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RE: Backdoor not recognized by Kaspersky
From: Ron DuFresne <dufresne () winternet com>
Date: Wed, 3 Mar 2004 16:51:40 -0600 (CST)


        [SNIP]


how about the smtp server simply rejecting mail from spoofed hosts ? as all the viruses generate spoofed hosts and it 
is very easy for any smtp server to do a dns lookup on the sending server, if the hostname / ip address do not match 
reject the message.


Finally some sanity marks this thread!

Thanks,

Ron DuFresne
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Cutting the space budget really restores my faith in humanity.  It
eliminates dreams, goals, and ideals and lets us get straight to the
business of hate, debauchery, and self-annihilation." -- Johnny Hart
        ***testing, only testing, and damn good at it too!***

OK, so you're a Ph.D.  Just don't touch anything.

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