Re: Can such a virus be written .... (PC)

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Article #4622

#4622

From: Fridrik Skulason
Date: Wed, 26 Jun 1991 11:00

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It seems I misunderstood a question which was posted here a while ago,
so please disregard my earlier reply....

>vanaards@project4.computer-science.manchester.ac.uk (Steven van Aardt) writes:
>  Is it possible to write a PC virus which installs itself whenever
>you place an infected disk in the drive and do a DIR command ?

I wrote:

>Not only possible - many such viruses already exist.  They are either boot
>sector infectors which intercept INT13 and infect a disk whenever it is read
>from, or file infectors which intercept the FindFirst/FindNext functions -
>the DIR and DIR-2 viruses are a prime example.

But, as I said, this was a misunderstanding - I thought the original
poster meant whether a resident virus could infect a diskette simply
when the user issued a 'DIR' command.  However, the question was
whether a virus-infected diskette could infect the system, when the
user issued a 'DIR' command.

The answer to that question is a definite NO - on a PC, that is - but
I am not sure if the same applies to the Amiga or the Mac - perhaps
somebody else can clarify that.

Sorry about any confusion caused by my earlier reply...

- -frisk

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From: frisk@rhi.hi.is (Fridrik Skulason)
Newsgroups: comp.virus
Subject: Re: Can such a virus be written .... (PC)
Message-ID: <0008.9106261903.AA01188@ubu.cert.sei.cmu.edu>
Date: 26 Jun 91 11:00:42 GMT
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