Article View: ca.general
Article #22403Virus kills virus ....
From: Eugene N. Miya
Date: Mon, 16 Mar 1992 17:26
Date: Mon, 16 Mar 1992 17:26
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In article <1992Mar14.225404.169445@locus.com> cjkuo@locus.com
(Chengi Jimmy Kuo) writes:
>If someone writes an anti-virus virus, it's still a virus.
That's a very good point. As I noted to some one in email, one of
these tests for the effectiveness of such a piece of software is
introduce it to itself.
If 1) it destroys itself, that is one consequence.
If 2) it coexists with itself, you have just added more junk to your
memory requirement. You have two copies sitting there.
You also have to check the effects of time sequencing (parallel or sequential
introduction).
Again, the biological analogy is a bad one.
--eugene miya, NASA Ames Research Center, eugene@orville.nas.nasa.gov
Resident Cynic, Rock of Ages Home for Retired Hackers
{uunet,mailrus,other gateways}!ames!eugene
This is the Usenet: do you expect anything other than gross generalizations?
Ref: Mathematics and Plausible Reasoning, vol. 1, G. Polya
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 106ed4,f2bfa2854b7a8328 X-Google-Attributes: gid106ed4,public X-Google-ArrivalTime: 1992-03-16 21:45:00 PST Newsgroups: ca.general Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!ames!data.nas.nasa.gov!wilbur!eugene From: eugene@wilbur.nas.nasa.gov (Eugene N. Miya) Subject: Virus kills virus .... References: <pmq6sINNoau@agate.berkeley.edu> <1992Mar14.050802.21770@crash.cts.com> <1992Mar14.225404.169445@locus.com> Sender: news@nas.nasa.gov Organization: NAS, NASA Ames Research Center, Moffett Field, CA Date: Mon, 16 Mar 92 17:26:12 GMT Message-ID: <1992Mar16.172612.1484@nas.nasa.gov> Distribution: ca Lines: 21