Article View: comp.sys.mac
Article #9368Re: I'm not sure I believe this. (was Re: New WDEF Virus)
From: Dean Yu
Date: Tue, 12 Dec 1989 10:31
Date: Tue, 12 Dec 1989 10:31
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2742 bytes
In article <4221@sbcs.sunysb.edu> vallon@sboslab15.cs.sunysb.edu (Justin Vallon) writes:
>In article <3277@hub.UUCP>, 6600pete@hub.UUCP writes:
>> From article <1501@rodan.acs.syr.edu>, by wwtaroli@rodan.acs.syr.edu
>(Bill Taroli):
>> > if this WDEF does have code in it that's installing resources into
>> > the Desktop then why are the virus detection programs (like GateKeeper) not
>> > able to catch it?
>>
>> Because they don't watch the Desktop file.
>
Wrong.
>Wouldn't Vaccine catch AddResoruce('WDEF', 0) no matter where it happens?
>I didn't know that Vaccine ignored references to the Desktop file. It
>would seem that the authors of Vaccine were putting a great big hole in
>their protection if they let references to the Desktop get through.
>
>I can see how Gatekeeper could be fooled because it does not distinguish
>between calls of AddResoruce('MSWD', 0) and AR('WDEF', 0). Maybe GK should
>check what's going in, and have protection for standard resources, and
>executable resources.
>
There's nothing wrong with Vaccine or GateKeeper. I just got done perusing
the WDEF virus, and it does some pretty sneaky things to around the current
watch-dog style protection programs. I'm not going to say what it does. Just
trust me when I say that it's pretty clever. And sick.
For the record, Vaccine doesn't care where the WriteResource or AddResource
comes from, so there's no casing out of the DeskTop file. As a matter of
fact, if anyone has ever had Vaccine on when you're updating your System
File, you'll know that it catches pretty much every single resource call.
_______________________________________________________________________________
Dean Yu | E-mail: mystone@caen.engin.umich.edu
Self-declared License Czar | Real-mail: Dean Yu
University of Michigan | 909 Church St
Computer Aided Engineering Network | Apt C
INCLUDE 'Disclaimers.a' | Ann Arbor, MI 48104
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!ux1.cso.uiuc.edu!brutus.cs.uiuc.edu!samsung!shadooby!netnews.engin.umich.edu!news From: mystone@mondo.engin.umich.edu (Dean Yu) Newsgroups: comp.sys.mac Subject: Re: I'm not sure I believe this. (was Re: New WDEF Virus) Message-ID: <1989Dec12.103124.7074@caen.engin.umich.edu> Date: 12 Dec 89 10:31:24 GMT References: <3277@hub.UUCP> <1501@rodan.acs.syr.edu> <4221@sbcs.sunysb.edu> Sender: news@caen.engin.umich.edu (USENET News System) Reply-To: mystone@caen.engin.umich.edu Organization: Computer Aided Engineering Network, University of Michigan Lines: 40