ET MALWARE Win32/80mb3rm4n Grabber CnC Exfil via Discord (POST)


Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/api/webhooks/"; startswith;
http.host;
content:"discord.com"; endswith;
http.request_body;
content:"|7b 22|footer|22 3a 7b 22|text|22 3a 22|"; depth:35;
content:"|20|Grabber|20 7c 20|202"; fast_pattern;
content:"|7d 2c 22|author|22 3a 7b 22|name|22 3a 22|";
content:"|20|Grabber|22 2c 22|url|22 3a 22|http";
content:"|7b 22|name|22 3a 22|Machine|20|Name|22 2c 22|value|22 3a 22|";
Raw source ET MALWARE Win32/80mb3rm4n Grabber CnC Exfil via Discord (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 Win32/80mb3rm4n Grabber CnC Exfil via Discord (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/webhooks/"; startswith;
    http.host;
    content:"discord.com"; endswith;
    http.request_body;
    content:"|7b 22|footer|22 3a 7b 22|text|22 3a 22|"; depth:35;
    content:"|20|Grabber|20 7c 20|202"; fast_pattern;
    content:"|7d 2c 22|author|22 3a 7b 22|name|22 3a 22|";
    content:"|20|Grabber|22 2c 22|url|22 3a 22|http";
    content:"|7b 22|name|22 3a 22|Machine|20|Name|22 2c 22|value|22 3a 22|";
    reference:md5,4ed73704b1bf762248800bb7432c727e;
    reference:url,twitter.com/suyog41/status/1653649768500047873;
    classtype:trojan-activity;
    sid:2045310; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_03, deployment Perimeter, deployment SSLDecrypt, malware_family Win32_80mb3rm4n, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_03;
)

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