ET HUNTING Discord WebHook Activity M2 (Contains Key, embeds)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/api/webhooks/"; startswith;
http.host;
content:"discord"; startswith; fast_pattern;
http.request_body;
content:"|22|embeds|22 3a|";
Raw source ET HUNTING Discord WebHook Activity M2 (Contains Key, embeds) · 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 HUNTING Discord WebHook Activity M2 (Contains Key, embeds)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/webhooks/"; startswith;
    http.host;
    content:"discord"; startswith; fast_pattern;
    http.request_body;
    content:"|22|embeds|22 3a|";
    reference:url,discord.com/developers/docs/resources/webhook#execute-webhook;
    classtype:misc-activity;
    sid:2055992; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2024_09_20, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2024_09_20;
)

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