alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE KLog Nick Keylogger Checkin"; flow:established,to_server; http.method; content:"POST"; nocase; http.uri; content:".php"; http.user_agent; content:"Mozilla/3.0|20|(compatible|3b 20|Indy|20|Library)"; depth:38; http.request_body; content:"Nick+Key+Ativado"; fast_pattern; classtype:command-and-control; sid:2008338; rev:12; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_02;)