ET MALWARE Ducktail Host Profile Exfiltration (POST)


Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
pcre:"/^\x2f\w\x2f[a-z0-9]{96}$/";
urilen:99;
http.user_agent;
content:"WindowsPowerShell/"; fast_pattern;
http.content_type; bsize:16;
content:"application/json";
http.request_body;
content:"|7b|"; startswith;
content:"|22|RAM|22 3a|";
content:"|22|Core|22 3a|"; distance:0;
content:"|22|Username|22 3a|"; distance:0;
content:"|22|ComputerName|22 3a|"; distance:0;
content:"|22|DiskInfo|22 3a 20 20 5b|"; distance:0;
target:src_ip;
Raw source ET MALWARE Ducktail Host Profile Exfiltration (POST) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Ducktail Host Profile Exfiltration (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    pcre:"/^\x2f\w\x2f[a-z0-9]{96}$/";
    urilen:99;
    http.user_agent;
    content:"WindowsPowerShell/"; fast_pattern;
    http.content_type; bsize:16;
    content:"application/json";
    http.request_body;
    content:"|7b|"; startswith;
    content:"|22|RAM|22 3a|";
    content:"|22|Core|22 3a|"; distance:0;
    content:"|22|Username|22 3a|"; distance:0;
    content:"|22|ComputerName|22 3a|"; distance:0;
    content:"|22|DiskInfo|22 3a 20 20 5b|"; distance:0;
    reference:url,x.com/suyog41/status/1875174914128310378;
    reference:md5,19df486249801c08f0efde6a16e135ee;
    classtype:command-and-control;
    sid:2058930; rev:1;
    metadata:attack_target Client_Endpoint, tls_state plaintext, created_at 2025_01_03, deployment Perimeter, confidence High, signature_severity Major, tag c2, tag Ducktail, updated_at 2025_01_03, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)

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