Snort mailing list archives

Re: [Emerging-Sigs] TCP Portals: The Handshake's a Lie!


From: Frank Knobbe <frank () knobbe us>
Date: Tue, 24 Nov 2009 15:49:37 -0600

On Tue, 2009-11-24 at 11:13 -0500, Josh Smith wrote:
   
I already did some testing with snort, and sent to cunningpike but 
didn't hit reply to all.  Here it is so far:

http://malforge.com/node/20

Snort was able to detect the "alternate" handshake if I took out 
http_method, and put in flow:established,from_server.  This was odd, 
since it should alert on to_server being a GET request.


That should help the Snort crew to narrow things down... unless it's
decided that it's not a problem. And I'm glad to hear that flow: works
properly. Thanks for testing!

-Frank


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