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-
- Software Review
- by J.D. Abolins (first submittal: ASCIIRIBER)
-
- VACCINE, VERSION 2.0
- (not to be confused with FoundationWare's VACCINE, VERSION 1.2 or several
- other programs by the same name.)
-
- WorldWide Data Corporation
- 17 Battery Place
- New York, NY 10004
-
- 1-800-643-3000 ext. 123 for all credit card and COD orders from individuals.
- 1-212-422-4100 for other calls and orders.
- 1-212-809-7206 for FAXed Corporate Purchase Orders.
-
- For IBM and IBM compatible computers (including PC, XT, AT (286 & 386), and
- PS/2 - 30,50,60, or 80) using DOS 2.0 or later.
-
- Sold on a 5.25" 360K floppy diskette only. Not copy-protected. 3.5" diskette
- version copies will be provided on exchange basis to REGISTERED USERS ONLY.
-
- Price: $79.95 (Discount prices available for large orders.)
-
- WorldWide Data's VACCINE is one of the many "anti-viral" software packages
- on the market now. These programs offer to guard computers from malicious
- computer programs, known as "Trojan Horses" and "viruses". Many of these
- programs emphasize the parallels between computer "viruses" and biological
- viruses. VACCINE is no exception; its very name has a medical connotation. Its
- packaging displays pictures of hypodermics, forceps, Kelly clamps, and other
- medical instruments. The medical analogy was so strong, I felt I had to
- sterilize my hands before loading the program into the XT.
-
- The VACCINE package includes one 5.25" diskette, a nine-page instruction
- book, registration card, and a couple of information sheets. The diskette
- itself included three main programs- VACCINE, ANTIDOTE, and CHECKUP. The are
- several utility and sample files files included, as well as a README file for
- additional documentation. The instructions were clear, concise, and simple.
-
- ANTIDOTE, which is the first program to be run when installing VACCINE,
- scans executable files on one's hard disk, looking for signs of program code
- to any of the various "viruses" known to WorldWide Data. ANTIDOTE can run
- periodically to check for suspicious code.
-
- CHECKUP examines the executable files on one's hard drive, derives checksums,
- checks the files' sizes, and compares the information against a file of values
- from an earlier CHECKUP run. If the file of previous values doesn't exist,
- CHECKUP will create a new one. It will give a status report telling one which
- files have been changed, deleted, or added.
-
- VACCINE is a memory-resident program which detects programs that change
- memory tables or they to become memory-resident. To prevent continual false
- alarms when running legitimate programs, one must prepare a configuration file
- which lists the names of legitimate program which may trigger off VACCINE's
- warnings. This is quite simple. The documentation suggests that VACCINE be
- invoked by the AUTOEXEC.BAT so that it is always in the background. When it
- detects a program attempting to change the memory tables or become memory-
- resident, VACCINE sounds off rapid pulsing tones and flashes a warning at the
- bottom of the screen. It gives one three options- "Y" to continue the program,
- "R" to reboot the system, or "A, Alt-A, or Control-A" to add the detected
- program's name to the configuration file. Simple enough. The option to update
- the configuration file is excellent; the update can be done with one
- keystroke.
-
- As mentioned several times above, VACCINE is simple to install and to use.
- But a major question remains- "how effective is it against destructive
- programs?". Since I don't have samples of "virus" program, I could not run a
- full "live ammo" test. Yet from examining and using the package, I have found
- several indicators of its capabilities and weaknesses.
-
- The package does a good overall checkup of the EXECUTABLE FILES. This will
- detect most of the "viruses" which infect executable files. VACCINE will not
- detect anything that infects other files, such as overlay files. For moment,
- most of the "viruses" that I have heard about would be detected by VACCINE
- since they, at some point, will affect executable files. There are no such
- assurances for the future. A major precaution that must be taken with this
- software was with any other "anti-virus" software- one's system must be
- "clean" before installing the software. Otherwise, the software may consider
- the destructive software as a part of the normal environment. This is why the
- VACCINE documention specifies that one uses ANTIDOTE first. But if ANTIDOTE
- misses bogus code, it may be a while before CHECKUP of VACCINE detect the
- code.
-
- While running CHECKUP several times, I have noticed a quirk that can cause
- problems for some users. I use a subdirectory with a high-order ASCII
- character in its name. The first time I ran CHECKUP, it worked well since it
- was creating a new checksum/size file. But when I ran CHECKUP again, it gave
- me an error message, saying that the program found an invalid character in the
- checksum/size file. After experimenting with renaming of the unusual
- subdirectory, my suspicions were confirmed. CHECKUP can be thrown off by high-
- order ASCII (ASCII 128-255) in filenames or directory names. This quirk makes
- it impossible to effectively use CHECKUP on the whole hard disk or on the root
- directory; CHECKUP can still used with subdirectories that don't have the
- high-order ASCII codes. This should be no problem for most users, but some
- users should be aware of this quirk. I know no solution to this quirk other
- than changing the filenames or directory names.
-
- VACCINE was simple to install and to use. It seems to offer a good amount
- of protection against the most of the common types of malicious programs. But
- will only scan executable files, so other files are still vulnerable. Then
- there is the matter of CHECKUP's quirk regarding non-standard filenames. Then
- considering the price of VACCINE ($79.00), I would recommend for the average
- home PC user to check out some of the other "anti-virus" software before
- deciding which one to buy. Some have options that VACCINE does not and many
- offer a bit more for less cost. VACCINE will definitely do the job of
- providing some protection for one's system. But there is no 100% effective
- "anti-virus" program. So whatever software, one uses, one must still compute
- wisely.
-