ET MALWARE W32/Farfli.BHQ!tr Dropper CnC Beacon

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE W32/Farfli.BHQ!tr Dropper CnC Beacon";
    flow:established,to_server;
    urilen:8;
    http.method;
    content:"GET";
    http.uri;
    content:"/php.php"; fast_pattern;
    http.host;
    pcre:"/^\d{1,3}\x2E\d{1,3}\x2E\d{1,3}\x2E\d{1,3}/";
    http.user_agent;
    content:"Mozilla/4.0 (compatible)"; depth:24;
    reference:md5,cb53a6e8d65d86076fc0c94dac62aa77;
    classtype:command-and-control;
    sid:2019946; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2014_12_16, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_10_20, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)