ET MALWARE Trojan.BlackRev Botnet Command Request CnC Beacon

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Trojan.BlackRev Botnet Command Request CnC Beacon";
    flow:established,to_server;
    http.uri;
    content:"/gate.php?cmd="; fast_pattern;
    pcre:"/\/gate\.php\?cmd=(?:get(?:installconfig|exe)|urls)$/";
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,www.btpro.net/blog/2013/05/black-revolution-botnet-trojan/;
    classtype:command-and-control;
    sid:2017723; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2013_11_15, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_09_22, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)