ET MALWARE BlankGrabber Stealer Exfiltration via Discord

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/api/webhooks/"; startswith;
http.host; bsize:14;
content:"discordapp.com";
http.request_body;
content:"name|3d 22|file|22 3b 20|filename|3d 22|Blank|2d|admin|2e|rar|22|"; fast_pattern;
Raw source ET MALWARE BlankGrabber Stealer Exfiltration 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 BlankGrabber Stealer Exfiltration via Discord";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/webhooks/"; startswith;
    http.host; bsize:14;
    content:"discordapp.com";
    http.request_body;
    content:"name|3d 22|file|22 3b 20|filename|3d 22|Blank|2d|admin|2e|rar|22|"; fast_pattern;
    reference:url,app.any.run/tasks/d57805e3-c606-465f-9ec5-56a0f6854982/;
    reference:md5,40b8c4e793c6341ad23f27d18b5646eb;
    classtype:trojan-activity;
    sid:2055394; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_08_22, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag c2, updated_at 2024_08_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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