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- From: AMN@vms.brighton.ac.uk (Anthony Naggs)
- Newsgroups: comp.virus
- Subject: re: McAfee Products (PC)
- Message-ID: <0004.9207271931.AA18193@barnabas.cert.org>
- Date: 22 Jul 92 00:16:17 GMT
- Sender: virus-l@lehigh.edu
- Lines: 59
- Approved: news@netnews.cc.lehigh.edu
-
- James Roy (james.roy@synapse.isis.org) says:
- > TO: padgett@tccslr.dnet.mmc.com (A. Padgett Peterson)
- >
- > APP> Lately, there has been a more disturbing trend to leave off
- > APP>the explicit identification and identify whole families of viruses
- > APP>simply as [GEN-P] (GENeric-Partition). Since IMHO it is important for
- > APP>those cleaning up after infections to know what it is they are dealing
- > APP>with once an infection has been identified, I sincerely hope that this
- > APP>trend will not continue.
- >
- > McAfee was quoted in Australia recently as saying that he didn't
- > recommend using virus cleaning utilities by anyone except those without
- > back-ups.
- >
- > The reason he said this is that such cleaning utilities are not 100%
- > effective and can damage code or leave it infected. One is better to
- > identify the infected files, wipe them and restore from back-up. As
- > for those who don't maintain effective back-ups, maybe there is a
- > Santa Claus, Virginia.
-
- Padgett doesn't mention cleaning utilities, by which I take you to mean
- a 'disinfector'. For a site with multiple PCs cleaning up is a much larger
- operation, for example:
- * restoring function and data to the affected PC;
- * react to information about the effects & damage done by the -identified-
- virus, (eg does corrupt database files, ...);
- * determining and clearing up the spread to other PCs, all removable media,
- any PCs used for home-working;
- * documenting the incident for managers and insurance claims;
- * deciding on a level of police involvement, (eg reporting or requesting an
- investigation);
- * determining how the virus entered the site/company, tracing back/forewards
- to customers and suppliers who may be affected;
- * improve the enforcement of existing preventative measures or implement
- new ones.
-
- Of course McAfee's views couldn't possibly be influenced by the fact that his
- CLEAN program is shit, could it? Skulason's FPROT and Solomon's A-V Toolkit
- have reasonable disinfection, if required, and take care to disinfect viruses
- that they know.
-
- > Generic detection is the way to go if what we are talking about is the
- > ability to detect --all-- viruses known and unknown. This is the major
- > weakness of scanners - they can't identify viruses they don't already
- > know about.
-
- Sure good generic detection (ie checking after booting from a clean floppy)
- is great and will spot all viruses. However this detection will only happen
- - -after- the virus has changed your system, in some cases this could be too
- late. A number of known viruses with destructive effects simply use a random
- number generator to selet their action, how lucky do you feel? The sensible
- response is to use scanning software as a first line of defence to pick up
- known viruses, and an integrity checker as the second line.
-
- Regards, Anthony Naggs
-
- Internet: amn@vms.brighton.ac.uk or xa329@city.ac.uk
- Janet: amn@uk.ac.brighton.vms ( cbs%uk.ac.brighton.vms::amn )
- or xa329@uk.ac.city ( cbs%uk.ac.city::xa329 )
-