Full Disclosure mailing list archives

RE: A worm...


From: "Richard M. Smith" <rms () computerbytesman com>
Date: Thu, 26 Jun 2003 07:54:38 -0400

This is the first worm that I am aware of that hides itself inside of a
.ZIP file.  This trick prevents the worm executable from being deleted
by the Outlook Security Update.  Looks like Microsoft will need to now
think about how to deal with malicous code inside of attached .ZIP
files.  Outlook 2002 does provide a security warning when opening the
.ZIP file.  But everyone knows that .ZIP files are safe, right?  I don't
believe there is any security warning when running the .PIF file inside
of the .ZIP, but I didn't try this particular experiment. ;-)

Richard

-----Original Message-----
From: full-disclosure-admin () lists netsys com
[mailto:full-disclosure-admin () lists netsys com] On Behalf Of KF
Sent: Wednesday, June 25, 2003 9:11 PM
To: full-disclosure () lists netsys com
Subject: Re: [Full-disclosure] A worm...


I believe Simon is well aware of what virus this is... the question was 
in relation to the zipping of the payload. I believe he was wondering if

this (zipping of payload) was some new Antivirus evasion trick or if 
there was something more to it (like simply hoping a retarded user would

unzip and run the .pif).

I know what it is, but since when did the pif worm start zipping
itself?
did I miss something?

-KF


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