ET MALWARE SysJoker Bot Configuration Request (POST)


Query · suricata

flow:established,to_server;
urilen:7;
http.method;
content:"POST";
http.uri;
content:"/api/cc";
http.content_type;
content:"application/x-www-form-urlencoded";
http.request_body;
content:"|7b 22|key|22 3a 22|"; startswith;
content:"|22 2c 22|pi|22 3a 22|"; fast_pattern;
content:"|22 2c 22|data|22 3a 22|";
Raw source ET MALWARE SysJoker Bot Configuration Request (POST) · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged.
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE SysJoker Bot Configuration Request (POST)";
    flow:established,to_server;
    urilen:7;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/cc";
    http.content_type;
    content:"application/x-www-form-urlencoded";
    http.request_body;
    content:"|7b 22|key|22 3a 22|"; startswith;
    content:"|22 2c 22|pi|22 3a 22|"; fast_pattern;
    content:"|22 2c 22|data|22 3a 22|";
    reference:url,research.checkpoint.com/2023/israel-hamas-war-spotlight-shaking-the-rust-off-sysjoker;
    reference:url,intezer.com/blog/research/wildcard-evolution-of-sysjoker-cyber-threat;
    classtype:trojan-activity;
    sid:2049301; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_27, deployment Perimeter, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_27;
)

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