alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Trojan.BlackRev Botnet Login Request CnC Beacon"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/operator/login.php"; endswith; fast_pattern; http.user_agent; content:"Mozilla/4.0 (SEObot)"; startswith; http.header_names; to_lowercase; content:!"|0d 0a|accept"; content:!"|0d 0a|referer|0d 0a|"; reference:url,www.btpro.net/blog/2013/05/black-revolution-botnet-trojan/; classtype:command-and-control; sid:2017718; rev:7; metadata:attack_target Client_Endpoint, created_at 2013_11_15, deployment Perimeter, signature_severity Major, tag c2, updated_at 2024_04_27, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)