ET MALWARE 44 Caliber Stealer Data Exfil via Discord

Query · suricata

flow:established,to_server;
http.request_line;
content:"POST /api/webhooks/"; startswith;
http.host;
content:"discord.com";
http.content_type;
content:"multipart/form-data|3b 20|boundary=|22|"; startswith;
http.request_body;
content:"form-data|3b 20|name=content|0d 0a 0d 0a 5c|n|20 3a|spy|3a 20|NEW LOG FROM - "; fast_pattern;
content:"|20 30|person_in_manual_wheelchair|3a 0d 0a 5c|n|20 3a|eye|3a 20|IP|3a 20|"; distance:0;
content:"|5c|n|20 3a|desktop|3a 20|"; distance:0;
Raw source ET MALWARE 44 Caliber Stealer Data Exfil via Discord · Suricata
Esc
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 44 Caliber Stealer Data Exfil via Discord";
    flow:established,to_server;
    http.request_line;
    content:"POST /api/webhooks/"; startswith;
    http.host;
    content:"discord.com";
    http.content_type;
    content:"multipart/form-data|3b 20|boundary=|22|"; startswith;
    http.request_body;
    content:"form-data|3b 20|name=content|0d 0a 0d 0a 5c|n|20 3a|spy|3a 20|NEW LOG FROM - "; fast_pattern;
    content:"|20 30|person_in_manual_wheelchair|3a 0d 0a 5c|n|20 3a|eye|3a 20|IP|3a 20|"; distance:0;
    content:"|5c|n|20 3a|desktop|3a 20|"; distance:0;
    reference:md5,5d8135dc3f85bee9dd93456a9445fa35;
    reference:url,twitter.com/nao_sec/status/1370702500798418946;
    classtype:command-and-control;
    sid:2032803; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_04_21, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2021_04_21;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.