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- Agax v1.3 Manual
-
- ----------------------------------------------------------------------------
-
- Agax is currently at version 1.3. If you already know how to use Agax and
- are having problems with it, then take a look at the FAQ section at the bottom.
-
- Agax
-
- Agax is an antivirus application. It scans your disks and files for viruses.
- It also contains Defender, which is an antivirus extension. Both of these
- use Additives to discover and (in the case of Agax) repair infected files.
- Additives are stored in the folder 'Additives' in the same folder as Agax.
-
- The main window of Agax has the title 'Log'. It records Agax's antivirus
- activity - in particular reporting the discovery of infected files, and the
- success it has in repairing them. You can perform operations on the log with
- the File menu.
-
- Agax has two menus with identical contents but different titles - the
- 'Examine' and 'Repair' menus. These both do the same thing (scan for
- viruses), except that 'Repair' will attempt to remove viruses from infected
- files, whereas 'Examine' will just report the infection. Some files cannot
- be repaired, and you are given the option of deleting these (if the Additive
- responsible considers the file a threat) at the end of the scan. Agax
- displays a progress bar during its scan of a volume. To stop the scan, click
- the close box of the progress bar.
-
- The 'Nasties' menu contains a list of the currently installed Additives. You
- can view more information about an Additive by selecting it from this menu.
- You can change when this Additive is used from the window which results.
- There are three checkboxes: 'Examine files for this virus' uses this
- Additive when it is examining; 'Repair files with this virus' uses this
- Additive when repairing; 'Proactively repel this virus' uses this Additive
- in Defender. Changes to the last checkbox will only take effect on restart.
-
- These options as recorded in the preferences. When Agax starts up, it checks
- to see how the list of Additives has changed from last time. If any are
- missing, it will warn you of the fact, and if there are any new ones, it
- will ask you what you want to do with them (enable all or disable all). You
- can change this later through the information boxes described above. If Agax
- can't find its preferences, it tells you and enables all Additives.
-
- Defender
-
- The only available option in the Edit menu is 'Preferences'. Currently, this
- controls only the preferences for Defender. Any changes made here only take
- effect on restart. The first checkbox 'Enable Defender' controls whether or
- not the Defender extension is installed. If the status of this checkbox has
- changed when you close the preferences, Agax will take the appropriate
- action (i.e. create or delete Defender in the Extensions folder).
-
- When Defender is enabled, you can choose how it protects your computer.
- There are currently three types of protection:
-
- - 'Examine volumes when mounted'. When a volume is mounted, it is examined.
- If a virus is found you are asked to run Agax on the volume. There is a
- further option under this: 'Simple examination' or 'Thorough examination'.
- 'Simple examination' is quick and will find viruses which always live in the
- same place on a volume (such as AutoStart worms). 'Thorough examination'
- does a complete scan of the volume, as if it was selected from the 'Examine'
- menu, but without the progress bar. As you can imagine this is very slow, so
- I don't recommend it.
-
- (Note: After startup, all volumes except the system volume will be scanned
- in the method indicated if volume examination is enabled)
-
- - 'Examine applications when launched'. When an application or desk
- accessory is launched, it is examined. If a virus is found, the launch is
- prevented and you are told that the application is infected. Control Panels
- are not examined, as they execute inside the Finder. To catch infected
- control panels (not that I know of any) you would have to use the next type
- of protection.
-
- - 'Examine resource forks when opened'. When a resource fork is opened, it
- is examined. If the file is infected, the open is prevented and you are told
- that the file is infected. If this type is on as well as the examining
- launches type, clean applications will be examined twice (but it doesn't
- take long, so don't worry about it too much). When this type is selected,
- even the Finder's 'Get Info' command will warn you of infection (for
- applications at any rate).
-
- Alongside all of these types of protection there is the option to log when
- the checks occur. Even if these boxes are unchecked, infections will still
- be logged - unchecking them just cuts out the 'Started...'/'Completed ...'
- log entries. Warning: Turning this option on for resource forks is a bad
- idea - resource forks are opened and closed all the time. It will
- significantly slow down your computer, and make the log huge (too big for
- SimpleText) very quickly. The log is also useful for determining the virus
- causing the infection (without running Agax), as the notification message
- does not tell you this information.
-
- Defender's log is called 'Defender Log' and stored inside the System folder.
-
- Defender too keeps track of which Additives are around - newly discovered
- additives are disabled. The Additives which Defender uses are those beside
- the last Agax which was run - so make sure you don't run Agax from a server
- (actually, I haven't tested this - it might in fact mount the server during
- startup).
-
- Warnings, bugs, etc.
-
- Warning: Both Defender and Agax make an attempt to guard against themselves
- being infected. Thus you shouldn't fiddle with them - in particular don't
- change Agax's memory allocation. This will likely be improved and extended
- to Additives in the near future.
-
- Agax replaces Antigax and GAx Defender - you should delete these and use
- Agax and Defender instead.
-
- System Requirements
-
- Theoretically, Agax and Defender should work from System 7.0 up. However the
- current version has only been tested on System 8.0 and 8.1 (that should
- probably be MacOS 8.0 ... ), so I really don't know about anything other
- than those.
-
- Special Help Sections (FAQs)
-
- I just expanded Agax and ran it, and it says it's been tampered with! I sure
- didn't touch it - what gives?
-
- This error usually results when Agax itself has become infected. It will
- refuse to run if that happens, because the virus might re-infect files as
- fast as Agax repaired them.
-
- If it was something you did (e.g. modified it with ResEdit, changed its
- memory requirements, etc.) then you should replace the modified Agax with a
- freshly expanded version.
-
- If it was due to a virus however, then it is more than likely that this
- virus is in RAM (and therefore practically impossible to remove without
- restarting), and would infect Agax again if you re-expanded it straight
- away. So I suggest you do the following:
-
- * Delete the Agax application, but keep the Stuffit archive handy.
- * Restart your computer from your System CD (e.g. the Mac OS 8 CD), or
- some other guaranteed virus-free System Folder.
- * Expand Agax.
- * Launch Agax.
-
- If this still doesn't work (very unlikely), then try repeating the
- procedure, but locking the Agax application after you expand it and before
- you launch it.
-
- If Agax does not find any viruses, then it is probable that it was infected
- by a previously unknown virus. If this happens, then please get in touch
- with me!
-
- Originally I intended to keep Agax locked, so viruses would have more
- difficulty infecting it, but in the initial release I neglected to do this.
- This turned out to be far better for everyone, because Agax inadvertently
- found some new viruses when they infected it - so I've decided to keep it
- unlocked by default. If you wish to lock it however, then by all means go
- ahead, but you will forgo that extra level of protection.
-
- I just installed a new Additive, and chose the 'Verify over Internet'
- option, and this huge dialogue came up with three lists in it. What does it
- all mean, and should I worry?
-
- OK, this was new in Agax v1.2. The list on the left shows the latest
- versions of Additives that the Agax web server knows about. Anyone is free
- to write their own Additive, but it won't appear on that list unless they
- tell me about it. Also, new Additives will appear in this list when they are
- released, so you can check here for updates instead of going to the web page
- if you want to.
-
- The other two lists contain Additives sitting in the Additives folder on
- your computer that Agax is currently using. If the server knows about the
- Additive (of that version), then it goes into the list on the left (i.e. the
- middle of three). If the server doesn't know about it then it goes into the
- list on the right. In addition to this each Additive has a tick or a cross
- in front of it. This only indicates whether or not you've currently got it
- enabled - nothing more. You can enable or disable all the Additives in
- either list by using the radio buttons below. 'Leave' means they are left as
- they appear in the list.
-
- All of my Additives will appear in the Master List and be verified in the
- middle list. It's only Additives written by other people that could
- legitimately end up in the third list. You should be very suspicious of any
- Additives unexpectedly turning up in that list, especially if they claim to
- have come from me.
-
- All of this is to ensure that someone won't make an Agax Additive that is a
- virus, especially if they claim that I've written it. In general you should
- need a good reason for trusting an Additive that the server doesn't.
-
- Disclaimer
-
- #include <std_disclaimer.h>
-
- ----------------------------------------------------------------------------
-
- {P^/
- 10/7/1999
- John Dalgliesh
- <http://www.cse.unsw.edu.au/~s2191331/agax/agax.html>
-