ET RETIRED Win32/Lilith Stealer registerBot CnC Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED Win32/Lilith Stealer registerBot CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/gate/"; startswith;
    pcre:"/^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}/R";
    content:"/registerBot"; endswith; fast_pattern;
    http.user_agent;
    content:"Lilith-Bot/"; startswith;
    http.header_names;
    content:!"Referer";
    http.request_body;
    content:"ip_address=";
    content:"username=";
    content:"compname=";
    content:"system=";
    content:"owner=";
    reference:md5,0ebe8de305581c9eca37e53a46d033c8;
    classtype:trojan-activity;
    sid:2038497; rev:2;
    metadata:attack_target Client_and_Server, created_at 2022_08_11, deployment Perimeter, former_category MALWARE, malware_family Lilith_Stealer, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_17, reviewed_at 2024_09_17;
)