ET MALWARE Lunar Builder Exfil via Discord M1

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/api/webhooks";
http.host;
content:"discord.com";
http.request_body;
content:".lunar|22 3b 20|filename=|22|";
content:"|0d 0a 0d 0a|<UsernameSplit><UsernameSplit><TimeHackedSplit>";
Raw source ET MALWARE Lunar Builder Exfil via Discord M1 · 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 Lunar Builder Exfil via Discord M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/webhooks";
    http.host;
    content:"discord.com";
    http.request_body;
    content:".lunar|22 3b 20|filename=|22|";
    content:"|0d 0a 0d 0a|<UsernameSplit><UsernameSplit><TimeHackedSplit>";
    reference:md5,11ca4e678716a5aa177bd8506f0e109f;
    classtype:command-and-control;
    sid:2032804; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_04_22, deployment Perimeter, deployment SSLDecrypt, malware_family Lunar_Builder, performance_impact Low, confidence High, signature_severity Major, updated_at 2021_04_22;
)

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