Re: Is this a DOS virus? (PC)

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1 total messages Started by Fridrik Skulason Fri, 11 Dec 1992 08:05

#4287

Author: Fridrik Skulason
Date: Fri, 11 Dec 1992 08:05

20 lines
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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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