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| Subject: | [Snort-sigs] DNS Cache Poisoning |
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| Date: | Wed, 6 Apr 2005 12:27:12 -0500 |
Anybody got a decent sig for this yet? I tried the one posted by ISC and it generates a continuous stream of false positives. alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"com DNS cache poison"; content:!"TLD-SERVERS"; nocase; offset:10; depth:50; content:"|c0|"; content:"|00 02|"; distance:1; within:2; byte_jump:1,-3,relative,from_beginning; content:"|03|com|00|"; nocase; within:5; classtype:misc-attack; sid:1600; rev:3;) Paul D. Jaramillo Security Event Management Sprint Corporate Security 913-315-8036
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