ET MALWARE S400 RAT Client Checkin via Discord

Query · suricata

flow:established,to_server;
http.request_line;
content:"POST /api/webhooks/"; startswith;
http.host;
content:"discord"; depth:7;
content:".com"; endswith;
http.request_body;
content:"content=S-400+RAT+%3a"; startswith; fast_pattern;
content:"%0d%0ainformation"; distance:0;
Raw source ET MALWARE S400 RAT Client Checkin via Discord · 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 S400 RAT Client Checkin via Discord";
    flow:established,to_server;
    http.request_line;
    content:"POST /api/webhooks/"; startswith;
    http.host;
    content:"discord"; depth:7;
    content:".com"; endswith;
    http.request_body;
    content:"content=S-400+RAT+%3a"; startswith; fast_pattern;
    content:"%0d%0ainformation"; distance:0;
    reference:md5,41ca8d5782ef5ac7a371b44f51dc48d9;
    classtype:command-and-control;
    sid:2034065; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_09_30, deployment Perimeter, deployment SSLDecrypt, malware_family S400, confidence High, signature_severity Major, tag RAT, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_24;
)

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