Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!dsinc!netnews.upenn.edu!vax1.cc.lehigh.edu!cert.sei.cmu.edu!krvw From: bdh@gsbsun.uchicago.edu (Brian D. Howard) Newsgroups: comp.virus Subject: Re: Can such a virus be written .... (PC) Message-ID: <0009.9106241405.AA24222@ubu.cert.sei.cmu.edu> Date: 21 Jun 91 17:08:31 GMT Sender: Virus Discussion List Lines: 16 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 ? Yes. You'd have to change command.com and have a dir.com or dir.bat just sitting there. I've actually manually done something like that as a prank (stay away from me on april 1...) (You asked merely if it was *possible*. Now, do you think you've got something like that going on?) - -- "Hire the young while they still know everything."