I.R. MACABI MACEDONIA MACH0-A MAGNITOGORSK MAGNITOGORSK 2048 MALAGA MALAISE MALTESE MALTESE AMOEBA MANNEQUIN MANOLA MANOWAR MANTA MARAUDER MARDI BROS MARIJUANA MARL MAX MAYAK MAZATLAN MERRITT METAL THUNDER MEXICAN MFACE MG MG-2 MG-3 MG-3B MGTU MIAMI MICHELANGELO MICRO 128 MICRO COP MICROBES MICROELEPHANT MICROELEPHANT V6 MICROPOX MIGRAM MIKY MILENA MILOUS MINI MINI-35 MINI-44 MINI-45 MINI-46 MINI-97 MINI-99 MINIMAL MINISTRY MINNOW MIR MIRROR MISTAKE MIX/1 MIX1 MIX2 MIXI MLTI MOCTEZUMA MOCTEZUMAS MOCTEZUMAS REVENGE MOG MONDAY MONO MONXLA MONXLA B MOSQUITO MOTHER FISH MOZART MPC MPS 1.1 MPS 3.1 MPS 3.2 4.01 MPS-OPC 1.1 MPS-OPC 3.1 MPS-OPC 3.2 MPS-OPC 4.01 MSHARK MSTU MSTU-531 MTE MULE MULTI MULTI-123 MULTI-2 MULTI-FACE MUMMY MUMMY 1.0 MUMMY 1.2 MUNICH MURPHY MURPHY-1 MUSIC BOOT MUSIC BUG MUSIC VIRUS MUSICIAN MUTANT 123 MUTANT 127 MUTANT 128 MUTANT FAMILY N/A NAGYTUD NAUGHTY HACKER NAUGHTY HACKER FAMIL NECROP NEW ZEALAND NEWCOM NEWS FLASH NINA NINES NIPPER NO FRILLS NOBOCK NOINT NOMEN NOMENCLATURE NOMENKLATURA NOON BEEP NOTHING NOV 17 NOVEMBER 17TH NOWHERE MAN NTKC NU WAY NUKE NULL NULL SET NULL-178 NUMBER 1 NUMBER BEAST NUMBER ONE NUMBER ONE-ARGENTINA NUMBER ONE-B STEALTH OGRE OHIO OLD YANKEE OMEGA OMT ONDRA ONE TEN TWO ONE THING ONT-730 ONTARIO ONTARIO 730 OROPAX OUAKE OULU P-45 P1 P1 RELATED P529 PA PADDED PAKISTANI PAKISTANI BRAIN PALETTE PARASITE PARIS PARITY PASCAL PATH PATHHUNT PATIENT BANDIT PC FLU PC FLU-2 PCBB PCV PCVRSDS PEACH PEARL HARBOR PEKING PENTAGON PERFUME PERFUME-2 PEST PHALCON PHANTOM PHOENIX PHOENIX 2000 PHOENIXD PIECES PIF V1.0 PING PONG PIRATE PISELLO PITCH PITER2 PIXEL PIXEL 877 PIXEL-897 PIXEL-899 PIXEL-899B PIXEL-905 PIXIE PIXIE 1.0 PK PLAGUE PLAICE PLASTIC BOMB PLASTIQUE PLASTIQUE 1 PLASTIQUE 2 PLASTIQUE 3012 PLASTIQUE 5.21 PLASTIQUE BOOT PLASTIQUE-B PLATINUM PLO PLOV PLOVDIV 1.1 PLOVDIV 1.3 POEM POGUE POINT KILLER POLIMER POLIMER TAPEWORM POLISH 217 POLISH 529 POLISH 583 POLISH 961 POLISH STUPID POLISH-2 POLISH-376 POLISH-45 POLISH-457 POLISH-550 POLISH-583 POSSESSED POSSESSED 1.03A POSSESSED 1.03B POSSESSED 1.07 POSSESSED 1.07B POSSESSED 1.08 POSSESSED-2443 POSSUM PRAGUE PRAGUE JOKER PRAY PREGNANT PRETORIA PRINT SCREEN PRISM PROFESOR PROUD PRTSC VIRUS PRUDENTS PS!KO PSQR VIRUS PSYCHO PSYCHOGENIUS QD335 QMU QP3 QQ-1513 QUEENS QUEENSLAND QUIET QUIT-1992 R-10 R-11 RABID AVENGER RAGE VIRUS RAPE-10 RAPE-11 RAUBKOPI RAUBKOPIE RC492 RCE-1049 RECOVERY DIAVOLYATA REDSTAR REDX RELZFU RESET RETURNS REVENGE REVENGE ATTACKER RIGOR MORTIS RKO RMIT RNA ROCKO ROSEN ROSTOV RPVS RSP-1876 RUSSIAN RUSSIAN MUTANT RYBKA SADAM SADDAM SADIST SAMSOFT DIEGO SARATOGA SARATOGA 2 SATURDAY 14TH SATURDAY 14TH SBC SCOTT''S SCOTT''S VALLEY SCREAM SCREAMING FIST SD-123 SEARCH SELF SELF-457 SELF-550 SEMTEX SENTINEL SENTINEL-3 SENTINEL-5 SEOUL SEPT 18 SEVENTH SON SEVENTH SON-284 SEVENTH SON-350 REVOLUTION SH SHADOBYTE SHADOW SHADOW-2 SHAKE SHAKE DROPPER SHAKER SHHS SHIELD SHOE-VIRUS SHORT-45 SICILIAN MOB SIGALIT SILLY SILLY-365 SIMULATI SISTER SISTER-2225 SKISM 1992 SLAYER SLAYER FAMILY SLEDGE HAMMER SLOVAK SLOVAK 2.00 SLOVAKIA SLOW SLOW-2131 SLOWDOWN SMACK SMALL-38 SMILEY SMITHSONIAN SOCHA SOLANO SOLANO 2000 SOMETHING SOMETHING-658 SORRY SOUTH AFRICAN SOV SOV-545 SOV-602 SPANISH SPANISH APRIL FOOLS SPANISH TELECOM-2 SPANZ SPARSE SPARSE-B SPYER SPYER-B SPYER-C SQUAWK SQUEAKER ST. LEOS ST. REMI STAF STAFF STAHL STAHLPLATTE STARDO 801 STARDOT 600 STARDOT 789 STEALTH STEALTH VIRUS STICKY STIGMATA STINK STINKFOOT STONE ''90 STONE-90 STONED STONED II STONED III STONED MUTATION STONED-MEXICAN STRIKER STRIKER 1 STUPID-1355 SUBLIMINAL 1.10 SUNDAY SUNDAY-2 SUOMI SUPERHACKER SURIV 1.01 SURIV 2.01 SURIV 3.00 SURIV 4.02 SURIV A SURIV B SURIV01 SURIV02 SURIV03 SURRENDER SVC 3.1 SVC 4.0 4.0-1740 SVC 5.0 SVC 6.0 SVC V3.1 V4.0 SVC V5.0 SVERDLOV SVIR SWAP SWEDISH SWEDISH 709 SWEDISH BOYS SWEDISH DISASTER SWISS 143 SX SYLVIA SYLVIA 2 SYSLOCK SYSTEM VIRUS TACK TAIWAN TAIWAN 2 TAIWAN 3 TAIWAN 4 TAIWAN-B TALENTLESS JERK TANNENBAUM TAUNT TB TEL AVIV TELCOM BOOT TELECOM TELECOM FILE TELEFONICA TEN BYTES BYTES 2 TENBYTES-1514 TEQUILA TERMINATOR TERROR TESTER TESTVIR TESTVIRUS V1.4 THANKSGIVING THE PLAGUE THE STUPID VIRUS THIMBLE THOR THURSDAY 12TH TIME B TIME VIRUS TIMID TIMID-305 TIMID-ORIG TIMOR TINY VIRUS TINY DI TINY DI-101 TINY DI-108 TINY DI-110 TINY DI-94 TINY FAMILY TINY MUTANT TINY VIRUS TINY-123 TINY-124 TINY-124B TINY-126 TINY-127 TINY-128 TINY-133 TINY-134 TINY-138 TINY-143 TINY-154 TINY-156 TINY-158 TINY-159 TINY-160 TINY-167 TINY-198 TOBACCO TODOR TOKYO TONY TONY BOOT TOOTHLESS VIRUS TOPLER TOPO TORMENTOR TORMENTOR-1072 TORMENTOR-205 TP44VIR TRACEBACK TRACEBACK 3029 TRACEBACK II TRACEBACK-4 TRAVEL VIRUS TRAVELLER TRIVIAL TRIVIAL-BANANA TRIVIAL-BLOOD LUST TROI TUESDAY TULA-419 TUMEN V.5 TUMEN V1.2 TUMEN V2.0 TUQ TURBO 448 TURBO KUKAC TURBO KUKAC 9.9 TURKU TWIN TWIN-351 TIGERS TYPE TYPO BOOT TYPO COM TYPO-712 UIUC VIRUS UNESCO UNK URFYDUS USCAN VIRUS USSR USSR 1049 USSR 1064 USSR 1689 USSR 2144 USSR 2144-B USSR 257 USSR 3103 USSR 311 USSR 394 USSR 492 USSR 516 USSR 600 USSR 707 USSR 711 USSR 830 USSR 948 USSR-257 USSR-311 USSR-394 USSR-492 USSR-600 USSR-707 USSR-711 USSR-948 V-1 V-10 V-11 V-1N V-20 V-30 V-31 V-311 V-32 V-345 V-3N V-801 V-ALERT V-IVL110 V-SIGN V08-15 V1024 V1193 V1226 V123 V1277 STEALTH VIRUS V1302 V1600 V1701NEW V191 V1963 V200 V2000 V2100 V2144 V217 V2480 V257 V270X V2P1 V2P2 V2P6 V337 V376 V483 V516. 516 V600 V605 V651 V707 V711-2 V791 V800 V801 V817 V82 V920 V948 VACSINA VAN SOFT VBASIC 2 VBASIC VIRUS VCOMM VCS VENEZUELAN VERA CRUZ VFSI VGA2CGA VHP VHP-2 VHP-348 VHP-353 VHP-367 VHP-435 VHP-547 VHP-623 VHP-757 VHP-776 VHP2 VICTOR VIENNA VIENNA 535 VIENNA 637 VIENNA 646 VIENNA 774 VIENNA C VIENNA-528 VIENNA-547 VIENNA-583 VIENNA-IRAQUI VINDICATOR VIOLATOR VIOLATOR B1 VIOLATOR B2 VIOLATOR B2-969 VIOLATOR B3 VIOLATOR B4 VIOLATOR BT VIOLATOR STRAIN B VIOLATOR STRAIN B4 VIOLETTA VIPER VIPER DROPPER VIPERIZE VIRDEM VIRDEM 2 VIRDEM-1542 VIRDEM-792 VIRING VIRUS B VIRUS CONSTRUCTION SVIRUS-101 VIRUS-90 VIVALDI VMEN VMESSIAH VORONEZH VORONEZH-370 VORONEZH-CHEMIST VOTE VP VRIEST VVF 3.4 W13 W13-361 W13-377 W13-534B W13-A W13-B W13-REQ WARNING WARRIOR WERE HERE WESTWOOD WHALE WINDOWS WILBUR WINDMILL WINDMILL DROPPER WISCONSIN WISHES WOLF WOLFMAN WONDER WONDER-2 WONDERFUL WORDSWAP WORDSWAP-1069 WORDSWAP-1085 WORDSWAP-1387 WORDSWAP-1503 WORLD PEACE WORM-16850 WORM-17690 WWT 01 WWT 02 WWT 02B X-FUNGUS XA1 XABARAS XMAS JAPAN XPEH XUXA YAFO YALE YANKEE 2 YANKEE DOODLE YANKEE DOODLE DROPPEYANKEE VIRUS YANKEE-GO-HOME YAP YAUNCH YEAR 1992 YEAR-6545 YUKON OVERWRITING WHALE ZARAGOSA ZERO ZERO BUG ZERO-HUNT ZEROHUNT ZEROTIME ZEROTO-O ZHERKOV ZHERKOV-1882 ZK900 ZMT ZRK ZUL ZY ZZ Name of virus : 1008 : SUOMI,OULU Status : Uncommon Discovery : JUNE- 1990 Origin : HELSINKI Additional information: There will be an increase in the length of .COM file. Internal stack errors will be generated. System will halt requiring re-boot of the system. Name of virus : 1024 PRINT SCREEN : 1024PSCR Status : Uncommon Discovery : MAY- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. The PRINT SCREEN key will not function properly. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : 1024 SBC : SBC Status : Uncommon Discovery : OCTOBER- 1991 Origin : CANADA Additional information: There will be an increase in length of .COM and .EXE files. The printing function does not work properly. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : 1067 Status : Uncommon Discovery : JANUARY- 1991 Origin : EUROPE Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. This virus stays resident in memory. Error messages will appear on screen. Name of virus : 1210 : PRUDENTS Status : Uncommon Discovery : DECEMBER- 1989 Origin : SPAIN Size : 210 BYTES Additional information: There will be an increase in length of .EXE files. Failures will occur when attempting to write to the disk. This virus stays resident in memory. Name of virus : 1226 : V1226 Status : Uncommon Discovery : JULY- 1990 Origin : BULGARIA Size : 226 BYTES Additional information: * There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Random characters will appear on the system monitor. The floppy drive will constantly spin. Name of virus : 1241 Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Size : 241 BYTES Additional information: Y There will be an increase in length of .COM files. This virus stays resident in memory. Name of virus : 1244 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: b There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Name of virus : 1253 : ANTICAD,V-1,THANKSGIVING Status : Uncommon Discovery : AUGUST- 1990 Origin : AUSTRIA Size : 253 BYTES Additional information: This virus stays resident in memory. Changes are made to the boot sector of the hard disk. There will be an increase in the length of .COM file. The data in the partition table will be corrupted. Name of virus : 1260 : V2P1,CHAMELEON Status : RESEARCH Discovery : JANUARY- 1990 Origin : MINNESOTA Additional information: 4 There will be an increase in length of .COM files. Name of virus : 1308 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Size : 308 BYTES Additional information: V There will be an increase in length of .COM files. Disk drive clusters will be lost. Name of virus : 1381 : INTERNAL Status : COMMON Discovery : JUNE- 1990 Size : 381 BYTES Additional information: 4 There will be an increase in length of .EXE files. Name of virus : 1385 : DISK PLUS 1 Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Size : 385 BYTES Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : 1392 : AMOEBA VIRUS Status : Uncommon Discovery : MARCH- 1990 Origin : INDONESIA Size : 392 BYTES Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. A message is displayed on the screen on December 24. Name of virus : 1415 : TEN BYTES 2 Status : Uncommon Discovery : AUGUST- 1991 Additional information: = There will be an increase in length of .COM and .EXE files. Name of virus : 1452 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: W There will be an increase in length of .COM files. Random errors will be encountered. Name of virus : 1554 : TEN BYTES,V-ALERT,1559 Status : Uncommon Discovery : FEBRUARY- 1990 Size : 554 BYTES Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. There will be a corruption in the linkage between files. System will halt requiring re-boot of the system. Name of virus : 1575 : 1577,1591,GREEN CATERPILLAR Status : COMMON Discovery : JANUARY- 1991 Origin : TAIWAN: ISOLATED: ONTARIO Additional information: 6 There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The system response to DIR commands will be very slow. Changes will occur to file date and/or time. A green caterpillar will appear on the monitor. Name of virus : 1605 : 1605-B,1600,ANTISCAN,TEL AVIV Status : Uncommon Discovery : SEPTEMBER- 1990 Origin : UNKNOWN Size : 605 BYTES Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. System will run very slowly. Name of virus : 1661 : CASCADE,1661 Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : TURKEY Size : 661 BYTES Additional information: b There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Name of virus : 1704 FORMAT Status : Uncommon Discovery : JANUARY- 1989 Size : 704 BYTES Additional information: This virus stays resident in memory. The monitor will show cascading letters. There will be an increase in the length of .COM file. Disk drives will be formatted. Name of virus : 1720 : PSQR VIRUS Status : Uncommon Discovery : MARCH- 1990 Origin : SPAIN Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. The data in the partition table will be corrupted. Files will be deleted on Friday the 13th. Name of virus : 1835 Status : NEW Discovery : JUNE- 1992 Origin : BULGARIA Size : 835 BYTES Additional information: 4 There will be an increase in length of .EXE files. Name of virus : 1840 Status : Uncommon Discovery : JULY- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Unexpected write protect errors will be encountered. Name of virus : 191 : V191 Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Messages will be displayed on the monitor indicating a PATH NOT FOUND error. Name of virus : 1963 : V1963,1963 OVERWRITE Status : Uncommon Discovery : MAY- 1991 Origin : UNKNOWN Size : 963 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File allocation errors will occur. Name of virus : 2559 : YAUNCH Status : Uncommon Discovery : JUNE- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. System will halt requiring re-boot of the system. Drives will be accessed when not expected. Name of virus : 2560 : MAGNITOGORSK Status : Uncommon Discovery : APRIL- 1991 Origin : USSR Size : 560 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : 2623 Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : 310 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: i There will be an increase in length of .COM files. Unexpected write protect errors will be encountered. Name of virus : 334 Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : 337 : V337 Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: Y There will be an increase in length of .COM files. This virus stays resident in memory. Name of virus : 3445-STEALTH : 3445 Status : Uncommon Discovery : NOVEMBER- 1990 Origin : UNKNOWN Size : 445 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File allocation errors will occur. System will halt requiring re-boot of the system. Name of virus : 382 RECOVERY : 382,RECOVERY,382 RECOVERY.1 Status : Uncommon Discovery : JULY- 1990 Origin : TAIWAN Additional information: The first 382 bytes of .COM files will be overwritten. System will halt requiring re-boot of the system. Random characters will appear on the system monitor. The floppy drive will constantly spin. The system will not boot. Name of virus : 405 : HAMMELBURG,405-EST Status : EXTINCT Discovery : -1987 Origin : AUSTRIA OR GERMANY Additional information: ` ".COM" files will not execute properly. The first 405 bytes of .COM files will be overwritten. Name of virus : 408 Status : Uncommon Discovery : OCTOBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Random errors will be encountered. Unexpected write protect errors will be encountered. Name of virus : 4096 : CENTURY VIRUS,FRODO,IDF VIRUS,STEALTH VIRUS : 100 YEARS VIRUS Status : COMMON Discovery : JANUARY- 1990 Origin : ISRAEL Additional information: There will be an increase in length of .COM, .EXE and .OVL files. A terminate and stay resident virus which hides file growth. Using CHKDSK will show that files are cross linked. Data files will be corrupted. Name of virus : 4870 OVERWRITING : 4870 Status : Uncommon Discovery : FEBRUARY- 1991 Origin : UNKNOWN Size : 870 BYTES Additional information: J Programs will fail to execute properly. Program files will be corrupted. Name of virus : 512 : 512-A,NUMBER OF THE BEAST VIRUS,STEALTH VIRUS Status : Uncommon Discovery : NOVEMBER- 1989 Origin : BULGARIA Additional information: Programs will fail to execute properly. System will halt requiring re-boot of the system. This virus stays resident in memory. Name of virus : 5120 : VBASIC VIRUS,BASIC VIRUS Status : COMMON Discovery : MAY- 1990 Origin : WEST GERMANY Size : 120 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Files will be corrupted. Drives will be accessed when not expected. Name of virus : 572 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : 621 : SOMETHING Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : 646 : VIENNA C,VIENNA 646 Status : Uncommon Discovery : OCTOBER- 1990 Origin : UNKNOWN Additional information: 7 There will be an increase in the length of .COM file. Name of virus : 66A Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Programs will fail to execute properly. Messages will be displayed on the monitor indicating TOO MANY FILES OPEN. Name of virus : 702 Status : NEW Discovery : JULY- 1992 Origin : UNKNOWN Additional information: Y There will be an increase in length of .COM files. This virus stays resident in memory. Name of virus : 7808 Status : Uncommon Discovery : MAY- 1991 Origin : UNKNOWN Size : 808 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Changes will occur to file date and/or time. A message will be displayed indicating there is not enough memory. Name of virus : 834 : ARAB Status : Uncommon Discovery : FEBRUARY- 1991 Origin : SAUDI ARABIA Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. The data in the partition table will be corrupted. Drives will be accessed when not expected. System will halt requiring re-boot of the system. Name of virus : 914 : RUSSIAN MUTANT Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : 923 : HEY YOU Status : Uncommon Discovery : JUNE- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Messages will be displayed on the monitor. Programs will fail to execute properly. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : 981 : JOE'S DEMISE Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Size : 932 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : ADA Status : Uncommon Discovery : OCTOBER- 1991 Origin : ARGENTINA Size : 600 BYTES Additional information: 4 There will be an increase in length of .COM files. 5 Clicking sounds can be heard on the system speaker. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : ADOLPH Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: 4 There will be an increase in length of .COM files. Name of virus : AFRICAN 109 : 109 Status : Uncommon Discovery : JANUARY- 1992 Origin : REPUBLIC OF SOUTH AFRICA Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : AH : TUESDAY,DAVID-1173 Status : RESEARCH Discovery : MAY- 1991 Origin : ITALY Size : 173 BYTES Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. The hard disk will be formatted. Messages will be displayed on the monitor. Name of virus : AIDS : HAHAHA,TAUNT,VGA2CGA,BURGER,PASCAL Status : ENDANGERED Discovery : -1989 Additional information: L Messages will be displayed on the monitor. ".COM" files will be corrupted. Name of virus : AIDS II : COMPANION VIRUS Status : ENDANGERED Discovery : APRIL- 1990 Additional information: q New .COM files will be created. The system will start playing music. Messages will be displayed on the monitor. Name of virus : AIRCOP Status : COMMON Discovery : JULY- 1990 Origin : TAIWAN: Additional information: Changes are made to the boot sector of the hard disk. System will halt requiring re-boot of the system. Messages will be displayed on the monitor. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : AKUKU : METAL THUNDER Status : Uncommon Discovery : JANUARY- 1991 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Error messages will appear on screen. Drives will be accessed when not expected. Name of virus : ALABAMA : ALA Status : ENDANGERED Discovery : OCTOBER- 1989 Origin : ISRAEL Size : 560 BYTES Additional information: There will be an increase in length of .EXE files. A memory resident virus. Messages will be displayed on the monitor. The FAT will be corrupted. Name of virus : ALAMEDA : 500,MAZATLAN,MERRITT,PEKING,SEOUL,YALE Status : COMMON Discovery : -1987 Origin : CALIFORNIA Additional information: Disks will fail to boot. A memory resident virus which infects .COM files. Changes are made to the boot sector of the hard disk. Name of virus : ALBANIA : ALBANIA-429,ALBANIA-506,ALBANIA-575,ALBANIA-606 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Programs will fail to execute properly. System will halt requiring re-boot of the system. Name of virus : ALBANIAN Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Size : 991 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : ALFA Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : AMBULANCE CAR : AMBULANCE,REDX Status : Uncommon Discovery : JUNE- 1990 Origin : WEST GERMANY Additional information: ^ There will be an increase in the length of .COM file. Monitor will display various graphics. Name of virus : AMILIA Status : Uncommon Discovery : DECEMBER- 1991 Origin : MONTREAL Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Messages will be displayed on the monitor and the system will halt requiring a reboot. Name of virus : AMSTRAD Status : ENDANGERED Discovery : NOVEMBER- 1989 Origin : PORTUGAL Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Files may be overwritten with new data. System will halt requiring re-boot of the system. Name of virus : ANIMUS : ANIMUS-7360,COOKIE-7360 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Size : 360 BYTES Additional information: There will be an increase in length of .COM and .EXE files. File names are interchanged between files. Drives will be accessed when not expected. Programs will fail to execute properly. This virus stays resident in memory. Changes will occur to file date and/or time. Name of virus : ANT Status : NEW Discovery : JUNE- 1992 Origin : UNKNOWN Additional information: f There will be an increase in length of .COM files. Time stamp on the file will be set to 62 seconds. Name of virus : ANTHRAX Status : Uncommon Discovery : JULY- 1990 Origin : BULGARIA Additional information: = There will be an increase in length of .COM and .EXE files. Name of virus : ANTI-D Status : Uncommon Discovery : MARCH- 1992 Origin : ARGENTINA Additional information: ~ There will be an increase in length of .COM files. This virus stays resident in memory. The keyboard will not work properly. Name of virus : ANTI-PASCAL : ANTI-PASCAL 605 VIRUS,AP-605,C-605,V605 Status : RESEARCH Discovery : JUNE- 1990 Origin : BULGARIA Additional information: ` There will be an increase in the length of .COM file. ".BAT" and .PAS files will be corrupted. Name of virus : ANTI-PASCAL II : ANTI-PASCAL 400,AP-400 Status : RESEARCH Discovery : JUNE- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. ".BAT," .BAK and .PAS files will be deleted. Changes are made to the boot sector of the hard disk. Name of virus : ANTI-TEL : TELCOM BOOT Status : Uncommon Discovery : JUNE- 1991 Origin : SPAIN Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Files on the hard disk will be overwritten. System will run very slowly. Name of virus : ANTICHRIST Status : RESEARCH Discovery : MARCH- 1991 Origin : ITALY Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : ANTIMON Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : ANTO Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. System will halt requiring re-boot of the system. The system will not boot. Divide overflow errors will occur. Name of virus : ARF : RIGOR MORTIS,THOR Status : Uncommon Discovery : MARCH- 1991 Origin : CANADA Additional information: b There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Name of virus : ARGENTINA : ARGENTINA 1.0 Status : Uncommon Discovery : OCTOBER- 1991 Origin : BUENOS AIRES Additional information: There will be an increase in the length of .COM file. This virus stays resident in memory. Messages will be displayed on the monitor. Name of virus : ARMAGEDON : ARMA,ARMAGEDON-1077 Status : Uncommon Discovery : JUNE- 1990 Origin : ATHENS Additional information: Data is sent to the COM ports. Name of virus : ASHAR : SHOE-VIRUS,UIUC VIRUS Status : COMMON Discovery : - Additional information: i Changes are made to the boot sector of the hard disk. A memory resident virus which infects .COM files. Name of virus : ASP-472 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : EASTERN EUROPE Additional information: x There will be an increase in length of .COM and .EXE files. The virus is activated each time interrupt 21 is executed. Name of virus : AT144 : 144 Status : Uncommon Discovery : JUNE- 1991 Origin : EUROPE Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. System will halt requiring re-boot of the system. Name of virus : ATHENS Status : NEW Discovery : MAY- 1992 Origin : ATHENS Additional information: There will be an increase in length of .COM and .EXE files. The monitor will display a GENERAL FAILURE ERROR READING DRIVE message. Name of virus : ATTACK : ATTACK-1501,CUBAN Status : Uncommon Discovery : APRIL- 1992 Origin : CUBA Size : 501 BYTES Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. A message will be displayed indicating there is not enough memory. Name of virus : ATTENTION! : USSR 394,USSR-394,394 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. 5 Clicking sounds can be heard on the system speaker. Changes will occur to file date and/or time. Name of virus : AUGUST 16TH : IRON MAIDEN Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: _ There will be an increase in length of .COM files. Drives will be accessed when not expected. Name of virus : AUSTRALIAN : CLIPPER Status : Uncommon Discovery : JUNE- 1991 Origin : AUSTRALIA Size : 413 BYTES Additional information: b There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Name of virus : AUSTRALIAN 403 : 403,ZEROTO-O Status : Uncommon Discovery : FEBRUARY- 1991 Origin : AUSTRALIA Additional information: The virus is memory resident and there will be an increase in the length of .COM files equal to 403 bytes. Changes will occur to file date and/or time. ".COM" files will not execute properly. Name of virus : AZUSA : HONG KONG Status : COMMON Discovery : FEBRUARY- 1991 Origin : HONG KONG Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. LPT1 and COM1 ports may become unuseable. Name of virus : BACKTIME Status : Uncommon Discovery : AUGUST- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : BAD BOY : BAD BOY 2 Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : BAD BRAIN : BB Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: I ".COM" files will be corrupted. Programs will fail to execute properly. Name of virus : BADSEC : 905 Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Bad sectors show up on hard drive. Drives will be accessed when not expected. System will halt requiring re-boot of the system. Name of virus : BANANA : TRIVIAL-BANANA Status : NEW Discovery : JUNE- 1992 Origin : SWEDEN Additional information: _ ".COM" files will be corrupted or overwritten with new data. Program files will be corrupted. Name of virus : BANDIT Status : RESEARCH Discovery : MAY- 1991 Origin : ITALY Size : 641 BYTES Additional information: 4 There will be an increase in length of .EXE files. Name of virus : BARCELONA Status : Uncommon Discovery : DECEMBER- 1991 Origin : SPAIN Size : 792 BYTES Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. This virus stays resident in memory. Name of virus : BEAST-N-BLACK : BEAST Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNITED STATES Additional information: m There will be an increase in length of .COM files. The .COM programs in the DOS directory could be deleted. Name of virus : BEBE Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: h There will be an increase in length of .COM files. Programs will take a long time to load and execute. 5 Clicking sounds can be heard on the system speaker. Name of virus : BEST WISHES : BEST WISH,WISHES Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: P There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Changes will occur to file date and/or time. File not found errors will occur. Changes are made to the boot sector of the hard disk. Name of virus : BETA : PHALCON Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Size : 117 BYTES Additional information: 4 There will be an increase in length of .COM files. Name of virus : BEWARE Status : Uncommon Discovery : JANUARY- 1992 Origin : MOSCOW Size : 442 BYTES Additional information: 4 There will be an increase in length of .COM files. Name of virus : BFD Status : NEW Discovery : JULY- 1992 Origin : UNITED STATES Additional information: Changes are made to the boot sector of the hard disk. EXE files will be corrupted or overwritten. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Disks will fail to boot. Name of virus : BIG JOKE Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Messages will be displayed on the monitor. Name of virus : BLACK MONDAY : BODERLINE,MONDAY Status : Uncommon Discovery : SEPTEMBER- 1990 Origin : KUALA LUMPUR Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Changes will occur to file date and/or time. System will halt requiring re-boot of the system. Name of virus : BLACK WIZARD Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: h There will be an increase in length of .EXE files. Music will be heard coming from the system speaker. Name of virus : BLAZE Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: ".COM" and .EXE files will be corrupted. Changes will occur to file date and/or time. This virus stays resident in memory. Messages will be displayed on the monitor. The system will not boot. Name of virus : BLINKER : BLINKER-496,PRAGUE,BLINKER Status : Uncommon Discovery : NOVEMBER- 1991 Origin : PRAGUE Size : 512 BYTES Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Random error messages will be generated. Name of virus : BLJEC : BLJEC3,BLJEC3B Status : Uncommon Discovery : MAY- 1991 Size : 231 - 374 BYTES Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Changes will occur to file date and/or time. Errors will be encountered communicating with the printer. The system will not boot. Name of virus : BLOOD : BLOOD2 Status : Uncommon Discovery : AUGUST- 1990 Origin : NATAL Size : 418 BYTES Additional information: There will be an increase in the length of .COM file. System will halt requiring re-boot of the system. Cascading letters will be displayed on the screen and the system may hang. Name of virus : BLOOD LUST : TRIVIAL-BLOOD LUST Status : NEW Discovery : JUNE- 1992 Origin : SWEDEN Additional information: y ".COM" files will be corrupted or overwritten with new data. Program files will be corrupted. The system will not boot. Name of virus : BLOODY! : BEIJING,JUNE 4TH Status : COMMON Discovery : DECEMBER- 1990 Origin : TAIWAN Additional information: The system will take much longer to boot than normal. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Messages will be displayed on the monitor. Changes are made to the boot sector of the hard disk. Name of virus : BOB Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Size : 414 BYTES Additional information: 4 There will be an increase in length of .COM files. Name of virus : BOMBER : BOMB Status : NEW Discovery : MAY- 1992 Origin : MALAYSIA Size : 204 BYTES Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The system response to DIR commands will be very slow. A beeping sound and occasional message are displayed. Name of virus : BOOJUM Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : BOW : 5856 Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Size : 856 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : BOYS Status : Uncommon Discovery : MAY- 1991 Origin : BULGARIA Additional information: k There will be an increase in length of .COM files. EXE programs will be deleted. Files will be corrupted. Name of virus : BOYS 2 Status : Uncommon Discovery : AUGUST- 1991 Origin : UNKNOWN Additional information: R There will be an increase in length of .COM files. EXE programs will be deleted. Name of virus : BRAIN : PAKISTANI,PAKISTANI BRAIN,CLONE,NIPPER Status : COMMON Discovery : -1986 Origin : PAKISTAN Additional information: The system will take much longer to boot than normal. The disk volume label will be changed. A memory resident virus which infects .COM files. Three contiguous bad sectors will show up on floppy disks only. Changes are made to the boot sector of the hard disk. Name of virus : BRAINY Status : Uncommon Discovery : NOVEMBER- 1991 Origin : BULGARIA Size : 531 BYTES Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : BRAZILIAN BUG Status : Uncommon Discovery : MAY- 1992 Origin : BRAZIL Size : 343 BYTES Additional information: There will be an increase in length of .COM files. Messages will be displayed on the monitor. Changes will occur to file date and/or time. Name of virus : BROTHERS : BROTHERS IN ARM Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File allocation errors will occur. Name of virus : BURGER : 404,505,509,537,540,541,542,560,560-B,909090H : CIA,CIA-2 Status : Uncommon Discovery : -1986 Origin : WEST GERMANY Additional information: ) Programs will fail to execute properly. Name of virus : BURGHOFER Status : Uncommon Discovery : JUNE- 1991 Origin : SWITZERLAND Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : BUSTED Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: - EXE files will be corrupted or overwritten. Name of virus : CADKILL : MILOUS Status : Uncommon Discovery : JULY- 1991 Origin : UNKNOWN Size : 163 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : CANNABIS : CANNABIS 2,CANNABIS 3 Status : Uncommon Discovery : OCTOBER- 1991 Origin : THE NETHERLANDS Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. DIR command will not work properly. Messages will be displayed on the monitor. Name of virus : CANSU : SIGALIT,V-SIGN Status : NEW Discovery : JUNE- 1992 Origin : TURKEY Additional information: Changes are made to the boot sector of the hard disk. The data in the partition table will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Monitor will display various graphics. Name of virus : CARA Status : Uncommon Discovery : AUGUST- 1991 Origin : SPAIN Additional information: There will be an increase in the length of .COM file. This virus stays resident in memory. Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : CARFIELD Status : Uncommon Discovery : -1991 Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Messages will be displayed on the monitor. Name of virus : CARIOCA Status : Uncommon Discovery : NOVEMBER- 1990 Additional information: \ This virus stays resident in memory. There will be an increase in the length of .COM file. Name of virus : CASCADE : BLACKJACK,FALL,FALLING LETTERS,1701,1704 : 1701 MUTATION,1704-B,CASCADE-1621,CASCADE-1706 Status : COMMON Discovery : OCTOBER- 1987 Origin : GERMANY Additional information: This virus stays resident in memory. The monitor will show cascading letters. There will be an increase in length of .COM files. The system will reboot at random times. Name of virus : CASINO : CASINO-B,CASINO-C Status : Uncommon Discovery : APRIL- 1991 Origin : MALTA Additional information: There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File allocation errors will occur. A slot machine game will appear on screen. File allocation errors will occur. Name of virus : CASPER : CHAMELEON Status : Uncommon Discovery : AUGUST- 1990 Size : 200 BYTES Additional information: [ There will be an increase in length of .COM files. On April 1 the hard disk is corrupted. Name of virus : CATMAN Status : Uncommon Discovery : JULY- 1991 Origin : USSR Additional information: Changes are made to the boot sector of the hard disk. The data in the partition table will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : CAZ Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : SYSTEM HANGS Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : CB-1530 : 1530 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : CD : THURSDAY THE 12TH Status : Uncommon Discovery : AUGUST- 1991 Origin : GERMANY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Failures will occur when attempting to write to the disk. Name of virus : CHANG Status : NEW Discovery : JULY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : CHAOS Status : Uncommon Discovery : DECEMBER- 1989 Origin : ENGLAND Additional information: Messages will be displayed on the monitor. This virus stays resident in memory. Bad sectors show up on hard drive. Changes are made to the boot sector of the hard disk. Name of virus : CHASER Status : NEW Discovery : JUNE- 1992 Origin : UNKNOWN Additional information: f There will be an increase in length of .EXE files. System will halt requiring re-boot of the system. Name of virus : CHECKSUM : CHECKSUM 1.00,CKSUM Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Size : 233 BYTES Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : CHEEBA Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : CHEMMY Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files and the amount of free memory and total system memory will decrease. Name of virus : CHRISTMAS IN JAPAN : XMAS IN JAPAN,JAPANESE CHRISTMAS,JAPAN : JAPANESE COOKIE Status : Uncommon Discovery : SEPTEMBER- 1989 Origin : JAPAN Additional information: _ There will be an increase in length of .COM files. Messages will be displayed on the monitor. Name of virus : CHRISTMAS TREE : TANNENBAUM,XA1,1539 Status : ENDANGERED Discovery : MARCH- 1990 Origin : GERMANY Size : 539 BYTES Additional information: There will be an increase in length of .COM files. The monitor will display various messages. The data in the partition table will be corrupted. Name of virus : CINDERELLA Status : Uncommon Discovery : JULY- 1991 Origin : FINLAND Additional information: Y There will be an increase in length of .COM files. This virus stays resident in memory. Name of virus : CLOSE Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Messages will be displayed on the monitor. The system will not boot. Name of virus : CMDR BOMBER Status : NEW Discovery : MAY- 1992 Origin : BULGARIA Additional information: Y There will be an increase in length of .COM files. This virus stays resident in memory. Name of virus : CODE ZERO : EARTH DAY,KINISON,PEARL HARBOR Status : NEW Discovery : MAY- 1992 Origin : UNITED STATES Additional information: _ There will be an increase in length of .COM files. Messages will be displayed on the monitor. Name of virus : COM : N/A,N/A,N/A,N/A,N/A,G - GENERIC Status : G - GENERIC Discovery : - Name of virus : COOKIE Status : Uncommon Discovery : JANUARY- 1991 Origin : UNKNOWN/EUROPE Size : 232 BYTES Additional information: o There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Name of virus : COP-MPL Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Programs will take a long time to load and execute. Drives will be accessed when not expected. Name of virus : COPYRIGHT : V1193 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN/ EASTERN EUROPE Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : COSSIGA Status : Uncommon Discovery : FEBRUARY- 1992 Origin : ITALY Additional information: There will be an increase in length of .EXE files. The video mode will be changed to 40 columns. Messages will be displayed on the monitor. EXE programs will not execute properly. Name of virus : CRACKER JACK : NECROP Status : Uncommon Discovery : MAY- 1991 Origin : ITALY Name of virus : CRAZY EDDIE : ENGLAND Status : Uncommon Discovery : -1991 Origin : ENGLAND Additional information: There will be an increase in length of .COM and .EXE files. The data in the partition table will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Corruption of the hard disk will occur. File allocation errors will occur. Name of virus : CRAZY IMP : IMP Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Size : 445 BYTES Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : CREEPER : CREEPING TORMENTOR Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : CREW-2480 : 2480,V2480 Status : Uncommon Discovery : FEBRUARY- 1991 Origin : FINLAND Size : 480 BYTES Additional information: There will be an increase in the length of .COM file. Changes will occur to file date and/or time. System will halt requiring re-boot of the system. System will reboot at random times. Monitor will display various graphics. Name of virus : CRF Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : CRIMINAL Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Size : 615 BYTES Additional information: | There will be an increase in length of .COM files. This virus stays resident in memory. File allocation errors will occur. Name of virus : DAD Status : Uncommon Discovery : APRIL- 1992 Origin : ARGENTINA Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. Messages will be displayed on the monitor. Name of virus : DADA Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. EXE programs will not execute properly. Name of virus : DAMAGE : DAMAGE-B Status : Uncommon Discovery : MAY- 1991 Origin : ITALY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Display special effects will be encountered. Messages will be displayed on the monitor indicating a SECTOR NOT FOUND error. Name of virus : DAME : DEDICATED,FEAR,MTE Status : Uncommon Discovery : FEBRUARY- 1992 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Failures will occur when attempting to write to the disk. System will reboot at random times. Name of virus : DARK AVENGER : BLACK AVENGER,BORODA,EDDIE,DIANA,RABID AVENGER : VAN SOFT,DARK AVENGER 1801,DARK AVENGER-C : DARK AVENGER-D,PS!KO,EVIL MEN,DARK AVENGER.1E Status : COMMON Discovery : SEPTEMBER- 1989 Origin : BULGARIA Additional information: This virus stays resident in memory. There will be an increase in length of .COM, .EXE, and .SYS files. Files on the disk will be corrupted. Name of virus : DARK LORD : DARK LORD-B,MANOWAR,TERROR Status : Uncommon Discovery : MAY- 1991 Origin : BULGARIA Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : DARTH VADER : DARTH-1,DARTH-2,DARTH-3,DARTH-4,DARTH-5 Status : RESEARCH Discovery : MAY- 1991 Origin : BULGARIA Additional information: > ".COM" files will be corrupted or overwritten with new data. Name of virus : DATACRIME : 1168,COLUMBUS DAY Status : EXTINCT Discovery : APRIL- 1989 Origin : NETHERLANDS Size : 168 BYTES Additional information: There will be an increase in length of .COM files. Drives will be accessed when not expected. Disk drives will be formatted. Messages will be displayed on the monitor between Oct 13 and Dec 31. Name of virus : DATACRIME II : 1514,COLUMBUS DAY, Status : ENDANGERED Discovery : SEPTEMBER- 1989 Origin : NETHERLANDS Size : 514 BYTES Additional information: \ There will be an increase in length of .COM and .EXE files. Disk drives will be formatted. Name of virus : DATACRIME IIB : 1917,COLUMBUS DAY Status : ENDANGERED Discovery : NOVEMBER- 1989 Origin : NETHERLANDS Size : 917 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Disk drives will be formatted. Drives will be accessed when not expected. Name of virus : DATACRIME-B : 1280,COLUMBUS DAY Status : EXTINCT Discovery : APRIL- 1989 Origin : NETHERLANDS Size : 280 BYTES Additional information: ~ There will be an increase in length of .EXE files. Disk drives will be formatted. Drives will be accessed when not expected. Name of virus : DATALOCK : DATALOCK 1.00,V920,DATALOCK-1043 Status : COMMON Discovery : NOVEMBER- 1990 Origin : UNITED STATES Additional information: , There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Attempts to execute files ending with .DBF will give the error message OUT OF FILE HANDLES. Name of virus : DAVIS Status : NEW Discovery : MAY- 1992 Origin : MALAYSIA Additional information: There will be an increase in length of .EXE files. A beeping sound and occasional message are displayed. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : DAY10 : DAY/10 SYP Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Corruption of the hard disk will occur. Name of virus : DBASE : DBF VIRUS Status : EXTINCT Discovery : SEPTEMBER- 1988 Origin : NEW YORK Additional information: There will be an increase in length of .COM and .OVL files. Data files will be corrupted. This virus stays resident in memory. The FAT and the partition table will be corrupted. Name of virus : DEFINE Status : Uncommon Discovery : MAY- 1991 Origin : AUSTRALIA Additional information: i Program files will be corrupted. Changes will occur to file date and/or time. The system will not boot. Name of virus : DEICIDE : GLENN Status : Uncommon Discovery : FEBRUARY- 1991 Origin : NETHERLANDS Additional information: ".COM" files will be corrupted or overwritten with new data. Messages will be displayed on the monitor. The FAT will be corrupted. System will halt requiring re-boot of the system. Name of virus : DEMOLITION Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Size : 585 BYTES Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : DEN ZUK : SEARCH,VENEZUELAN Status : COMMON Discovery : SEPTEMBER- 1988 Origin : INDONESIA Additional information: Messages will be displayed on the monitor. Disk drives will be formatted. This virus stays resident in memory. Changes are made to the boot sector of the hard disk. Name of virus : DESTRUCTOR V4.00 : DESTRUCTOR Status : Uncommon Discovery : DECEMBER- 1990 Origin : BULGARIA Size : 150 - 1162 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : DEVIL'S DANCE : MEXICAN,DEVIL'S DANCE-B Status : Uncommon Discovery : DECEMBER- 1989 Origin : MEXICO Additional information: Messages will be displayed on the monitor. There will be an increase in the length of .COM file. The FAT will be corrupted. This virus stays resident in memory. Name of virus : DEWDZ Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Messages will be displayed on the monitor. System will halt requiring re-boot of the system. The system will not boot. Name of virus : DIR VIRUS : 691 Status : Uncommon Discovery : JANUARY- 1991 Origin : USSR Additional information: There will be an increase in the length of .COM file. This virus stays resident in memory. The system response to DIR commands will be very slow. File allocation errors will occur. Name of virus : DIR-2 : CREEPING DEATH,FAT Status : COMMON Discovery : SEPTEMBER- 1991 Origin : BULGARIA Additional information: x Disk drive clusters will be lost. Program files will be corrupted. Using CHKDSK will show that files are cross linked. Name of virus : DISCOM Status : Uncommon Discovery : NOVEMBER- 1990 Origin : UNKNOWN Additional information: b This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Name of virus : DISK KILLER : COMPUTER OGRE,DISK OGRE,OGRE Status : COMMON Discovery : APRIL- 1989 Origin : TAIWAN Additional information: Bad blocks will show up on the hard drive. Messages will be displayed on the monitor. Changes are made to the boot sector of the hard disk. This virus stays resident in memory. The disk will be encrypted and all information will be inaccessible. Name of virus : DM : DM-400,DM 1.01,DM 1.05,DM-330 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. The virus code will be displayed on the monitor. Name of virus : DO-NOTHING : THE STUPID VIRUS,NOTHING Status : EXTINCT Discovery : OCTOBER- 1989 Origin : ISRAEL Additional information: Y There will be an increase in length of .COM files. This virus stays resident in memory. Name of virus : DODO : BIRDIE Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : DOOM II Status : Uncommon Discovery : MAY- 1991 Origin : TAIWAN Size : 252 BYTES Additional information: o There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Name of virus : DOOM II-B Status : Uncommon Discovery : MAY- 1991 Origin : UNITED STATES Size : 252 BYTES Additional information: f There will be an increase in length of .COM and .EXE files. The system will halt requiring a reboot. Name of virus : DOT KILLER : 944,POINT KILLER,DOT EATER Status : Uncommon Discovery : OCTOBER- 1990 Origin : KOSZALIN Additional information: g There will be an increase in the length of .COM file. The monitor will have all the periods delelted. Name of virus : DUTCH 555 : 555,QUIT-1992 Status : COMMON Discovery : NOVEMBER- 1990 Origin : NETHERLANDS Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : DUTCH TINY : DUTCH TINY-124,DUTCH TINY-124B,DUTCH TINY-126 : TINY-124,TINY-124B,TINY-126,D-TINY Status : Uncommon Discovery : OCTOBER- 1991 Origin : NETHERLANDS Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Unexpected write protect errors will be encountered. Program error messages will be displayed on the screen. System will halt requiring re-boot of the system. Name of virus : EAR Status : NEW Discovery : MAY- 1992 Origin : UNITED STATES Additional information: There will be an increase in length of .COM and .EXE files. Message will appear indicating error writing to device AUX. The user will be quizzed about ears. Name of virus : EDCL : EDCT Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : EDV : CURSY,STEALTH VIRUS Status : COMMON Discovery : -1988 Origin : FRANCE Additional information: Changes are made to the boot sector of the hard disk. The data in the partition table will be corrupted. System will crash for no apparent reason. Name of virus : EIGHT TUNES : 1971 Status : Uncommon Discovery : APRIL- 1990 Origin : WEST GERMANY Additional information: There will be an increase in length of files. Music will be heard coming from the system speaker. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : EINSTEIN Status : Uncommon Discovery : OCTOBER- 1991 Origin : UNKNOWN Additional information: Y There will be an increase in length of .EXE files. This virus stays resident in memory. Name of virus : ELIZA Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : EMF Status : Uncommon Discovery : MARCH- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : EMMIE Status : NEW Discovery : MAY- 1992 Origin : ISRAEL Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Some characters may be repeated as you type. File allocation errors will occur. Name of virus : ENEMY Status : Uncommon Discovery : MARCH- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : ENIGMA : CRACKER JACK Status : Uncommon Discovery : FEBRUARY- 1991 Origin : ITALY Additional information: 4 There will be an increase in length of .EXE files. Name of virus : ENOLA Status : NEW Discovery : JUNE- 1992 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. System will reboot at random times. System will halt requiring re-boot of the system. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : ERASMUS : ST. REMI Status : Uncommon Discovery : MAY- 1991 Origin : ITALY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will reboot at random times. Name of virus : ERROR Status : Uncommon Discovery : OCTOBER- 1991 Origin : ARGENTINA Additional information: There will be an increase in length of .EXE files. Changes will occur to file date and/or time. Messages will be displayed on the monitor. Name of virus : ETC : E.T.C. Status : Uncommon Discovery : MAY- 1991 Origin : BULGARIA Additional information: 4 There will be an increase in length of .COM files. Name of virus : EUROPE-92 : E-92,DUTCH 424,EUROPE-92B,EUROPE-1992 Status : Uncommon Discovery : AUGUST- 1991 Origin : EUROPE Additional information: J There will be an increase in the length of .COM file. This virus stays resident in memory. System will halt requiring re-boot of the system. The system will not boot. The monitor will display various messages. The monitor will display an INVALID DRIVE SPECIFICATION message. A beeping sound and occasional message are displayed. Name of virus : EVIL : P1,V1701NEW,LIVE AFTER DEATH 3 Status : Uncommon Discovery : JULY- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. System will reboot at random times. The CHKDSK program will not work properly. There will be a change in the COMMAND.COM header. Name of virus : EVIL EMPIRE : EVIL EMPIRE-A Status : COMMON Discovery : APRIL- 1991 Origin : ALBERTA Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : EVIL EMPIRE-B : EMPIRE Status : COMMON Discovery : APRIL- 1991 Origin : ALBERTA Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : EXPLODE Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: ".COM" files will be corrupted or overwritten with new data. Program files will be corrupted. Changes will occur to file date and/or time. Messages will be displayed on the monitor and hard disk cylinder 0 will be overwritten. The system will not boot. Name of virus : EXUNT Status : NEW Discovery : JULY- 1992 Origin : UNKNOWN Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : F-WORD : FUCK YOU,F-YOU,417 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : FATHER CHRISTMAS : CHOINKA Status : Uncommon Discovery : NOVEMBER- 1990 Origin : POLAND Additional information: There will be an increase in the length of .COM file. Disk drive clusters will be lost. Using CHKDSK will show that files are cross linked. Monitor will display various graphics. Name of virus : FEIST Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Changes will occur to file date and/or time. Random errors will be encountered. Name of virus : FELLOWSHIP : 1022,BETTER WORLD,FELLOW Status : Uncommon Discovery : JULY- 1990 Origin : MALAYSIA Additional information: b This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Name of virus : FGT Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: \ There will be an increase in length of .COM files. The CMOS information will be wiped out. Name of virus : FICH : FICHV,CHV 2.1,903 Status : COMMON Discovery : JANUARY- 1991 Origin : FRANCE Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. System will halt requiring re-boot of the system. Files on the hard disk will be overwritten. Name of virus : FICHV-896 : FICH Status : Uncommon Discovery : FEBRUARY- 1992 Origin : FRANCE Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. Files on the hard disk will be overwritten. Name of virus : FIL Status : Uncommon Discovery : MARCH- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Data files will be corrupted. Name of virus : FILLER Status : Uncommon Discovery : -1991 Origin : HUNGARY Additional information: Changes are made to the boot sector of the hard disk. The data in the partition table will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : FINGERS : V08-15,KEZB Status : Uncommon Discovery : MAY- 1991 Origin : GERMANY Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Messages will be displayed on the monitor. System will halt requiring re-boot of the system. Name of virus : FINNISH-709 : 709,EC-709,EG-709,SWEDISH 709 Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : FINLAND Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : FISH : EUROPEAN FISH VIRUSES,FISH 6,STEALTH VIRUS Status : Uncommon Discovery : MAY- 1990 Origin : WEST GERMANY Additional information: There will be an increase in length of .COM and .EXE files accompanied by flickering of the display. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : FISH BOOT : CHINESE FISH Status : Uncommon Discovery : MARCH- 1992 Origin : TAIWAN Additional information: The floppy disk will be corrupted after booting. The data in the partition table will be corrupted. System will halt requiring re-boot of the system. Messages will be displayed on the monitor. Programs will fail to execute properly. Name of virus : FLASH Status : Uncommon Discovery : JULY- 1990 Origin : WEST GERMANY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The monitor will appear to flicker. Name of virus : FLIP : FLIP-2343,FLIP-2153,FLIP-2153B,FLIP-2153C Status : COMMON Discovery : JULY- 1990 Origin : SWITZERLAND Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes are made to the boot sector of the hard disk. File allocation errors will occur. Name of virus : FLOWER : 880 Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .EXE files. Name of virus : FORGER Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: Y There will be an increase in length of .EXE files. This virus stays resident in memory. Name of virus : FORM-VIRUS : FORM,FORM BOOT,FORM-18 Status : COMMON Discovery : JUNE- 1990 Origin : SWITZERLAND Additional information: 7 Changes are made to the boot sector of the hard disk. 5 Clicking sounds can be heard on the system speaker. Name of virus : FREEW-692 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : FRERE JACQUES : FRERE VIRUS,FRERE JACQUES-B,FRERE JACQUES-C : FRERE JACQUES-D,TWO TIGERS Status : Uncommon Discovery : MAY- 1990 Origin : CALIFORNIA Size : 1808-1822 BYTES Additional information: There will be an increase in length of .COM and .EXE files. The amount of free memory and total system memory will decrease. System will halt requiring re-boot of the system. On Fridays the tune Frere Jaques wil be played on the system speaker. Name of virus : FRIDAY THE 13TH COM : MIAMI,SOUTH AFRICAN,512 VIRUS,VIRUS B Status : Uncommon Discovery : NOVEMBER- 1987 Origin : REPUBLIC OF SOUTH AFRICA Additional information: There will be an increase in the length of .COM file. Drives will be accessed when not expected. The files on the disk will be deleted. Name of virus : FRIENDS Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : FROG'S ALLEY : FROG,FROGS Status : Uncommon Discovery : MARCH- 1991 Origin : UNITED STATES Additional information: There will be an increase in the length of .COM files accompanied by a message. The FAT and the directory will be corrupted. Programs will be deleted. There will be changes to the disk volume label. Programs will take a long time to load and execute. Name of virus : FU MANCHU : 2080,2086,FU MANCHU-B Status : Uncommon Discovery : MARCH- 1988 Additional information: t There will be an increase in length of .COM, .EXE, .SYS and .BIN files. Messages will be displayed on the monitor. Name of virus : FUNGUS : X-FUNGUS Status : NEW Discovery : MAY- 1992 Origin : AUSTRALIA Additional information: There will be an increase in length of .COM and .EXE files. File allocation errors will occur. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : GENERIC : N/A,N/A,N/A,N/A,N/A,G - GENERIC Status : G - GENERIC Discovery : - Name of virus : GENERIC BOOT : N/A,N/A,N/A,N/A,N/A,N/A,GBX Status : GBX Discovery : - Name of virus : GERGANA : GERGANA II,GERGANA III,GERGANA IV,GERGANA-222 : GERGANA-300,GERGANA-450,GERGANA-512,GERGANA-182B Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : GHOSTBALLS : GHOST BOOT,GHOST COM,GHOSTBALLS.1 Status : EXTINCT Discovery : OCTOBER- 1989 Origin : ICELAND Additional information: The monitor will show a moving graphic display. There will be an increase in length of .COM files. Files will be corrupted. Changes are made to the boot sector of the hard disk. Name of virus : GLISS Status : Uncommon Discovery : JANUARY- 1992 Origin : GERMANY Additional information: _ There will be an increase in length of .COM files. Messages will be displayed on the monitor. Name of virus : GNOSE : IRISH3,V-20 Status : NEW Discovery : MAY- 1992 Origin : IRELAND Additional information: There will be an increase in length of .COM files. Hidden files will be created. Unexpected write protect errors will be encountered. This virus stays resident in memory. Name of virus : GOBLIN : CRACKER JACK Status : RESEARCH Discovery : MAY- 1991 Origin : ITALY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Messages will be displayed on the monitor and programs may be deleted on Fridays. Name of virus : GOSIA Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: 4 There will be an increase in length of .COM files. Name of virus : GOT-YOU Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : BELGIUM Additional information: There will be an increase in length of .EXE files. Hidden files will be created. Changes are made to the printer setup files. The redirection of the network printer will be canceled. Screen printing will occur on a random basis. Inability to access the last disk drive. Name of virus : GOTCHA : GOTCHA-A,GOTCHA-A2,GOTCHA-B,GOTCHA-B,GOTCHA-627 : GOTCHA-906,GOTCHA-E Status : Uncommon Discovery : JULY- 1991 Origin : THE NETHERLANDS Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Unexpected write protect errors will be encountered. Name of virus : GRAPJE : 1012 + 27,1039,DUTCH 1039 Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : THE NETHERLANDS Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Display special effects will be encountered. Programs will take a long time to load and execute. Name of virus : GREEN PEACE Status : RESEARCH Discovery : APRIL- 1991 Origin : UNITED STATES Additional information: EXE files will be corrupted or overwritten. Messages will be displayed on the monitor. System will halt requiring re-boot of the system. New files are created on the disk. Changes will occur to file date and/or time. Name of virus : GREMLIN : GREEMLIN Status : Uncommon Discovery : MAY- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. System will run very slowly. Changes will occur to file date and/or time. Name of virus : GRITCHER : VIENNA 774 Status : Uncommon Discovery : JANUARY- 1991 Origin : UNITED STATES Additional information: _ There will be an increase in the length of .COM file. The drives C: and D: will be corrupted. Name of virus : GROEN LINKS : GREEN LEFT Status : Uncommon Discovery : MARCH- 1990 Origin : AMSTERDAM Size : 1888 BYTES Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Music will be heard coming from the system speaker. Name of virus : GROOVE Status : NEW Discovery : JUNE- 1992 Origin : GERMANY Additional information: W There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. This virus will attempt to corrupt or delete antivirus program files. Changes will occur to file date and/or time. Programs will fail to execute properly. The system will not boot. Name of virus : GROWING BLOCK : JERUSALEM-1361,JERUSALEM-YELLOW Status : Uncommon Discovery : FEBRUARY- 1991 Origin : AUSTRALIA Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : GUILLON Status : Uncommon Discovery : OCTOBER- 1991 Origin : BUENOS AIRES Additional information: A Changes are made to the boot sector of the hard disk. The data in the partition table will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. FAT will be corrupted. Internal stack errors will be generated. System will halt requiring re-boot of the system. Name of virus : GUPPY Status : Uncommon Discovery : OCTOBER- 1990 Origin : UNITED STATES Additional information: This virus stays resident in memory. There will be an increase in the length of .COM file. Error messages will appear on screen. Disks will fail to boot. Name of virus : HAFENSTRASS : HAFEN Status : Uncommon Discovery : FEBRUARY- 1992 Origin : GERMANY Additional information: f There will be an increase in length of .EXE files. System will halt requiring re-boot of the system. Name of virus : HAFENSTRASS 2 Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. A picture of an ambulance with the sound of a siren will be displayed. Name of virus : HAIFA Status : COMMON Discovery : SEPTEMBER- 1991 Origin : ISRAEL Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : HALLOECHEN : HALLO Status : Uncommon Discovery : OCTOBER- 1989 Origin : WEST GERMANY Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Input from the keyboard will be garbage. Name of virus : HALLOWEEN : HAPPY HALLOWEEN Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Programs will load very slowly. Attempts to execute SCAN.EXE will cause the file to be deleted. Name of virus : HAPPY NEW YEAR : HAPPY N.Y.,V1600,1600,DEAR NINA Status : Uncommon Discovery : DECEMBER- 1989 Origin : BULGARIA Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. The boot sector of the floppy disk will be corrupted. The system will not boot. A message shows up saying "BAD OR MISSING COMMAND INTERPRETER". Name of virus : HARAKIRI Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: ".COM" and .EXE files will be overwritten. Changes will occur to file date and/or time. Messages will be displayed on the monitor. Name of virus : HARY ANTO : HARY Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. Changes will occur to file date and/or time. Messages will be displayed on the monitor. Name of virus : HASTINGS Status : Uncommon Discovery : DECEMBER- 1991 Additional information: v ".COM" files will be corrupted. Changes will occur to file date and/or time. ".COM" files will not execute properly. Name of virus : HELL : YEAR-6545,HELL-892,PIXEL-897,PIXEL-899 : PIXEL-899B,PIXEL-905 Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : HELLRAISER Status : NEW Discovery : MAY- 1992 Origin : CANADA Additional information: U EXE files will be corrupted or overwritten. Programs will fail to execute properly. Name of virus : HELLWEEN : 1376 Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : HERO Status : Uncommon Discovery : MAY- 1991 Origin : ITALY Additional information: There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Program files will be corrupted. Name of virus : HERO-394 : HERO-B Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. The monitor will display random characters. System will halt requiring re-boot of the system. Changes will occur to file date and/or time. Name of virus : HH&H : GOMB,GMB Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : HITCHCOCK Status : Uncommon Discovery : JULY- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. Music will be heard coming from the system speaker. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : HIV : IVL-1 Status : RESEARCH Discovery : MARCH- 1991 Origin : ITALY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : HOLLAND GIRL : SYLVIA Status : Uncommon Discovery : DECEMBER- 1989 Origin : NETHERLANDS Additional information: \ There will be an increase in the length of .COM file. This virus stays resident in memory. Name of virus : HOLLAND GIRL 2 : SYLVIA 2 Status : Uncommon Discovery : JANUARY- 1991 Origin : NEW BRUNSWICK Size : 1332 BYTES Additional information: 7 There will be an increase in the length of .COM file. Name of virus : HOLOCAUST : STEALTH,HOLO Status : Uncommon Discovery : DECEMBER- 1990 Origin : BARCELONA Size : 3784 BYTES Additional information: Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File allocation errors will occur. Name of virus : HOMINY Status : Uncommon Discovery : APRIL- 1992 Origin : AUSTRALIA Additional information: 4 There will be an increase in length of .COM files. Name of virus : HORROR Status : NEW Discovery : JUNE- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : HORSE BOOT : HORSE BOOT DROPPER Status : Uncommon Discovery : MAY- 1991 Origin : BULGARIA Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The hard disk partition table will be corrupted. Files on the disk will be corrupted. Name of virus : HUNGARIAN Status : Uncommon Discovery : JANUARY- 1992 Origin : HUNGARY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : HUNGARIAN 482 Status : Uncommon Discovery : JUNE- 1991 Origin : HUNGARY Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. Running CHKDSK will not show a decrease in the amount of free memory and total system memory. Name of virus : HYBRYD : HYBRID Status : Uncommon Discovery : JANUARY- 1991 Origin : POLAND Additional information: 7 There will be an increase in the length of .COM file. Name of virus : HYDRA FAMILY : HYDRA,HYDRA-0,HYDRA-1,HYDRA-3,HYDRA-4,HYDRA-5 : HYDRA-6,HYDRA-7,HYDRA-8,HYDRA-8 TROJAN Status : Uncommon Discovery : DECEMBER- 1991 Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Messages will be displayed on the monitor. Random errors will be encountered. Programs will fail to execute properly. System will halt requiring re-boot of the system. Name of virus : HYMN Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : I-B : BADGUY,BADGUY 2,CRACKPOT,DEMON,EXTERMINATOR Status : Uncommon Discovery : MAY- 1991 Origin : ITALY Additional information: ".COM" files will be corrupted or overwritten with new data. System will halt requiring re-boot of the system. Corruption of the hard disk will occur. Messages will be displayed on the monitor. Changes will occur to file date and/or time. Name of virus : I11 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: } There will be an increase in length of .COM files. Messages will be displayed on the monitor accompanied by beeping sounds. Name of virus : ICELANDIC : 656,ONE IN TEN,DISK CRUNCHING VIRUS,SARATOGA 2 : ICELAND Status : EXTINCT Discovery : JUNE- 1989 Origin : ICELAND Additional information: There will be an increase in length of .EXE files. A memory resident virus which infects .COM files. Bad sectors show up on hard drive. The FAT will be corrupted. Name of virus : ICELANDIC III : DECEMBER 24TH Status : ENDANGERED Discovery : DECEMBER- 1989 Origin : ICELAND Additional information: There will be an increase in length of .EXE files. A memory resident virus which infects .COM files. Bad sectors show up on hard drive. The FAT will be corrupted. A message is displayed on the screen on December 24. Name of virus : ICELANDIC-II : SYSTEM VIRUS,ONE IN TEN Status : EXTINCT Discovery : JULY- 1989 Origin : ICELAND Additional information: There will be an increase in length of .EXE files. A memory resident virus which infects .COM files. The FAT will be corrupted. A message is displayed on the screen on December 24. Read only attributes will be lost. Name of virus : IDLE Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. System will reboot at random times. Name of virus : IKV 528 : IKV-512,VIENNA-528 Status : Uncommon Discovery : JANUARY- 1991 Origin : UNKNOWN Additional information: = There will be an increase in length of .COM and .EXE files. Name of virus : INCOM Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : INFINITY Status : Uncommon Discovery : JANUARY- 1992 Origin : CANADA Additional information: 4 There will be an increase in length of .COM files. Name of virus : INTERCEPTOR : 1014 Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : ITALY Additional information: 4 There will be an increase in length of .COM files. Name of virus : INTRUDER : INTRUDER-B Status : Uncommon Discovery : MARCH- 1992 Origin : UNITED STATES Additional information: f There will be an increase in length of .EXE files. System will halt requiring re-boot of the system. Name of virus : INVADER : PLASTIQUE BOOT,MOZART,SLEDGE HAMMER,CHINESE INVADER : ANTICAD 4 Status : COMMON Discovery : SEPTEMBER- 1990 Origin : TAIWAN/CHINA Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Changes are made to the boot sector of the hard disk. Music will be heard coming from the system speaker. The data on track 1 of the hard drive may be overwritten. Name of virus : INVOL Status : COMMON Discovery : OCTOBER- 1991 Origin : UNITED STATES Additional information: There will be an increase in the length of .EXE and .SYS files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Unexpected write protect errors will be encountered. Changes will occur to file date and/or time. Name of virus : IRAQUI WARRIOR : IRAQUI,VIENNA-IRAQUI Status : Uncommon Discovery : JANUARY- 1991 Origin : UNITED STATES Additional information: There will be an increase in the length of .COM files accompanied by beeping on system speaker. System will halt requiring re-boot of the system. The system will not boot. Name of virus : ITALIAN 803 : ITALIAN FILE,V817,SEPT 18 Status : Uncommon Discovery : MARCH- 1991 Origin : ITALY Additional information: = There will be an increase in length of .COM and .EXE files. Name of virus : ITALIAN PEST : PEST Status : RESEARCH Discovery : MAY- 1991 Origin : ITALY Additional information: There will be an increase in length of .EXE files. Messages will be displayed on the monitor. System will halt requiring re-boot of the system. System will halt requiring re-boot of the system. Programs will be deleted. Name of virus : ITAVIR : 3880 Status : ENDANGERED Discovery : MARCH- 1990 Origin : ITALY Additional information: There will be an increase in length of .EXE files. There will be an increase in the length of .COM file. Changes are made to the boot sector of the hard disk. Name of virus : ITTI : ITTI-A Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: ".COM" files will be corrupted. The system will not boot. EXE programs will not execute properly. System will halt requiring re-boot of the system. Name of virus : JD : JD-158,JD-276,JD-356,JD-392 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : JEFF : JUNE 7 Status : Uncommon Discovery : DECEMBER- 1990 Origin : UNITED STATES Additional information: c There will be an increase in the length of .COM file. Files on the hard disk will be overwritten. Name of virus : JERK : TALENTLESS JERK,SUPERHACKER,1077,JERK-B Status : Uncommon Discovery : MARCH- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Messages will be displayed on the monitor. Drives will be accessed when not expected. Name of virus : JERUSALEM : PLO,ISRAELI,FRIDAY 13TH,RUSSIAN,1813 : 1808,ARAB STAR,BLACK BOX,BLACK WINDOW : HEBREW UNIVERSITY Status : COMMON Discovery : OCTOBER- 1987 Origin : ITALY Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. System will run very slowly. Files will be deleted on Friday the 13th. Screen will show a black box or window. Name of virus : JERUSALEM 11-30 : 1130 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Changes will occur to file date and/or time. The monitor will display various messages. Name of virus : JERUSALEM 1767 Status : RESEARCH Discovery : OCTOBER- 1991 Origin : NEW ZEALAND Additional information: b This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Name of virus : JOJO Status : Uncommon Discovery : MAY- 1990 Origin : ISRAEL Additional information: There will be an increase in the length of .COM file. System will halt requiring re-boot of the system. Monitor will display various graphics. Name of virus : JOJO 2 Status : Uncommon Discovery : JANUARY- 1991 Origin : UNITED STATES Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor. A message will be displayed indicating there is not enough memory. System will halt requiring re-boot of the system. The position of the cursor will be off by one character. Name of virus : JOKER : JOCKER Status : EXTINCT Discovery : DECEMBER- 1989 Origin : POLAND Additional information: l Messages will be displayed on the monitor. There will be an increase in the length of .EXE and .DBF files. Name of virus : JOKER 2 : JOKER-01 Status : Uncommon Discovery : MAY- 1991 Origin : UNKNOWN Size : 233 BYTES Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : JOSHI : HAPPY BIRTHDAY JOSHI,STEALTH VIRUS Status : COMMON Discovery : JUNE- 1990 Origin : INDIA Additional information: ` Changes are made to the boot sector of the hard disk. The system will halt requiring a reboot. Name of virus : JULY 13TH Status : ENDANGERED Discovery : APRIL- 1990 Origin : MADRID Size : 1201 BYTES Additional information: m There will be an increase in length of .EXE files. Display special effects will be encountered on Jul 13th. Name of virus : JUNE 16TH : PRETORIA Status : JUNE Discovery : ENDANGERED-APRIL Origin : .COM FILE GROWTH; LONG DISK ACCESSES; JUNE 16TH FAT ALTERATION " Size : 879 BYTES Additional information: Name of virus : JW2 : 812,JABBERWOCKY Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : UNKNOWN Additional information: b There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Name of virus : KALAH Status : Uncommon Discovery : DECEMBER- 1991 Origin : HAMBURG Size : 390 BYTES Additional information: 4 There will be an increase in length of .COM files. Name of virus : KAMASYA Status : RESEARCH Discovery : MARCH- 1991 Origin : ITALY Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Messages will be displayed on the monitor. Name of virus : KAMIKAZI : KAMIKAZE Status : ENDANGERED Discovery : AUGUST- 1990 Origin : BULGARIA Additional information: x Program files will be corrupted. System will halt requiring re-boot of the system. System will reboot at random times. Name of virus : KARIN : REDSTAR Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : GERMANY Additional information: _ There will be an increase in length of .COM files. Messages will be displayed on the monitor. Name of virus : KEMEROVO : USSR 257,KEMEROVO-B,KEME,USSR-257,KEMEROVO-C : V257,KEMEROV Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor indicating a PATH NOT FOUND error. Changes will occur to file date and/or time. Name of virus : KENNEDY : DEAD KENNEDY,333,KENNEDY-333 Status : ENDANGERED Discovery : APRIL- 1990 Origin : DENMARK Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor on specific dates. Using CHKDSK will show that files are cross linked. Disk drive clusters will be lost. Name of virus : KEYBOARD BUG : KEYBOARD BUG-1596,KBUG Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Keyboard input problems will be encountered. Name of virus : KEYDROP : KEYDROP DROPPER Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: Changes are made to the boot sector of the hard disk. The data in the partition table will be corrupted. The keyboard buffer will lose some characters. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Files will be corrupted. Name of virus : KEYPRESS : PEACH,SAMSOFT,ST. LEOS,TURKU,KEYPRESS-VIRING : VIRING Status : COMMON Discovery : OCTOBER- 1990 Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Keyboard input problems will be encountered. Changes will occur to file date and/or time. Name of virus : KIEV 483 : 483,KIEV Status : Uncommon Discovery : MAY- 1991 Origin : USSR Additional information: 4 There will be an increase in length of .COM files. Name of virus : KIT Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : KLAEREN : HATE Status : Uncommon Discovery : JUNE- 1991 Origin : ITALY Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. System will run very slowly. Name of virus : KOREA : LBC BOOT Status : COMMON - KOREA Discovery : MARCH- 1990 Origin : SEOUL Additional information: 4 Changes are made to boot sectors of floppies only. Name of virus : KRIVMOUS Status : NEW Discovery : JUNE- 1992 Origin : BULGARIA Additional information: There will be an increase in length of .COM and .EXE files. Messages will be displayed on the monitor. System will halt requiring re-boot of the system. Name of virus : KUKU-448 : KU-448 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Files may be overwritten with new data. Messages will be displayed on the monitor. Name of virus : LABEL : INT13 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: Program files will be corrupted. Files may be overwritten with new data. The system response to DIR commands will be very slow. Messages will be displayed on the monitor indicating a SECTOR NOT FOUND error. Name of virus : LANCS : LANCSPOLY,LANCS-5476 Status : NEW Discovery : JUNE- 1992 Origin : UNKNOWN Additional information: U New .COM files will be created. Programs will take a long time to load and execute. Name of virus : LAZY Status : Uncommon Discovery : FEBRUARY- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. System will run very slowly. Screen redraws will be very slow. System will halt requiring re-boot of the system. Name of virus : LEECH : LEECH2,TOPLER Status : Uncommon Discovery : MAY- 1991 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : LEGALIZE Status : Uncommon Discovery : MAY- 1992 Origin : THE NETHERLANDS Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Programs will fail to execute properly. Name of virus : LEHIGH : LEHIGH UNIVERSITY Status : COMMON Discovery : NOVEMBER- 1987 Origin : PENNSYLVANIA Additional information: e Both boot sector and fat table will be corrupted. System will halt requiring re-boot of the system. Name of virus : LEPROSY : LEPROSY 1.00,NEWS FLASH Status : Uncommon Discovery : AUGUST- 1990 Origin : CALIFORNIA Size : 666 BYTES Additional information: C Unexpected messages will appear. Program files will be corrupted. Name of virus : LEPROSY-3 : LEPROSY-C,LEPROSY-D Status : Uncommon Discovery : MAY- 1991 Origin : UNITED STATES Additional information: U ".COM" and .EXE files will be corrupted. Drives will be accessed when not expected. Name of virus : LIBERTY : LIBERTY-A,LIBERTY-B,LIBERTY-C,LIBERTY-D : LIBERTY-E,LIBERTY-F,LIBERTY-G,LIBERTY-H : LIBERTY-I,LIBERTY-J Status : COMMON Discovery : MAY- 1990 Origin : SYDNEY Additional information: There will be an increase in length of .COM, .EXE and .OVL files. Changes are made to the boot sector of the hard disk. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : LIBERTY-1172 : LIB1172 Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : LIBERTY-2 : LIBERTY-2A,LIBERTY-2B,LIBERTY-2C Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : SYDNEY Size : 2869 - 2883 BYTES Additional information: 6 There will be an increase in length of .COM, .EXE and .OVL files. Changes are made to the boot sector of the hard disk. Changes will occur to file date and/or time. Drives will be accessed when not expected. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : LISBON Status : Uncommon Discovery : NOVEMBER- 1989 Origin : LISBON Size : 648 BYTES Additional information: P There will be an increase in the length of .COM file. Files will be corrupted. Name of virus : LITTLE BROTHER Status : Uncommon Discovery : OCTOBER- 1991 Origin : THE NETHERLANDS Additional information: Name of virus : LITTLE GIRL : LITTLE GIRL 2.0 Status : NEW Discovery : JUNE- 1992 Origin : CALIFORNIA Size : 1008 BYTES Additional information: W There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Unexpected write protect errors will be encountered. Corruption of the hard disk will occur. Messages will be displayed on the monitor. Name of virus : LITTLE PIECES : 1374,PIECES Status : Uncommon Discovery : JANUARY- 1991 Origin : ITALY Additional information: # There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Messages will be displayed on the monitor. System will halt requiring re-boot of the system. The screen contents will disappear. Name of virus : LOA DUONG : LAO DUONG Status : COMMON Discovery : MAY- 1991 Origin : THAILAND Additional information: Changes are made to the boot sector of the hard disk. Corruption of the hard disk will occur. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Music will be heard coming from the system speaker. DIR command will not work properly. Name of virus : LOCKUP : LK Status : NEW Discovery : MAY- 1992 Origin : SWEDEN Additional information: Hidden files will be created. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Divide overflow errors will occur. Name of virus : LOWERCASE : LOWERCASE-B,LCV Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : UNKNOWN Additional information: c There will be an increase in length of .COM files. The letters IBM are changed to lower case ibm. Name of virus : LOZINSKY : LOZINSKY-1018,LOZINSKY-1023B Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : LUCIFER Status : Uncommon Discovery : MAY- 1991 Origin : ITALY Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : LZ : NOON BEEP Status : Uncommon Discovery : JANUARY- 1992 Origin : THE NETHERLANDS Additional information: ! New .COM files will be created. Name of virus : M.I.R. : MIR Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: 9 There will be an increase in length of .COM and .EXE files. Changes are made to the boot sector of the hard disk. SYS files will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The system will not boot. Sytem date and/or time will be corrupted. Name of virus : MACEDONIA Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : MAGNITOGORSK 2048 Status : Uncommon Discovery : MAY- 1991 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MALAGA Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The system will not boot. Name of virus : MALAISE : V-IVL110 Status : NEW Discovery : JUNE- 1992 Origin : FRANCE Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MALTESE AMOEBA : IRISH,MALTESE Status : COMMON Discovery : SEPTEMBER- 1991 Origin : MALTA Additional information: 2 There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Files on the disk will be corrupted. The display will flash constantly. System will fail to boot and Messages will be displayed on the monitor. Name of virus : MANNEQUIN Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The printing function does not work properly. Name of virus : MANOLA Status : Uncommon Discovery : JANUARY- 1992 Origin : SPAIN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MANTA Status : Uncommon Discovery : JULY- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Autoexec.BAT and Config.SYS files are replaced with new files. Programs will fail to execute properly. Name of virus : MARAUDER Status : Uncommon Discovery : JANUARY- 1992 Origin : CANADA Additional information: \ There will be an increase in length of .COM files. Files may be overwritten with new data. Name of virus : MARDI BROS Status : Uncommon Discovery : JULY- 1990 Origin : FRANCE Additional information: Changes are made to the boot sector of the hard disk. The disk volume label will be changed. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MARL Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : MAX Status : NEW Discovery : JUNE- 1992 Origin : BUENOS AIRES Additional information: Changes are made to the boot sector of the hard disk. The data in the partition table will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MAYAK Status : NEW Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM, .EXE, and .SYS files. System will run very slowly. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : MG Status : Uncommon Discovery : SEPTEMBER- 1990 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. DIR command will not work properly. File allocation errors will occur. System will halt requiring re-boot of the system. Name of virus : MG-2 : MG-3,MG-3B Status : Uncommon Discovery : DECEMBER- 1990 Origin : BULGARIA Additional information: { There will be an increase in length of .COM files. File allocation errors will occur. DIR command will not work properly. Name of virus : MGTU Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM files. Drives will be accessed when not expected. Changes will occur to file date and/or time. Messages will be displayed on the monitor indicating a PATH NOT FOUND error. Name of virus : MICHELANGELO Status : COMMON Discovery : APRIL- 1991 Origin : SWEDEN OR THE NETHERLANDS Additional information: The disk directory will be corrupted. The hard disk will be formatted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MICRO 128 : TINY-128,M-128 Status : Uncommon Discovery : AUGUST- 1991 Origin : UNKNOWN Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : MICROBES Status : COMMON Discovery : JUNE- 1990 Origin : BOMBAY Additional information: 7 Changes are made to the boot sector of the hard disk. Name of virus : MICROELEPHANT : CSL,MICROELEPHANT V6 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : EASTERN EUROPE Additional information: j There will be an increase in length of .COM files. A message shows up saying "BAD COMMAND OR FILE NAME". Name of virus : MICROPOX : K Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNITED STATES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Data on the hard drive will be corrupted. Name of virus : MIGRAM Status : RESEARCH Discovery : MARCH- 1991 Origin : ITALY Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MIKY Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : BOLIVIA Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Disk drive clusters will be lost. Display special effects will be encountered. Name of virus : MILENA Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MINI-45 : MINIMAL,SHORT-45,MINI-35,MINI-44,MINI-46 : MINI-97,MINI-99,MINI,TRIVIAL Status : RESEARCH Discovery : APRIL- 1991 Origin : BULGARIA Additional information: N ".COM" files will be corrupted. Changes will occur to file date and/or time. Name of virus : MINISTRY Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : MIRROR Status : Uncommon Discovery : OCTOBER- 1990 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The monitor display will be a mirrored version of what it should be. Name of virus : MIX2 Status : Uncommon Discovery : MARCH- 1991 Origin : EUROPE Additional information: There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MIXI : MIX1,MIX/1 Status : Uncommon Discovery : AUGUST- 1989 Origin : ISRAEL Additional information: This virus stays resident in memory. There will be an increase in length of .EXE files. The data in location 0:33C is the same as location 77H. Output to serial and parallel ports will be corrupted. Name of virus : MOCTEZUMAS REVENGE : CIUDADO,MOCTEZUMAS,MOCTEZUMA Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. File allocation errors will occur. The system will not boot. Name of virus : MONO : 1063 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: s There will be an increase in length of .COM files. This virus stays resident in memory. Programs will be deleted. Name of virus : MONXLA : TIME VIRUS Status : Uncommon Discovery : NOVEMBER- 1990 Origin : HUNGARY Additional information: There will be an increase in the length of .COM file. System will halt requiring re-boot of the system. Programs will fail to execute properly. Name of virus : MONXLA B : TIME B,VIENNA 535 Status : Uncommon Discovery : JANUARY- 1991 Origin : HUNGARY Additional information: P There will be an increase in the length of .COM file. Files will be corrupted. Name of virus : MOSQUITO Status : Uncommon Discovery : AUGUST- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. This virus stays resident in memory. Function keys will not operate properly. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : MPS 1.1 : MPS-OPC 1.1 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Programs will fail to execute properly. Name of virus : MPS 3.1 : MPS-OPC 3.1 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : MPS 3.2 : MPS-OPC 3.2 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : MPS 4.01 : MPS-OPC 4.01,MPC Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Changes will occur to file date and/or time. This virus stays resident in memory. Name of virus : MSHARK Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : MSTU : MSTU-531 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: = There will be an increase in length of .COM and .EXE files. Name of virus : MULE Status : Uncommon Discovery : AUGUST- 1991 Origin : THAILAND Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Screen will show a black box or window. Name of virus : MULTI-123 : BULGARIAN 123,V123,MULTI,SD-123 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Programs will load very slowly. Name of virus : MULTI-FACE : MFACE Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: 6 There will be an increase in length of .COM files. This virus stays resident in memory. Changes will occur to file date and/or time. A graphic of a smiling face will appear and characters will randomly move around the screen. Unexpected write protect errors will be encountered. System will run very slowly. Name of virus : MUMMY : MUMMY 1.2 Status : RARE EXCEPT MUMMY 2.1 WHICH IS COMMON IN USA Discovery : JANUARY- 1992 Origin : TAIWAN Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : MUNICH Status : Uncommon Discovery : MARCH- 1992 Origin : GERMANY Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. The system will not boot. Messages will be displayed on the monitor. Name of virus : MURPHY : MURPHY-1,V1277 STEALTH VIRUS Status : COMMON - BULGARIA Discovery : APRIL- 1990 Origin : SOFIA Size : 1277 BYTES Additional information: There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Random sounds will be heard coming from the system speaker. Bouncing ball graphic will be displayed on the monitor. Name of virus : MUSIC BUG : MUSIC BOOT,MUSIC BUG Status : COMMON Discovery : DECEMBER- 1990 Origin : TAIWAN Additional information: f Running CHKDSK will show a decrease in total system memory and the amount of available free memory. 5 Clicking sounds can be heard on the system speaker. Music will be heard coming from the system speaker. Disk drive clusters will be lost. Name of virus : MUTANT FAMILY : MUTANT 123,MUTANT 127,MUTANT 128,TINY MUTANT : TINY-123,TINY-127 Status : Uncommon Discovery : MAY- 1991 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. ".COM" files will be corrupted. Disks will fail to boot. Changes will occur to file date and/or time. System will halt requiring re-boot of the system. Name of virus : NAUGHTY HACKER : NAUGHTY HACKER FAMILY,HORSE Status : Uncommon Discovery : APRIL- 1991 Origin : SOFIA Size : 1154 OR 1160 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File allocation errors will occur. Clicking and buzzing sounds come from the speaker on the system. Name of virus : NEWCOM Status : Uncommon Discovery : JULY- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : NINA Status : Uncommon Discovery : DECEMBER- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : NINES Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. The printing function does not work properly. Name of virus : NO FRILLS Status : Uncommon Discovery : APRIL- 1992 Origin : AUSTRALIA Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : NOBOCK : 440 Status : Uncommon Discovery : JANUARY- 1991 Origin : EUROPE Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor and the system will halt requiring a reboot. Name of virus : NOINT : BLOOMINGTON,LASDIRSECT,STONED III Status : COMMON Discovery : JUNE- 1991 Origin : CANADA Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. DIR command will not work properly. Name of virus : NOMENKLATURA : NOMENCLATURE,1024-B,NOMEN Status : COMMON Discovery : AUGUST- 1990 Origin : NETHERLANDS Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Messages will be displayed on the monitor indicating a SECTOR NOT FOUND error. Name of virus : NOVEMBER 17TH : 855,NOV 17 Status : Uncommon Discovery : JANUARY- 1992 Origin : ITALY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : NOWHERE MAN : CVIRUS,VMESSIAH Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: ".COM" and .EXE files will be overwritten. Messages will be displayed on the monitor. Programs will take a long time to load and execute. Programs will fail to execute properly. Name of virus : NTKC : C-23963 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Size : 963 BYTES Additional information: [ There will be an increase in length of .COM files. Monitor will display various graphics. Name of virus : NULL SET : NULL Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNITED STATES Additional information: 4 There will be an increase in length of .COM files. Name of virus : NULL-178 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Attempts are made to write to the printer. Changes will occur to file date and/or time. Name of virus : NUMBER ONE : NUMBER 1,NUMBER ONE-B,NUMBER ONE-ARGENTINA Status : EXTINCT Discovery : -1987 Origin : WEST GERMANY Additional information: T ".COM" files will not execute properly. The monitor will display various messages. Name of virus : OHIO Status : COMMON Discovery : JUNE- 1988 Origin : INDONESIA Additional information: i Changes are made to the boot sector of the hard disk. A memory resident virus which infects .COM files. Name of virus : OMT : 413,ONE MORE THING Status : NEW Discovery : MAY- 1992 Origin : AUSTRALIA Additional information: There will be an increase in length of .COM files. Programs will take a long time to load and execute. System will halt requiring re-boot of the system. Files on the hard disk will be overwritten after 1992. Name of virus : ONDRA Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: EXE files will be corrupted or overwritten. Program files will be corrupted. Drives will be accessed when not expected. System will halt requiring re-boot of the system. Name of virus : ONTARIO Status : COMMON Discovery : JULY- 1990 Origin : ONTARIO Size : 512 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. disk errors will appear. Name of virus : ONTARIO 730 : ONT-730 Status : Uncommon Discovery : DECEMBER- 1991 Origin : ONTARIO Size : 730 - 744 BYTES Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. The FAT and the partition table will be corrupted. Name of virus : OROPAX : MUSIC VIRUS,MUSICIAN Status : Uncommon Discovery : DECEMBER- 1989 Size : BUT USUALLY 2773 BYTES Additional information: b There will be an increase in the length of .COM file. Music will be heard on the system speaker. Name of virus : OUAKE Status : NEW Discovery : MAY- 1992 Origin : THE NETHERLANDS Additional information: u There will be an increase in length of .EXE files. The information displayed on the monitor will appear to vibrate. Name of virus : PA : 5792 Status : NEW Discovery : JUNE- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Messages will be displayed on the monitor. programs will not execute properly. Changes will occur to file date and/or time. Name of virus : PADDED Status : Uncommon Discovery : MARCH- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : PARASITE Status : Uncommon Discovery : JANUARY- 1992 Origin : CANADA Additional information: There will be an increase in length of .COM files. Messages will be displayed on the monitor accompanied by a buzzing sound. System will reboot at random times. Name of virus : PARIS Status : Uncommon Discovery : AUGUST- 1990 Origin : PARIS Size : 4909 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Programs will load very slowly. The floppy disk will be corrupted after booting. Name of virus : PARITY Status : Uncommon Discovery : DECEMBER- 1990 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. Programs will take a long time to load and execute. Intermittent parity errors will show up. Name of virus : PATH : VHP-547,VIENNA-547 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Random characters will appear on the screen. Name of virus : PATHHUNT Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : REPUBLIC OF SOUTH AFRICA Additional information: There will be an increase in length of .COM and .EXE files. Data files will be corrupted. Messages will be displayed on the monitor indicating a PATH NOT FOUND error. Program files will be corrupted. Name of virus : PATIENT : PK Status : Uncommon Discovery : FEBRUARY- 1991 Origin : UNITED STATES Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : PC FLU : FLU Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: = There will be an increase in length of .COM and .EXE files. Name of virus : PC FLU-2 : FLU-2 Status : Uncommon Discovery : JANUARY- 1992 Origin : POLAND Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. The system will halt requiring a reboot. Keyboard input problems will be encountered. Name of virus : PCBB : 1677,PC BYTE BANDIT Status : Uncommon Discovery : MARCH- 1992 Origin : SWEDEN Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. The system will not boot. Changes will occur to file date and/or time. Name of virus : PCV : PCVRSDS Status : Uncommon Discovery : JUNE- 1991 Origin : ITALY Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. The files on the disk will be deleted. File allocation errors will occur. Name of virus : PENTAGON Status : EXTINCT Discovery : JANUARY- 1988 Origin : UNITED STATES Additional information: | This virus stays resident in memory. Changes are made to boot sectors of floppies only. File allocation errors will occur. Name of virus : PERFUME : 765,4711,G-VIRUS Status : COMMON Discovery : DECEMBER- 1989 Origin : GERMANY Additional information: b There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Name of virus : PHANTOM Status : Uncommon Discovery : JANUARY- 1991 Origin : HUNGARY Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor. The display on the monitor will be shifted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : PHOENIX : P1 Status : Uncommon Discovery : JULY- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. System will reboot at random times. The CHKDSK program will not work properly. There will be a change in the COMMAND.COM header. Name of virus : PHOENIX 2000 Status : Uncommon Discovery : DECEMBER- 1991 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. EXE files will be corrupted or overwritten. This virus stays resident in memory. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : PHOENIXD : P1 Status : Uncommon Discovery : JULY- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. System will reboot at random times. The CHKDSK program will not work properly. There will be a change in the COMMAND.COM header. Name of virus : PIF : PIF PAF B V1.0 Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : PING PONG : BOUNCING BALL,BOOT,BOUNCING DOT,ITALIAN : ITALIAN-A,VERA CRUZ Status : COMMONG Discovery : MARCH- 1988 Additional information: Monitor will display various graphics. This virus stays resident in memory. Changes are made to the boot sector of the hard disk. Name of virus : PIRATE : LIMA Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : LISBON Size : 609 BYTES Additional information: p ".COM" files will be corrupted or overwritten with new data. System will halt requiring re-boot of the system. Name of virus : PISELLO : 1030 Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: Y There will be an increase in length of .EXE files. This virus stays resident in memory. Name of virus : PITCH Status : NEW Discovery : JUNE- 1992 Origin : FRANCE Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. System speaker will give off a high pitched sound. Name of virus : PIXEL : V-345 Status : ENDANGERED Discovery : -1988 Origin : GREECE Additional information: b There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Name of virus : PIXIE : PIXIE 1.0 Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNITED STATES Additional information: There will be an increase in length of .COM files. Error messages appear when accessing the disk. Changes will occur to file date and/or time. Name of virus : PLASTIQUE : PLASTIC BOMB,PLASTIQUE 3012,PLASTIQUE 1 : ANTICAD 3 Status : Uncommon Discovery : JULY- 1990 Origin : TAIWAN Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. After Sep 20th the system will appear to slow down and the sound of bomb can be heard on the system speaker. Name of virus : PLASTIQUE-B : PLASTIC BOMB,PLASTIQUE 5.21,PLASTIQUE 2 : ANTICAD 1 Status : Uncommon Discovery : JULY- 1990 Origin : TAIWAN Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Changes are made to the boot sector of the hard disk. Name of virus : PLATINUM : MUMMY 1.0 Status : Uncommon Discovery : JANUARY- 1992 Origin : TAIWAN Additional information: There will be an increase in length of .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : PLOVDIV 1.1 : SX Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: There will be an increase in length of .COM files. File allocation errors will occur. Program error messages will be displayed on the screen. Name of virus : PLOVDIV 1.3 : PLOV Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: There will be an increase in length of .COM and .EXE files. File allocation errors will occur. Program error messages will be displayed on the screen. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : POEM : ACDC Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : REPUBLIC OF SOUTH AFRICA Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Corruption of the hard disk will occur. Name of virus : POGUE Status : Uncommon Discovery : JANUARY- 1992 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Music will be heard coming from the system speaker. Name of virus : POLIMER : POLIMER TAPEWORM Status : Uncommon Discovery : NOVEMBER- 1990 Origin : HUNGARY Additional information: b There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Name of virus : POLISH 217 : 217,POLISH STUPID,V217 Status : Uncommon Discovery : OCTOBER- 1990 Origin : KOSZALIN Size : 217 BYTES Additional information: [ There will be an increase in the length of .COM file. System will reboot at random times. Name of virus : POLISH 529 : 529,P529,PITER2 Status : Uncommon Discovery : SEPTEMBER- 1990 Origin : POLAND Additional information: \ There will be an increase in the length of .COM file. This virus stays resident in memory. Name of virus : POLISH 583 : POLISH-583,VIENNA-583 Status : Uncommon Discovery : DECEMBER- 1990 Origin : POLAND Additional information: 4 There will be an increase in length of .COM files. Name of virus : POLISH-376 : V376 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : POLISH-45 : P-45 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: k ".COM" files will be corrupted or overwritten with new data. Changes will occur to file date and/or time. Name of virus : POSSESSED : POSSESSED-2443,POSSESSED 1.03A,POSSESSED 1.03B : POSSESSED 1.07,POSSESSED 1.07B,POSSESSED 1.08 Status : Uncommon Discovery : JUNE- 1991 Origin : AUSTRALIA Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Programs will be deleted. Inability to write to COM1 port. Name of virus : POSSUM Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: i ".COM" files will be corrupted or overwritten with new data. Messages will be displayed on the monitor. Name of virus : PREGNANT Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Files will be renamed to PREGNANT. Name of virus : PRINT SCREEN : EB 21,8290,PRTSC VIRUS Status : COMMON Discovery : NOVEMBER- 1989 Origin : BOMBAY Additional information: c Changes are made to the boot sector of the hard disk. Accessed to the hard disk will take longer. Name of virus : PRISM Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes are made to the boot sector of the hard disk C:. The data in the partition table will be corrupted. Name of virus : PROUD : V1302,P1 RELATED Status : Uncommon Discovery : AUGUST- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The FAT will be corrupted. Name of virus : PSYCHOGENIUS : COVER GIRL,PSYCHO Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNITED STATES Additional information: i Program files will be corrupted. Changes will occur to file date and/or time. The system will not boot. Name of virus : QMU : QQ-1513 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. The data in the partition table will be corrupted. Changes will occur to file date and/or time. A terminate and stay resident virus accompanied by a decrease of free memory and total system memory. Name of virus : QP3 : 1028,DARK AVENGER 1028 Status : Uncommon Discovery : AUGUST- 1991 Origin : UNKNOWN Additional information: Z There will be an increase in length of .COM and .EXE files. System will run very slowly. Name of virus : QUEENS : MICRO COP,QUEENSLAND Status : Uncommon Discovery : FEBRUARY- 1992 Origin : QUEENSLAND Additional information: Changes are made to the boot sector of the hard disk. The hard disk will become inaccessible. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Messages will be displayed on the monitor and the system will halt requiring a reboot. Name of virus : QUIET Status : Uncommon Discovery : JANUARY- 1992 Origin : KANSAS Size : 2048 - 2063 BYTES Additional information: Y There will be an increase in length of .COM files. This virus stays resident in memory. Name of virus : R-10 : DATARAPE-10,RAPE-10 Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : CANADA Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Files on the hard disk will be overwritten. Name of virus : R-11 : DATARAPE-11,RAPE-11 Status : Uncommon Discovery : AUGUST- 1991 Origin : CANADA Additional information: There will be an increase in length of .COM files. File allocation errors will occur. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : RAGE Status : Uncommon Discovery : NOVEMBER- 1991 Origin : CANADA Additional information: _ There will be an increase in length of .COM files. Messages will be displayed on the monitor. Name of virus : RAM VIRUS Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: There will be an increase in length of .COM and .EXE files. Screen will show a black box or window. Files will be deleted on Friday the 13th. This virus stays resident in memory. System will run very slowly. Name of virus : RAUBKOPIE : RAUBKOPI Status : Uncommon Discovery : MARCH- 1991 Origin : GERMANY Additional information: h There will be an increase in length of .COM and .EXE files. Messages will be displayed on the monitor. Name of virus : RED DIAVOLYATA : USSR 830,MLTI Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : RELZFU : 233,FAKE VIRX Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : FINLAND Additional information: There will be an increase in length of .COM files. After the system boots the message SPECIFIED COMMAND SEARCH DIRECTORY BAD will appear. Name of virus : RESET : OMEGA,FRIDAY-13TH-440 Status : Uncommon Discovery : OCTOBER- 1991 Origin : UNKNOWN Additional information: ` There will be an increase in length of .COM files. Accessed to the hard disk will take longer. Name of virus : RETURNS Status : Uncommon Discovery : APRIL- 1992 Origin : UNITED STATES Additional information: 4 There will be an increase in length of .EXE files. Name of virus : REVENGE ATTACKER : 777,REVENGE Status : Uncommon Discovery : JUNE- 1991 Origin : PHILIPINES Additional information: There will be an increase in length of .COM files. DIR command will not work properly. System will halt requiring re-boot of the system. The hard disk will be formatted. Name of virus : RMIT Status : Uncommon Discovery : JUNE- 1991 Origin : UNKNOWN Additional information: " Program files will be corrupted. Name of virus : RNA Status : Uncommon Discovery : MARCH- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. New files will be created with zero byte length. System will halt requiring re-boot of the system. Name of virus : ROCKO : RKO Status : Uncommon Discovery : APRIL- 1992 Origin : CANADA Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : ROSEN Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : RPVS : 453,TUQ Status : ENDANGERED Discovery : AUGUST- 1990 Origin : WEST GERMANY Additional information: 7 There will be an increase in the length of .COM file. Name of virus : RSP-1876 : 1876 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. A beeping sound and occasional message are displayed. Random characters will appear on the screen. System will halt requiring re-boot of the system. Name of virus : RYBKA Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Programs will fail to execute properly. The system will not boot. Name of virus : SADDAM : SADAM,PROFESOR Status : Uncommon Discovery : JANUARY- 1991 Origin : FRANCE Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Disks will fail to boot. When trying to run .BAT files you get an INSUFFICIENT MEMORY message. DIR command will not work properly. System will halt requiring re-boot of the system. Name of virus : SADIST Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: X There will be an increase in length of .EXE files. System will reboot at random times. Name of virus : SARATOGA : 642,ONE IN TWO Status : EXTINCT Discovery : JULY- 1989 Origin : CALIFORNIA Size : 642 BYTES Additional information: There will be an increase in length of .EXE files. A memory resident virus. Bad sectors show up on hard drive. The FAT will be corrupted. Name of virus : SATURDAY THE 14TH : DURBAN,SATURDAY 14TH Status : Uncommon Discovery : MARCH- 1990 Origin : REPUBLIC OF SOUTH AFRICA Additional information: This virus stays resident in memory. There will be an increase in length of .COM, .EXE and .OVL files. Boot sector will be corrupted. FAT and Partition tables will be corrupted on Saturday the 14th. Name of virus : SCOTT'S VALLEY : 2131,SCOTT'S,SLOW-2131 Status : Uncommon Discovery : SEPTEMBER- 1990 Origin : SCOTT'S VALLEY/ CALIFORNIA/ UNITED STATES Additional information: b This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Name of virus : SCREAM : FIST,SCREAMING FIST Status : RARE EXCEPT SCREAM 2-696 WHICH IS COMMON IN USA & CANADA F Discovery : FEBRUARY- 1992 Origin : CANADA Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SELF : POLISH-457,POLISH-550,SELF-457,SELF-550 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : POLAND Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : SEMTEX Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : CZECHOSLOVAKIA Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Display special effects will be encountered. Name of virus : SENTINEL : SENTINEL-3,SENTINEL-5,BC Status : Uncommon Discovery : JANUARY- 1991 Origin : BULGARIA Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Keyboard input problems will be encountered. Name of virus : SEVENTH SON : 7TH SON,SEVENTH SON-284,SEVENTH SON-350 Status : Uncommon Discovery : OCTOBER- 1991 Origin : EASTERN EUROPE Additional information: Name of virus : SHADOW : SHADOBYTE,SHADOW-2 Status : Uncommon Discovery : MAY- 1991 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : SHAKE : SHAKE DROPPER Status : Uncommon Discovery : MAY- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Changes are made to command.com and memory allocatio. Name of virus : SHAKER : PRAGUE JOKER Status : Uncommon Discovery : NOVEMBER- 1991 Origin : PRAGUE Size : 512 BYTES Additional information: There will be an increase in length of .COM files. The information displayed on the monitor will appear to vibrate. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SHHS : SH Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: | ".COM" and .EXE files will be overwritten. Messages will be displayed on the monitor. Files on the disk will be corrupted. Name of virus : SHIELD Status : Uncommon Discovery : MARCH- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Hidden files will be created. Changes will occur to file date and/or time. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : SICILIAN MOB Status : Uncommon Discovery : DECEMBER- 1991 Origin : CANADA Additional information: There will be an increase in length of .COM files. System will reboot at random times. Messages will be displayed on the monitor. Name of virus : SILLY : 200,V200 Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : SILLY-365 : PIXEL,PIXEL 877 Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: There will be an increase in length of .COM files. Programs will load very slowly. Changes will occur to file date and/or time. Name of virus : SIMULATI Status : Uncommon Discovery : JUNE- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Messages will be displayed on the monitor. System will halt requiring re-boot of the system. Changes will occur to file date and/or time. Name of virus : SISTER : SISTER-2225,PLAICE Status : Uncommon Discovery : JANUARY- 1992 Origin : SWEDEN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. The screen will show a small diamond bouncing on the screen. Name of virus : SKISM 1992 : 1992B Status : Uncommon Discovery : JANUARY- 1992 Origin : UNITED STATES Additional information: - EXE files will be corrupted or overwritten. Name of virus : SLAYER FAMILY : BRAIN SLAYER,SLAYER,YANKEE DOODLE DROPPER : VBASIC 2 Status : COMMON Discovery : MARCH- 1991 Origin : UNITED STATES Additional information: There will be an increase in length of .COM and .EXE files. Programs will take a long time to load and execute. The disk directory will be corrupted. Drives will be accessed when not expected. Name of virus : SLOVAK : SLOVAK 2.00,SLOVAKIA Status : NEW Discovery : MAY- 1992 Origin : CZECHOSLOVAKIA Additional information: _ There will be an increase in length of .EXE files. Messages will be displayed on the monitor. Name of virus : SLOW : SLOWDOWN,ZEROTIME Status : COMMON Discovery : MAY- 1990 Origin : AUSTRALIA Additional information: = There will be an increase in length of .COM and .EXE files. Name of virus : SMACK Status : RESEARCH Discovery : MAY- 1991 Origin : ITALY Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Programs will be deleted. Messages will be displayed on the monitor on Fridays. Disk drive clusters will be lost. Name of virus : SMALL-38 Status : RESEARCH Discovery : DECEMBER- 1991 Origin : CANADA Additional information: Program files will be corrupted. Changes will occur to file date and/or time. Programs will fail to execute properly. System will halt requiring re-boot of the system. Name of virus : SMILEY Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. The virus is activated each time interrupt 1 is executed. Programs will fail to execute properly. A graphic of a smiling face will appear and characters will randomly move around the screen. Name of virus : SOCHA Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : SOLANO 2000 : DYSLEXIA 2.01,SOLANO Status : Uncommon Discovery : MARCH- 1990 Origin : CALIFORNIA Size : 2000 BYTES Additional information: There will be an increase in the length of .COM file. This virus stays resident in memory. Unexpected file errors will be encountered. Name of virus : SOMETHING : SOMETHING-658 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. New files will be created. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SORRY : G-VIRUS V1.3,PERFUME-2 Status : Uncommon Discovery : JUNE- 1990 Additional information: There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SOV : SOV-545,SOV-602 Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : SPANISH Status : Uncommon Discovery : AUGUST- 1991 Origin : SPAIN Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Programs will load very slowly. Cascading letters will be displayed on the screen and the system may hang. Name of virus : SPANISH APRIL FOOLS : DECEMBER 28TH Status : Uncommon Discovery : JUNE- 1991 Origin : DELETE Additional information: There will be an increase in length of .EXE files. This virus stays resident in memory. System will halt requiring re-boot of the system. Name of virus : SPANZ Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : UNKNOWN Additional information: d There will be an increase in the length of .COM file. Changes will occur to file date and/or time. Name of virus : SPARSE : SPARSE-B Status : Uncommon Discovery : APRIL- 1991 Origin : UNKNOWN Additional information: This virus stays resident in memory. There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SPYER : FAUST,SPYER-B,SPYER-C Status : Uncommon Discovery : NOVEMBER- 1990 Origin : TAIWAN Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Name of virus : SQUAWK Status : Uncommon Discovery : MARCH- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SQUEAKER Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Attempts to execute SCAN.EXE will cause the file to be deleted. Changes will occur to file date and/or time. Name of virus : STAF : STAFF Status : Uncommon Discovery : APRIL- 1991 Origin : UNKNOWN Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Programs will fail to execute properly. Name of virus : STAHL : STAHLPLATTE Status : Uncommon Discovery : APRIL- 1992 Origin : GERMANY Additional information: 4 There will be an increase in length of .COM files. Name of virus : STARDO 801 : ITALIAN FILE Status : Uncommon Discovery : APRIL- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Corruption of the hard disk will occur. Name of virus : STARDOT 600 Status : COMMON Discovery : APRIL- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. Corruption of the hard disk will occur. Random characters will be sent to I/O ports. Name of virus : STARDOT 789 Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : UNKNOWN Additional information: o There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Name of virus : STICKY : MULTI-2,NU WAY Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. The data in the partition table will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : STIGMATA Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : STINKFOOT : STINK Status : Uncommon Discovery : NOVEMBER- 1991 Origin : REPUBLIC OF SOUTH AFRICA Additional information: f There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Name of virus : STONE '90 : POLISH 961,STONE-90 Status : Uncommon Discovery : DECEMBER- 1990 Origin : POLAND Additional information: 4 There will be an increase in length of .COM files. Name of virus : STONED : 1991 BOOT,DONALD DUCK,HAWAII,MARIJUANA : NEW ZEALAND,ROSTOV,SAN DIEGO,SEX REVOLUTION : SMITHSONIAN,STONED II,STONED-MEXICAN,STONED MUTATION Status : COMMON Discovery : FEBRUARY- 1988 Origin : NEW ZEALAND Additional information: Changes are made to the boot sector of the hard disk. This virus stays resident in memory. Messages will be displayed on the monitor. Inability to access RLL drives. Name of virus : STRIKER 1 : STRIKER,QD335 Status : Uncommon Discovery : MARCH- 1991 Origin : UNITED STATES Additional information: 7 There will be an increase in the length of .COM file. Name of virus : STUPID-1355 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. The system will not boot. Name of virus : SUBLIMINAL 1.10 Status : Uncommon Discovery : MAY- 1990 Origin : CALIFORNIA Size : 1496 BYTES Additional information: There will be an increase in the length of .COM file. This virus stays resident in memory. Unexpected file errors will be encountered. The monitor will appear to flicker. Name of virus : SUNDAY Status : COMMON Discovery : NOVEMBER- 1989 Origin : WASHINGTON Size : 1636 BYTES Additional information: This virus stays resident in memory. There will be an increase in length of .EXE files. Messages will be displayed on the monitor. The FAT will be corrupted. Name of virus : SUNDAY-2 Status : Uncommon Discovery : AUGUST- 1991 Origin : CANADA Additional information: " There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File allocation errors will occur. Messages will be displayed on the monitor. System will halt requiring re-boot of the system. Name of virus : SURIV 1.01 : APRIL 1ST,ISRAELI,SURIV01,SURIV A Status : EXTINCT Discovery : APRIL- 1987 Origin : ISRAEL Additional information: This virus stays resident in memory. There will be an increase in the length of .COM file. Messages will be displayed on the monitor. System will lock up on April 1. Name of virus : SURIV 2.01 : APRIL 1ST-B,ISRAELI,SURIV02,SURIV A Status : EXTINCT Discovery : -1987 Origin : ISRAEL Additional information: This virus stays resident in memory. There will be an increase in length of .EXE files. Messages will be displayed on the monitor. System will lock up on April 1. Name of virus : SURIV 3.00 : ISRAELI,SURIV03,SURIV B Status : EXTINCT Discovery : -1988 Origin : ISRAEL Additional information: This virus stays resident in memory. There will be an increase in length of .COM, .EXE, and .SYS files. Screen will show a black box or window. System will run very slowly. Name of virus : SURIV 4.02 Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : IRELAND Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. Executing programs will bring you back to the DOS prompt. The system will not boot. Messages will be displayed on the monitor. Name of virus : SURRENDER Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: x There will be an increase in length of .COM and .EXE files. The virus is activated each time interrupt 21 is executed. Name of virus : SVC 3.1 : USSR 1064,SVC V3.1 Status : Uncommon Discovery : MAY- 1991 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SVC 4.0 : USSR 1689,OFF STEALTH,SVC V4.0,SVC 4.0-1740 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. File allocation errors will occur. Name of virus : SVC 5.0 : USSR 3103,SVC V5.0 Status : COMMON Discovery : OCTOBER- 1991 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Program files will be corrupted. Name of virus : SVC 6.0 Status : COMMON Discovery : OCTOBER- 1991 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The data in the partition table will be corrupted. Name of virus : SVERDLOV : HYMN-2 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SVIR Status : ENDANGERED Discovery : -1990 Origin : POLAND Additional information: There will be an increase in length of .EXE files. Changes will occur to file date and/or time. System will halt requiring re-boot of the system. Name of virus : SWAP : FALLING LETTERS BOOT,ISRAELI BOOT Status : Uncommon Discovery : AUGUST- 1989 Origin : ISRAEL Additional information: Monitor will display various graphics. Changes are made to boot sectors of floppies only. A terminate and stay resident virus which generates bad clusters. Name of virus : SWEDISH BOYS : DATA MOLESTER,HEADACHE,SWEDISH,WHY WINDOWS Status : NEW Discovery : JUNE- 1992 Origin : SWEDEN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. The files on the disk will be deleted. Files on the disk will be corrupted. Name of virus : SWEDISH DISASTER Status : Uncommon Discovery : JANUARY- 1991 Origin : SWEDEN Additional information: Changes are made to the boot sector of the hard disk. The data in the partition table will be corrupted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : SWISS 143 Status : Uncommon Discovery : JANUARY- 1991 Origin : SWITZERLAND Additional information: d There will be an increase in the length of .COM file. Changes will occur to file date and/or time. Name of virus : SYSLOCK : 3551,3555,MACH0-A,ADVENT,ADVENT-B Status : ENDANGERED Discovery : NOVEMBER- 1988 Additional information: [ There will be an increase in length of .COM and .EXE files. Data files will be corrupted. Name of virus : TACK : 4-A Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. The screen will display some characters from memory. System will halt requiring re-boot of the system. Name of virus : TAIWAN : TAIWAN 2,TAIWAN-B,DOOM I,DOOM I-B Status : ENDANGERED Discovery : JANUARY- 1990 Additional information: s There will be an increase in the length of .COM file. The boot sector will be destroyed at the 8th day the month. Name of virus : TAIWAN 3 : ANTICAD 2 Status : COMMONG Discovery : JUNE- 1990 Origin : TAIWAN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : TAIWAN 4 : 2576,ANTICAD 5 Status : COMMON Discovery : OCTOBER- 1990 Origin : TAIWAN Additional information: This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. System will run very slowly. Name of virus : TELECOM : TELEFONICA,TELECOM FILE,SPANISH TELECOM-2 Status : COMMON Discovery : JUNE- 1991 Origin : SPAIN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. The hard disk will be formatted. Name of virus : TENBYTES-1514 Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: V There will be an increase in length of .COM and .EXE files. Files will be corrupted. Name of virus : TEQUILA : STEALTH Status : COMMON Discovery : APRIL- 1991 Origin : SWITZERLAND Additional information: There will be an increase in length of .EXE files. The data in the partition table will be corrupted. File allocation errors will occur. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : TERMINATOR Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. This virus stays resident in memory. Unexpected write protect errors will be encountered. Name of virus : TESTER : TESTVIR,TESTVIRUS B V1.4 Status : Uncommon Discovery : APRIL- 1991 Origin : UNITED STATES Additional information: b There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Name of virus : THE PLAGUE : PLAGUE Status : Uncommon Discovery : JANUARY- 1991 Origin : UNITED STATES Additional information: Messages will be displayed on the monitor indicating that the program is too big to fit in memory. Programs will fail to execute properly. Programs will take a long time to load and execute. Messages will be displayed on the monitor and data on the disk will be overwritten. Name of virus : THIMBLE Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. Changes will occur to file date and/or time. Name of virus : TIMID : TIMID-ORIG,TIMID-305 Status : Uncommon Discovery : DECEMBER- 1991 Origin : OREGON Size : 306 BYTES Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. System will halt requiring re-boot of the system. Programs will fail to execute properly. Name of virus : TIMOR Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: b There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Name of virus : TINY DI : TINY DI-94,TINY DI-101,TINY DI-108,TINY DI-110 : DI-94,DI-101,DI-108,DI-110 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. The system will not boot. Program files will be corrupted. Name of virus : TINY FAMILY : TINY-133,TINY-134,TINY-138,TINY-143,TINY-154 : TINY-156,TINY-158,TINY-159,TINY-160,TINY-167 : TINY-198 Status : Uncommon Discovery : JULY- 1990 Origin : BULGARIA Additional information: 4 There will be an increase in length of .COM files. Name of virus : TINY VIRUS : 163 COM VIRUS,TINY 163 VIRUS,KENNEDY-163 Status : Uncommon Discovery : JUNE- 1990 Origin : DENMARK Additional information: 7 There will be an increase in the length of .COM file. Name of virus : TOBACCO Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: b There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Name of virus : TODOR : 1993 Status : NEW Discovery : JUNE- 1992 Origin : BULGARIA Additional information: = There will be an increase in length of .COM and .EXE files. Name of virus : TOKYO Status : Uncommon Discovery : AUGUST- 1991 Origin : JAPAN Additional information: There will be an increase in length of .EXE files. System will halt requiring re-boot of the system. Programs will fail to execute properly. Name of virus : TONY Status : Uncommon Discovery : NOVEMBER- 1991 Origin : BULGARIA Additional information: 4 There will be an increase in length of .COM files. Name of virus : TONY BOOT Status : Uncommon Discovery : NOVEMBER- 1991 Origin : BULGARIA Additional information: 7 Changes are made to the boot sector of the hard disk. Name of virus : TOPO Status : Uncommon Discovery : JULY- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .EXE files. This virus stays resident in memory. Unexpected write protect errors will be encountered. Name of virus : TORMENTOR Status : Uncommon Discovery : DECEMBER- 1991 Origin : SWEDEN Additional information: There will be an increase in length of .EXE files. PAS files will be deleted. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : TORMENTOR-1072 : NUKE Status : Uncommon Discovery : DECEMBER- 1991 Origin : SWEDEN Additional information: ) There will be an increase in length of .COM and .EXE files. Changes will occur to file date and/or time. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Corruption of the hard disk will occur. Name of virus : TORMENTOR-205 Status : NEW Discovery : JULY- 1992 Origin : SWEDEN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Random errors will be encountered. Name of virus : TRACEBACK : 3066,TB Status : EXTINCT Discovery : OCTOBER- 1988 Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Monitor will display various graphics. Name of virus : TRACEBACK 3029 : TRACEBACK-4 Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Monitor will display various graphics. Name of virus : TRACEBACK II : 2930 Status : EXTINCT Discovery : OCTOBER- 1988 Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Monitor will display various graphics. Name of virus : TRAVELLER : BUPT Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNITED STATES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : TROI Status : Uncommon Discovery : MARCH- 1992 Origin : MICHIGAN Size : 322 BYTES Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Files which are supposed to be written to disk may not actually be written to disk. Keyboard input problems will be encountered. Name of virus : TULA-419 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : TUMEN V.5 Status : Uncommon Discovery : MAY- 1991 Origin : USSR Additional information: ' There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Music can be heard coming from the system speaker accompanied by graphic images on the monitor. Changes will occur to file date and/or time. Name of virus : TUMEN V1.2 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : TUMEN V2.0 Status : Uncommon Discovery : MAY- 1991 Origin : USSR Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Changes will occur to file date and/or time. Name of virus : TURBO 448 : POLISH-2,NAGYTUD Status : Uncommon Discovery : NOVEMBER- 1990 Origin : HUNGARY Additional information: Y There will be an increase in the length of .COM file. File not found errors will occur. Name of virus : TURBO KUKAC : KUKAC,TURBO KUKAC 9.9,POLISH-2 Status : Uncommon Discovery : NOVEMBER- 1990 Origin : HUNGARY Additional information: There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File not found errors will occur. Name of virus : TWIN-351 : COM 351,TWIN Status : Uncommon Discovery : JULY- 1991 Origin : EUROPE Additional information: a New .COM files will be created with new hidden attributes. This virus stays resident in memory. Name of virus : TYPO BOOT : MISTAKE Status : Uncommon Discovery : JUNE- 1989 Origin : ISRAEL Additional information: Changes are made to the boot sector of the hard disk. A memory resident virus which infects .COM files. Printouts will have their outputs scrambled. Name of virus : TYPO COM : FUMBLE,867,TYPE,712,TYPO-712 Status : EXTINCT Discovery : NOVEMBER- 1989 Origin : ENGLAND Additional information: There will be an increase in the length of .COM file. A memory resident virus which infects .COM files. Printouts will have their outputs scrambled. Name of virus : UNK Status : Uncommon Discovery : MARCH- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. Name of virus : URFYDUS Status : NEW Discovery : MAY- 1992 Origin : ITALY Additional information: b There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Name of virus : USSR Status : Uncommon Discovery : OCTOBER- 1990 Origin : USSR Additional information: There will be an increase in length of .EXE files. Corruption of the hard disk will occur. System will halt requiring re-boot of the system. Programs will take a long time to load and execute. Name of virus : USSR 1049 : RCE-1049,1049 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : USSR 2144 : V2144,2144,USSR 2144-B Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : USSR 311 : V-311,USSR-311,COM2CON Status : Uncommon Discovery : JANUARY- 1991 Origin : USSR Additional information: h There will be an increase in the length of .COM file. COMMAND.COM file will be renamed as command.coN. Name of virus : USSR 492 : USSR-492,RC492,492 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time. Name of virus : USSR 516 : LEAPFROG,V516. 516 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: 4 There will be an increase in length of .COM files. Name of virus : USSR 600 : USSR-600,V600,600 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: 4 There will be an increase in length of .COM files. Name of virus : USSR 707 : USSR-707,V707 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : USSR 711 : USSR-711,699,V711-2 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : USSR 948 : USSR-948,V948,948 Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : V-1N : V-10,V-11 Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: ".COM" files will be corrupted or overwritten with new data. Program files will be corrupted. Changes will occur to file date and/or time. Name of virus : V-3N : V-30,V-31,V-32 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: l There will be an increase in length of .COM files. The seconds field in the file time will be set to zero. Name of virus : V1024 : DARK AVENGER III,STEALTH VIRUS,DIAMOND : 1024 Status : Uncommon Discovery : MAY- 1990 Origin : BULGARIA Additional information: This virus stays resident in memory. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : V2000 : DARK AVENGER II,STEALTH VIRUS,TRAVEL VIRUS : EDDIE 2000,APOCALYPSE II Status : Uncommon Discovery : -1989 Origin : BULGARIA Additional information: This virus stays resident in memory. There will be an increase in length of .COM, .EXE and .OVL files. System will crash. Using CHKDSK will show that files are cross linked. Name of virus : V2100 : 2100,STEALTH VIRUS,USCAN VIRUS,DARK AVENGER 4 Status : Uncommon Discovery : JULY- 1990 Origin : BULGARIA Additional information: File allocation errors will occur. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : V270X : 268-PLUS Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: 4 There will be an increase in length of .COM files. Name of virus : V2P2 : CHAMELEON Status : RESEARCH Discovery : JUNE- 1990 Origin : MINNESOTA Size : 1426 - 2157 BYTES Additional information: 4 There will be an increase in length of .COM files. Name of virus : V2P6 Status : RESEARCH Discovery : JULY- 1990 Origin : MINNESOTA Size : 1946 - 2111 BYTES Additional information: 4 There will be an increase in length of .COM files. Name of virus : V483 Status : Uncommon Discovery : AUGUST- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Changes will occur to file date and/or time. Name of virus : V651 : EDDIE 3,STEALTH VIRUS,DARK AVENGER 2 Status : Uncommon Discovery : APRIL- 1990 Origin : SOFIA Size : 651 BYTES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. File allocation errors will occur. Name of virus : V800 : LIVE AFTER DEATH VIRUS Status : Uncommon Discovery : MAY- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : V801 : V791,V-801,805 Status : Uncommon Discovery : MARCH- 1991 Origin : UNITED STATES Additional information: o There will be an increase in length of .COM and .EXE files. System will halt requiring re-boot of the system. Name of virus : V82 Status : Uncommon Discovery : OCTOBER- 1991 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. EXE files will be corrupted or overwritten. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : VACSINA Status : COMMON Discovery : NOVEMBER- 1989 Origin : BULGARIA Additional information: This virus stays resident in memory. There will be an increase in length of .COM, .EXE, .SYS and .BIN files. A beeping sound and occasional message are displayed. Name of virus : VCOMM : 637,VIENNA 637 Status : Uncommon Discovery : DECEMBER- 1989 Origin : POLAND Additional information: There will be an increase in length of .EXE files. This virus stays resident in memory. failures will be encountered when writing to disks. Name of virus : VCS : VIRUS CONSTRUCTION SET Status : Uncommon Discovery : MAY- 1991 Origin : GERMANY Additional information: There will be an increase in length of .COM files. Messages will be displayed on the monitor. Autoexec.BAT and Config.SYS files are replaced with new files. Name of virus : VFSI : 437,HAPPY DAY Status : Uncommon Discovery : SEPTEMBER- 1990 Origin : BULGARIA Additional information: b There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Name of virus : VHP : VHP-348,VHP-353,VHP-367,VHP-435,VHP-757 : VHP-776 Status : RESEARCH Discovery : JULY- 1989 Origin : BULGARIA Additional information: i There will be an increase in the length of .COM file. System will halt requiring re-boot of the system. Name of virus : VHP2 : 623,VHP-623,VHP-2 Status : RESEARCH Discovery : MARCH- 1990 Origin : BULGARIA Additional information: There will be an increase in the length of .COM file. the system will halt requiring a reboot or it might reboot by itself at random times. Name of virus : VICTOR Status : Uncommon Discovery : MAY- 1990 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Data files will be corrupted. Using CHKDSK will show that files are cross linked. System will reboot at random times. Name of virus : VIENNA : AUSTRIAN,UNESCO,DOS-68,1-IN-8,648 Status : COMMON Discovery : APRIL- 1988 Origin : AUSTRAIA Additional information: There will be an increase in the length of .COM file. System will reboot at random times. System will halt requiring re-boot of the system. Name of virus : VINDICATOR Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : VIOLATOR : VIOLATOR STRAIN B,VIOLATOR BT,VIOLATOR B1 : VIOLATOR B2,VIOLATOR B2-969,VIOLATOR B3 Status : ENDANGERED Discovery : AUGUST- 1990 Origin : CANADA Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor indicating a SECTOR NOT FOUND error. Disk drives will be formatted. Name of virus : VIOLATOR B4 : CHRISTMAS VIOLATOR,VIOLATOR STRAIN B4 Status : Uncommon Discovery : DECEMBER- 1990 Origin : CANADA Additional information: _ There will be an increase in the length of .COM file. Corruption of the hard disk will occur. Name of virus : VIOLETTA Status : COMMON - GERMANY Discovery : JANUARY- 1992 Origin : GERMANY Additional information: Y There will be an increase in length of .COM files. This virus stays resident in memory. Name of virus : VIPER : VIPER DROPPER Status : Uncommon Discovery : JANUARY- 1992 Origin : AUSTRALIA Additional information: Both .COM and .EXE files will be overwritten. Programs will fail to execute properly. Messages will be displayed on the monitor. Name of virus : VIPERIZE Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : VIRDEM : VIRDEM 2 Status : ENDANGERED Discovery : -1986 - 1987 Origin : GERMANY Additional information: b There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Name of virus : VIRDEM-1542 Status : Uncommon Discovery : -1991 Origin : UNKNOWN Additional information: There will be an increase in the length of .COM file. System will halt requiring re-boot of the system. Drives will be accessed when not expected. Error messages appear when accessing the disk. Name of virus : VIRDEM-792 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: 4 There will be an increase in length of .COM files. Name of virus : VIRUS-101 Status : RESEARCH Discovery : JANUARY- 1990 Origin : DISTRICT OF COLUMBIA/ UNITED STATES Additional information: This virus stays resident in memory. Changes are made to the boot sector of the hard disk. There will be an increase in length of .COM files only on floppies. Name of virus : VIRUS-90 Status : RESEARCH Discovery : DECEMBER- 1989 Origin : DISTRICT OF COLUMBIA/ UNITED STATES Additional information: \ There will be an increase in the length of .COM file. This virus stays resident in memory. Name of virus : VIVALDI : HS Status : Uncommon Discovery : FEBRUARY- 1992 Origin : UNKNOWN Additional information: Y There will be an increase in length of .EXE files. This virus stays resident in memory. Name of virus : VMEN Status : NEW Discovery : MAY- 1992 Origin : ISRAEL Additional information: [ There will be an increase in length of .COM and .EXE files. A hidden file is created with the name VMEN.SYS. Changes are made to the CONFIG.SYS file. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Changes will occur to file date and/or time. System will halt requiring re-boot of the system. Name of virus : VORONEZH Status : Uncommon Discovery : DECEMBER- 1990 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : VORONEZH-370 : 370-B Status : Uncommon Discovery : NOVEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. Changes will occur to file date and/or time. Name of virus : VORONEZH-CHEMIST : CHEMIST Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : VOTE Status : NEW Discovery : JUNE- 1992 Origin : BULGARIA Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Messages will be displayed on the monitor. Name of virus : VP Status : Uncommon Discovery : MAY- 1990 Origin : ENGLAND Additional information: T There will be an increase in the length of .COM file. System will run very slowly. Name of virus : VRIEST Status : Uncommon Discovery : APRIL- 1991 Origin : EUROPE Additional information: \ There will be an increase in the length of .COM file. This virus stays resident in memory. Name of virus : VVF 3.4 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : W13 : TOOTHLESS VIRUS,W13-A,W13-B,W13-REQ,W13-361 : W13-377,W13-534B Status : ENDANGERED Discovery : DECEMBER- 1989 Origin : POLAND Additional information: 7 There will be an increase in the length of .COM file. Name of virus : WARNING Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Messages will be displayed on the monitor and the system will automatically reboot. Name of virus : WARRIOR Status : Uncommon Discovery : MAY- 1991 Origin : BULGARIA Additional information: _ There will be an increase in length of .EXE files. Drives will be accessed when not expected. Name of virus : WERE HERE : HERE Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN/EUROPE Additional information: _ There will be an increase in length of .COM files. Messages will be displayed on the monitor. Name of virus : WESTWOOD Status : Uncommon Discovery : AUGUST- 1990 Origin : WESTWOOD Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. System will run very slowly. Screen will show a black box or window. Files will be deleted on Friday the 13th. Name of virus : WHALE : MOTHER FISH,STEALTH VIRUS,Z THE WHALE Status : RESEARCH Discovery : AUGUST- 1990 Origin : HAMBURG Size : 9216 BYTES Additional information: F There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will run very slowly. The monitor will appear to flicker. Screen redraws will be very slow. File allocation errors will occur. AUTOEXEC.BAT will be execute. Name of virus : WILBUR Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: _ There will be an increase in length of .COM files. Messages will be displayed on the monitor. Name of virus : WINDMILL : WINDMILL DROPPER Status : Uncommon Discovery : OCTOBER- 1991 Origin : PHILIPINES Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. A graphic of a windmill will appear on the monitor after accessing a write protected disk. Name of virus : WISCONSIN : DEATH TO PASCAL Status : Uncommon Discovery : SEPTEMBER- 1990 Origin : WISCONSIN Size : 825 BYTES Additional information: There will be an increase in the length of .COM file. Messages will be displayed on the monitor. Unexpected write protect errors will be encountered. PAS files will be deleted. Changes will occur to file date and/or time. Name of virus : WOLFMAN : WOLF Status : Uncommon Discovery : JULY- 1990 Origin : TAIWAN Additional information: b This virus stays resident in memory. There will be an increase in length of .COM and .EXE files. Name of virus : WONDER : WONDER-2 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: EXE files will be corrupted or overwritten. Programs will fail to execute properly. System will halt requiring re-boot of the system. Messages will be displayed on the monitor. Name of virus : WONDERFUL Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: _ There will be an increase in length of .COM files. Drives will be accessed when not expected. Name of virus : WORDSWAP : WORDSWAP-1069,WORDSWAP-1085,WORDSWAP-1387 : WORDSWAP-1503 Status : Uncommon Discovery : SEPTEMBER- 1991 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. This virus stays resident in memory. Changes will occur to file date and/or time. Files will be corrupted. System will halt requiring re-boot of the system. Name of virus : WORLD PEACE Status : NEW Discovery : MAY- 1992 Origin : MALAYSIA Additional information: Changes are made to the boot sector of the hard disk. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : WORM-16850 Status : Uncommon Discovery : APRIL- 1992 Origin : UNKNOWN Size : 850 BYTES Additional information: Hidden files will be created. Name of virus : WORM-17690 : 17690 Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Size : 690 BYTES Additional information: There will be an increase in the length of .EXE files. New files will be created with .SYS, .DAT, .PRG and .FIL extentions. Name of virus : WWT : WWT 01,WWT 02,WWT 02B Status : Uncommon Discovery : MAY- 1991 Origin : EUROPE Additional information: > ".COM" files will be corrupted or overwritten with new data. Name of virus : XABARAS Status : Uncommon Discovery : AUGUST- 1991 Origin : ITALY Additional information: U There will be an increase in length of .EXE files. Program files will be corrupted. Name of virus : XPEH : 4-B Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. System will halt requiring re-boot of the system. Name of virus : XUXA Status : Uncommon Discovery : MARCH- 1992 Origin : ARGENTINA Additional information: There will be an increase in length of .COM files. This virus stays resident in memory. The directory will have the order of files changed. Music will be heard coming from the system speaker. Name of virus : YAFO : MOG,MACABI Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. Changes will occur to file date and/or time. Messages will be displayed on the monitor. Name of virus : YANKEE 2 : YANKEE VIRUS,YANKEE-GO-HOME,1961,OLD YANKEE Status : ENDANGERED Discovery : SEPTEMBER- 1989 Origin : BULGARIA Additional information: q There will be an increase in length of .EXE files. The tune Yankee Doodle will be played on the system speaker. Name of virus : YANKEE DOODLE : TP44VIR,FIVE O'CLOCK VIRUS Status : COMMON Discovery : SEPTEMBER- 1989 Origin : BULGARIA Additional information: m There will be an increase in length of .COM and .EXE files. The system will start playing music after 5 pm. Name of virus : YAP Status : Uncommon Discovery : MARCH- 1991 Origin : UNITED STATES Additional information: There will be an increase in the length of .COM file. This virus stays resident in memory. The screen will display "bugs". Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : YEAR 1992 : 1992 Status : Uncommon Discovery : DECEMBER- 1991 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Corruption of the hard disk will occur. Name of virus : YUKON OVERWRITING Status : Uncommon Discovery : JANUARY- 1991 Origin : CANADA Additional information: k Divide overflow errors will occur. The beginning sections of some programs are overwritten with new data. Name of virus : ZARAGOSA : CAZ-1159 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Disk allocation errors will appear. System will halt requiring re-boot of the system. Name of virus : ZERO BUG : PALETTE,1536,ZERO Status : ENDANGERED Discovery : SEPTEMBER- 1989 Origin : NETHERLANDS Additional information: There will be an increase in the length of .COM file. This virus stays resident in memory. Monitor will display various graphics. Name of virus : ZEROHUNT : MINNOW,STEALTH,ZERO-HUNT,HUNT Status : RESEARCH Discovery : DECEMBER- 1990 Origin : UNITED STATES Additional information: > ".COM" files will be corrupted or overwritten with new data. Name of virus : ZHERKOV : ZHERKOV-1882,ZRK Status : Uncommon Discovery : FEBRUARY- 1992 Origin : USSR Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Monitor will display various graphics. Name of virus : ZK900 : PRAY,900 Status : Uncommon Discovery : APRIL- 1991 Origin : UNITED STATES Additional information: There will be an increase in length of .COM and .EXE files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Music will be heard coming from the system speaker. Name of virus : ZMT : 262 Status : Uncommon Discovery : JANUARY- 1992 Origin : UNKNOWN Additional information: There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Changes will occur to file date and/or time. Name of virus : ZUL Status : Uncommon Discovery : JANUARY- 1992 Origin : HUNGARY Additional information: There will be an increase in length of .COM files. Running CHKDSK will show a decrease in total system memory and the amount of available free memory. Name of virus : ZY Status : NEW Discovery : JULY- 1992 Origin : AUSTRIA Additional information: f There will be an increase in length of .COM files. System will halt requiring re-boot of the system. Name of virus : ZZ Status : NEW Discovery : MAY- 1992 Origin : UNKNOWN Additional information: a There will be an increase in length of .COM files. Changes will occur to file date and/or time.