ET MALWARE Win32/SaintStealer CnC Response

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.response_body;
content:"|7b 22|ok|22 3a|true"; startswith;
content:"|22|is_bot|22 3a|true";
content:"|22|document|22 3a 7b 22|file_name|22 3a 22 5b|"; fast_pattern;
content:"|5d|"; distance:0;
content:".zip|22|"; distance:0;
content:"|22|mime_type|22 3a 22|application/zip|22|";
Raw source ET MALWARE Win32/SaintStealer CnC Response · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Win32/SaintStealer CnC Response";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.response_body;
    content:"|7b 22|ok|22 3a|true"; startswith;
    content:"|22|is_bot|22 3a|true";
    content:"|22|document|22 3a 7b 22|file_name|22 3a 22 5b|"; fast_pattern;
    content:"|5d|"; distance:0;
    content:".zip|22|"; distance:0;
    content:"|22|mime_type|22 3a 22|application/zip|22|";
    reference:md5,1604e24ee77201e5264bcd4d8327499e;
    classtype:trojan-activity;
    sid:2039009; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2022_09_27, deployment Perimeter, malware_family SaintStealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_27;
)

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