alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT NeoSploit - PDF Exploit Requested"; flow:established,to_server; urilen:>89; http.uri; content:".pdf"; fast_pattern; endswith; pcre:"/^\/[a-f0-9]{24}\/[a-f0-9]{24}\/[a-f0-9]{24}\/[0-9]{7,8}\/.*\.pdf$/"; classtype:exploit-kit; sid:2015691; rev:4; metadata:created_at 2012_09_11, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_17;)