ET MALWARE W32/Kbot.Backdoor Variant CnC Beacon

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE W32/Kbot.Backdoor Variant CnC Beacon";
    flow:established,to_server;
    http.method;
    content:"POST"; nocase;
    http.uri;
    content:"/stat.php"; nocase;
    http.request_body;
    content:"id="; depth:3;
    content:"&build_id="; fast_pattern;
    pcre:"/&build_id=[A-F0-9]+$/i";
    reference:md5,1df0ceab582ae94c83d7d2c79389e178;
    classtype:command-and-control;
    sid:2018078; rev:5;
    metadata:attack_target Client_Endpoint, created_at 2014_02_05, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_09_25, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)