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- Newsgroups: comp.sys.ibm.pc.misc,comp.os.msdos.apps,comp.binaries.ibm.pc.d
- Subject: Re: What is the best anti-virus program???
- Message-ID: <1992Sep1.160118.599@csc.canterbury.ac.nz>
- From: phys169@csc.canterbury.ac.nz
- Date: 1 Sep 92 16:01:18 +1200
- References: <1992Aug26.142519.6625@donau.et.tudelft.nl>
- Organization: University of Canterbury, Christchurch, New Zealand
- Lines: 73
-
- In article <1992Aug26.142519.6625@donau.et.tudelft.nl>, andreas@dutedib.et.tudelft.nl (A.A.Buykx) writes:
- > I recently downloaded f-prot.exe and I downloaded earlier virscan. Now my
- > question is (I am a novice in *anti* virus programs):
- > Which one of these, or which other program should I use to
- > protect my beloved computer from being crunched by some virus.
-
- They are both good, in fact I'd put f-prot in front of MacAfee's SCAN overall.
- There are some viruses which various versions of SCAN fail to detect. This
- shouldn't be taken as a shocking criticism - read the comp.virus newsgroup a bit
- and you'll see there are quite a few viruses which one or other scanner miss,
- and not just new ones. But because these are normally rare instances, you'll
- probably find that other factors are just important - like the speed of search
- or the fact that F-Prot doesn't necessarily make enough "noise" about a virus
- if you put it in a large autoexec.bat file and other things clear the screen
- before you look at it.
-
- There are some general rules of thumb for anti-viral software measures -
- anything more specific would involve knowing the particular situation the
- computer is used in...
-
- (a) Use a mixture of anti-viral measures (e.g. a scan your disk as the
- computer starts up, and a program that looks at executables as you start to run
- them, and a change detector, and perhaps some write-protection system). Modern
- viruses know about modern virus detection methods, and will probably beat one,
- but not all, methods. For example, two good programs that stop boot sector
- viruses at boot-up (Padgett's DiskSecure and PanSoft's Immunise) work against
- known boot sector viruses, but a new one can be written with one of those in
- mind, in which case you need a scanner to detect viruses on diskettes before
- they get a change to infect, and the scanners need to be sensitive to new
- versions.
-
- (b) Get the latest version of at least one major scanner (e.g. FPROT), and
- register it - i.e. get regular updates... VERY important.
-
- (c) If you (or other people using the computer) don't remember to scan each new
- disk and file that comes in consider putting more emphasis on virus stoppers
- (like the VIRSTOP that comes with f-prot, and lots of other things) rather than
- the traditional scanners (which are becoming inadequate for the newer viruses
- anyway).
-
- (d) Get a copy of the Frequently Asked Questions for comp.virus; understand
- that you might get "false positives", see where you can get the latest (safe!)
- copies of popular anti-viral programs and reviews, and so on.
-
- (e) Some very good anti-viral programs are free, and some are cheap shareware.
- Feel free to use these in addition to the "big name" products. I'll put a plug
- in here for my freeware BOOTID program, that identifies boot sector viruses on
- diskettes (doesn't get rid of them, just names them), and another
- locally-produced program called SCANBOOT - which is a TSR that spots diskettes
- with boot sector viruses as you use the diskette normally. After those
- unashamed advertisements I should add there are lots of ingenious, convenient
- programs for stopping viruses one way or another; these are just examples I am
- familiar with. Another thing worth mentioning is that if you have DRDOS 6, it
- is wise to put password write-protection on the programs... it doesn't stop all
- viruses but it is better than the simple attribute command (which is useless).
- Another thing you might not think of as an anti-viral measure is if you create
- a partition just for executables and unchanging files, then use Stacker or
- SuperStore to compress it, then make it read-only with Disk Manager, it can be
- very hard for viruses to infect the programs. In general, though, read-only
- systems via software aren't all that secure. They are best for stopping
- accidental damage to files (which is common enough to protect against!)
-
- (f) What ever protection system you use, it is important to maintain good
- backups! There are some disasters these programs simply cannot protect you from.
-
- (g) There are a whole host of measures appropriate to clusters and labs of
- PC's, including making it impossible (without hardware changes) to boot from a
- diskette drive. Some of these changes (like replacement BIOSes) may also be
- appropriate for home computers - not only to avoid viruses but to reduce the
- PC's chance of being stolen.
-
- Whew! this is getting long. Feel free to e-mail me with questions,
- Mark Aitchison, University of Canterbury, New Zealand.
-