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[Snort-sigs] Re: [ISSForum] Witty signature

From: Sergey V Soldatov <SVSoldatov(at)tnk.ru>
Date: Thu Mar 25 2004 - 08:45:59 EST

I find another signature... It uses more long content, so more exact. Isn't it?

alert udp any 4000:5000 -> any any (msg:"Witty Initial Traffic";content:" |29202020202020696e73657274207769747479206d6573736167652068657265|";rev:1;)

Source port restriction may be removed.

---
Best regards, Sergey V. Soldatov.



                                                                                                                    
              todb@planb-security.net                                                                               
              Sent by:                         To:       snort-sigs@lists.sourceforge.net, issforum@iss.net         
              issforum-bounces@iss.net         cc:                                                                  
                                               Subject:  [ISSForum] Witty signature                                 
                                                                                                                    
              20.03.2004 14:17                                                                                      
                                                                                                                    
                                                                                                                    




Pretty easy one:

alert udp any 4000 -> any any (msg:"ISS RealSecure or BlackICE Witty
Infection Attempt"; content:"|20 20 20 20 20
20|insert.witty.message.here"; depth:146; classtype:trojan-activity;
reference:url,
http://xforce.iss.net/xforce/alerts/id/166; sid:1111001;
rev:1;)

Mostly useful for the Trons crowd (drop disallowed Trons fields
accordingly).

--
Tod Beardsley
www.planb-security.net

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Received on Mon Mar 29 09:00:29 2004

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