ET MALWARE Win64/FakeUnity CnC Activity (POST)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win64/FakeUnity CnC Activity (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".asp"; endswith;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    http.request_body;
    content:"ODU0NjU2bklyeTJUSzlpaQ=="; fast_pattern;
    classtype:trojan-activity;
    sid:2051697; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2024_03_19, deployment Perimeter, malware_family Win64_FakeUnity, confidence High, signature_severity Major, tag c2, updated_at 2024_03_19, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)