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Article #4631Re: Can such a virus be written .... (PC)
From: c-rossgr
Date: Wed, 26 Jun 1991 22:05
Date: Wed, 26 Jun 1991 22:05
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>From: padgett%tccslr.dnet@mmc.com (A. Padgett Peterson) > >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 ? >1) No: You cannot contract a PC virus by doing a DIR, a virus must be executed . There is at least one batch file running around that, when you "exec" it, it turns into a virus. If a machine is using ANSI.SYS, it is possible to rename files to provide for reprogramming the keyboard. An argument can be made that causing the, say, F3 key to execute some program or some some batch file due to it being reprogrammed could mean that doing a simple directory could later *cause* a virus to be executed. Ross
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!spool.mu.edu!news.cs.indiana.edu!widener!netnews.upenn.edu!vax1.cc.lehigh.edu!cert.sei.cmu.edu!krvwShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!spool.mu.edu!news.cs.indiana.edu!widener!netnews.upenn.edu!vax1.cc.lehigh.edu!cert.sei.cmu.edu!krvw From: c-rossgr@microsoft.COM Newsgroups: comp.virus Subject: Re: Can such a virus be written .... (PC) Message-ID: <0004.9106271453.AA02305@ubu.cert.sei.cmu.edu> Date: 26 Jun 91 22:05:17 GMT Article-I.D.: ubu.0004.9106271453.AA02305 Sender: Virus Discussion List <VIRUS-L@LEHIIBM1> Lines: 20 Approved: krvw@sei.cmu.edu