Article View: comp.virus
Article #5202Re: Idea for WDEF Innoculation (Mac)
From: Christopher Tate
Date: Mon, 12 Feb 1990 01:35
Date: Mon, 12 Feb 1990 01:35
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2385 bytes
jg3o+@andrew.cmu.edu (Jason Ari Goldstein) says:
>I don't know much about Macs (Being a PC person) but if I understand
>correctly every time the disk is inserted the they Virus is sread to
>the disk. Well, why doesn't someone write an innoculation directly
>based on the virus itself. Everytime a disk is inserted in the drive
>it would be checked for infection if so it would remove WDEF if not it
>would then 'innoculate the disk' with itself. Eventually, WDEF would
>be wiped out the same way it was spread initially.
>
>The only problem with this is that it is a virus also, but with the
>proper prompts (allowing the user the choice of being innoculated) I
>don't think this would be a problem. I know I would mind not ever
>being infected by a virus that kills other viruses.
>
>In the mean time, about 75% of the time I in a cluster I remove WDEF A
>or B from either a hard disk or someone elses floppies.
The big problem with this is that since the WDEF-removal code is itself
a virus, it stands a big chance of causing the same problems as any other
virus -- crashes due to poorly written code.
There have been no viruses written to date for the Macintosh which
deliberately cause damage to the system (*). All of the problems caused
by existing viruses are in fact the result of bugs in the viruses, which
causes interference with other programs under certain circumstances.
Since the above-mentioned inoculation program would be a virus itself,
it might well cause problems itself.
(*) Mosaic and Font Finder are not viruses (they do not replicate), but
are instead "trojan horses" -- destructive code hidden within an
innocuous-seeming program.
- -------
Christopher Tate |
cxt105@psuvm.bitnet | nobody, not even the rain,
cxt105@psuvm.psu.edu | has such small hands.
..!psuvax1!psuvm.bitnet!cxt105 |
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!polyslo!vlsi3b15!vax1.cc.lehigh.edu!sei.cmu.edu!krvw From: CXT105@PSUVM.PSU.EDU (Christopher Tate) Newsgroups: comp.virus Subject: Re: Idea for WDEF Innoculation (Mac) Message-ID: <0009.9002121947.AA15751@ge.sei.cmu.edu> Date: 12 Feb 90 01:35:44 GMT Sender: Virus Discussion List <VIRUS-L@IBM1.CC.Lehigh.EDU> Lines: 38 Approved: krvw@sei.cmu.edu