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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: <0012.9106251509.AA25956@ubu.cert.sei.cmu.edu>
Date: 25 Jun 91 10:12:24 GMT
Sender: Virus Discussion List <VIRUS-L@LEHIIBM1>
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Approved: krvw@sei.cmu.edu

>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 ?

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.

- -frisk