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From: ts@uwasa.fi (Timo Salmi)
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: Why are McAffee Antivirals repacked using ZOO?
Message-ID: <1991May14.030656.29712@uwasa.fi>
Date: 14 May 91 03:06:56 GMT
References: <roeve.671697898@cip-s01> <1042@iiasa.UUCP> <1991May9.165210.20097@uwasa.fi>
Distribution: comp
Organization: University of Vaasa
Lines: 23

In article <1991May9.165210.20097@uwasa.fi> ts@uwasa.fi (Timo Salmi) writes:
>In article <1042@iiasa.UUCP> wnp@iiasa.AT (Wolf PAUL ) writes:
>:
>>Anyway, how could any option to an archiver really guard against
>>tampering? All you would have to do is unpack them (w/ pkunzip),
>>tamper with them, and repack them (w/ zip -av), and you would be none
>>the wiser.
>
>Have you tried it?  If not, please do, and then let us know what
>happened.  Unless I'm throughly mistaken you just might be in for a
>surprise. 

We obviously owe Wolf a collective apology.  If we read the virus
warning about SCANV78.ZIP, we'll see why.  ...  So this feature can
be hacked and mimicked after all. 

   All the best, Timo

...................................................................
Prof. Timo Salmi
Moderating at garbo.uwasa.fi anonymous ftp archives 128.214.12.37
School of Business Studies, University of Vaasa, SF-65101, Finland
Internet: ts@chyde.uwasa.fi Funet: gado::salmi Bitnet: salmi@finfun