alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED NeoSploit - PDF Exploit Requested"; flow:established,to_server; urilen:>89; content:".pdf"; http_uri; fast_pattern:only; pcre:"/^\/[a-f0-9]{24}\/[a-f0-9]{24}\/[a-f0-9]{24}\/[0-9]{7,8}\/.*\.pdf$/U"; classtype:attempted-user; sid:2015664; rev:3; metadata:created_at 2012_08_29, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)