ET MALWARE DuckTail APT CnC Activity (GET)

Query · suricata

flow:established,to_server;
urilen:49;
http.method;
content:"GET";
http.uri;
content:"/api/filedata/ps/"; startswith; nocase; fast_pattern;
pcre:"/^([a-z0-9]{32})$/Ri";
http.user_agent;
content:"WindowsPowerShell/";
Raw source ET MALWARE DuckTail APT CnC Activity (GET) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE DuckTail APT CnC Activity (GET)";
    flow:established,to_server;
    urilen:49;
    http.method;
    content:"GET";
    http.uri;
    content:"/api/filedata/ps/"; startswith; nocase; fast_pattern;
    pcre:"/^([a-z0-9]{32})$/Ri";
    http.user_agent;
    content:"WindowsPowerShell/";
    reference:md5,3ab0d663608d0fded925fd01c44e7c63;
    reference:url,twitter.com/suyog41/status/1762742010900021572;
    classtype:trojan-activity;
    sid:2051140; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_02_28, deployment Perimeter, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_29;
)

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