ET MALWARE Win32/MSIL.Heracles Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/MSIL.Heracles Checkin";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/pages/onlineserial.aspx?TYPE=GetRegSerial&machinCode="; startswith; fast_pattern;
    content:"&soft="; distance:0;
    content:"&computerName="; distance:0;
    content:"&userName=";
    http.header_names;
    content:"|0d 0a|Host|0d 0a 0d 0a|"; bsize:10;
    reference:md5,4263294773ac7b794c8f7205967db4b0;
    classtype:trojan-activity;
    sid:2037799; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_20, deployment Perimeter, malware_family Win32_MSIL_Heracles, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_07_20, reviewed_at 2024_12_24;
)