Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!netnews.upenn.edu!vax1.cc.lehigh.edu!sei.cmu.edu!krvw From: SPBK09@SDNET.BITNET (Brian Piersel) Newsgroups: comp.virus Subject: Re: Spafford's Theorems Message-ID: <0006.9001031142.AA02943@ge.sei.cmu.edu> Date: 2 Jan 90 16:02:44 GMT Sender: Virus Discussion List Lines: 22 Approved: krvw@sei.cmu.edu On Fri, 22 Dec 89 12:28:00 -0500 said: >6. The current vector for viruses is floppy disks and diskettes, not >programs. That is to say, it is the media, rather than the programs, >that are moving and being shared. What about infected programs uploaded to a BBS? If someone else downloads that program and uses it, their system will be infected with the same virus. In this case, the media has _not_ moved, which would indicate that programs are also a vector for viruses. Of course, in some cases, such as viruses that infect boot sectors, etc., the disk itself must be shared, but in others, it is only the program that must move. +----------------------------------------------+ | Brian Piersel | +----------------------------------------------+ | BITNET: SPBK09@SDNET | | INTERNET: SPBK09%SDNET.BITNET@VM1.NoDak.EDU | +----------------------------------------------+ | IBM = Itty Bitty Machine | +----------------------------------------------+