ET MALWARE Win32/Shrine.A CnC Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Shrine.A CnC Checkin";
    flow:established,to_server;
    http.request_line;
    content:"POST|20|/info|20|";
    http.request_body;
    content:"data|3d 7b 22|Hostname|22 3a 22|"; startswith; fast_pattern;
    content:"|22 2c 22|Username|22 3a 22|"; distance:0;
    content:"|22 2c 22|Platform|22 3a 22|"; distance:0;
    content:"|22 2c 22|Process|22 3a 22|"; distance:0;
    http.user_agent;
    content:"Go-http-client"; startswith;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    reference:md5,34aafe6b66e38e9582cafba003a25e97;
    classtype:trojan-activity;
    sid:2037806; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_21, deployment Perimeter, malware_family Win32_Shrine_A, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_07_21, reviewed_at 2025_01_06;
)