Article View: comp.virus
Article #4287Re: Is this a DOS virus? (PC)
From: Fridrik Skulason
Date: Fri, 11 Dec 1992 08:05
Date: Fri, 11 Dec 1992 08:05
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echrstmn@lab4.smcm.edu (Evan Christman) writes:
> On one of our PC's we are observing some odd behaviour of our
>DOS files. The symptoms are: certain DOS files, share, dosshell and a
>few others report that their size has been altered when I run a
>CHKDSK.
Infection by a stealth virus is a possibility, but simply regular FAT
corruption is a much more likely explanation. Do the following:
reboot from a clean diskette
rerun CHKDSK
if it reports that the file sizes are wrong, you just have regular
FAT corruption. In that case you can try to run CHKDSK /F and
then replace the damaged files, just to be 100% safe :-)
- -frisk
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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!yale.edu!jvnc.net!netnews.upenn.edu!netnews.cc.lehigh.edu!news From: frisk@complex.is (Fridrik Skulason) Newsgroups: comp.virus Subject: Re: Is this a DOS virus? (PC) Message-ID: <0003.9212151931.AA10887@barnabas.cert.org> Date: 11 Dec 92 08:05:10 GMT Sender: virus-l@lehigh.edu Lines: 20 Approved: news@netnews.cc.lehigh.edu