full-disclosure - Snorting Nachi

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From: akloster at spp.org (Alan Kloster)
Subject: Snorting Nachi

FYI, Nachi worm ICMP attempts are showing up on Snort as ICMP PING CyberKit 2.2 Windows alerts with a datagram length of 92:

alert icmp $EXTERNAL_NET any -> $HOME_NET any (msg:"ICMP PING CyberKit 2.2 Windows"; content:"|aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa|"; itype:8; depth:32; reference:arachnids,154; classtype:misc-activity; sid:483; rev:2;) (from icmp.rules) 

Alan Kloster