ET RETIRED ErbiumStealer Variant CnC Activity (getstub)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED ErbiumStealer Variant CnC Activity (getstub)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?";
    content:"method=getstub"; fast_pattern;
    content:"bid=";
    content:"tag=";
    http.header_names;
    content:!"Referer";
    reference:md5,e1826f107e517c0cb9a9b02f74cb94f2;
    classtype:trojan-activity;
    sid:2038723; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_01, deployment Perimeter, former_category MALWARE, malware_family Erbium, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_17, reviewed_at 2024_09_17;
)