alert tcp $EXTERNAL_NET any -> $HOME_NET 2049 (msg:"ET DOS FreeBSD NFS RPC Kernel Panic"; flow:to_server,established; content:"|00 01 86 a5|"; offset:16; depth:4; content:"|00 00 00 01|"; distance:4; within:4; content:"|00 00 00 00|"; offset:8; depth:4; content:"|00 00 00 00 00 00|"; offset:0; depth:6; reference:cve,2006-0900; reference:bugtraq,19017; classtype:attempted-dos; sid:2002853; rev:5; metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)