ET MALWARE Lunar Builder Exfil via Discord M2

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";
content:"|3b 20|filename="; within:12;
content:"|0d 0a 0d 0a|[Username]"; distance:0;
content:"[Username][TimeHacked]"; distance:0;
Raw source ET MALWARE Lunar Builder Exfil via Discord M2 · 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 M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/webhooks";
    http.host;
    content:"discord.com";
    http.request_body;
    content:".lunar";
    content:"|3b 20|filename="; within:12;
    content:"|0d 0a 0d 0a|[Username]"; distance:0;
    content:"[Username][TimeHacked]"; distance:0;
    reference:md5,19917b254644d1039dd31d0a488ddeeb;
    classtype:command-and-control;
    sid:2033440; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_07_27, deployment Perimeter, deployment SSLDecrypt, malware_family Lunar_Builder, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_27;
)

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