alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Banload HTTP Checkin Detected (envia.php)"; flow:established,to_server; http.uri; content:"/envia.php"; nocase; http.user_agent; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; startswith; endswith; nocase; http.request_body; content:"praquem="; fast_pattern; nocase; classtype:command-and-control; sid:2008256; rev:10; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_13;)