ET RETIRED Trojan.Proxy.Small.Z CnC Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED Trojan.Proxy.Small.Z CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/socks.php?"; startswith;
    content:"socksport=";
    content:"httpsport="; fast_pattern;
    content:"uid=";
    content:"tip=";
    http.header_names;
    content:!"Referer";
    reference:md5,a334091070ebe476e4224da28d9b4bf0;
    classtype:trojan-activity;
    sid:2038750; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_06, deployment Perimeter, former_category MALWARE, malware_family Trojan_Proxy_Small_Z, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_17, reviewed_at 2024_09_17;
)