alert tcp $EXTERNAL_NET any -> $HOME_NET 119 (msg:"GPL MISC NNTP XPAT pattern overflow attempt"; flow:to_server,established; content:"PAT"; nocase; isdataat:1024,relative; pcre:"/^X?PAT\s+[^\n]{1024}/smi"; reference:cve,2004-0574; reference:url,www.microsoft.com/technet/security/bulletin/MS04-036.mspx; classtype:attempted-admin; sid:2102927; rev:5; metadata:created_at 2010_09_23, confidence Medium, signature_severity Informational, updated_at 2019_07_26;)