Bugtraq mailing list archives

Re: Decompression Bombs


From: Chris Green <cmg () dok org>
Date: Mon, 09 Feb 2004 13:13:44 -0500

"Myron Davis" <myrond () xyxx com> writes:

Theoretically one could modify a worm to send random zip'd files of zeros
along the way to different hosts to really kill the destinations
computers.


Is this all just back to fail open/fail closed?  I have a file that
will cause XXX virus scanner to crash.  Does the SMTP agent view that
as a reason to reject the email or does it pass it through?

If it does a temporary rejection message because of some internal
failure, the infection rateof these messages becomes very low. Not
sure how virus scanners + SMTP servers interact with regards to
tradition SMTP errors. 

It would be an effective anti-cleanup method though.
-- 
Chris Green <cmg () dok org>
Fame may be fleeting but obscurity is forever.


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