ET MALWARE TA398 AresRAT CnC Checkin (POST)

Query · suricata

flow:established,to_server;
urilen:<38;
http.method;
content:"POST";
http.uri;
content:"/root_"; fast_pattern;
pcre:"/^\x2f(?:api|uploads?)\x2froot_\d{10,18}\x2f(?:hello|letter|upload)$/";
http.request_body;
content:"|7b 22|username|22 3a 20 22|"; startswith;
content:"|22|platform|22 3a 20 22|"; distance:0;
content:"|22|hostname|22 3a|"; distance:0;
target:src_ip;
Raw source ET MALWARE TA398 AresRAT CnC Checkin (POST) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE TA398 AresRAT CnC Checkin (POST)";
    flow:established,to_server;
    urilen:<38;
    http.method;
    content:"POST";
    http.uri;
    content:"/root_"; fast_pattern;
    pcre:"/^\x2f(?:api|uploads?)\x2froot_\d{10,18}\x2f(?:hello|letter|upload)$/";
    http.request_body;
    content:"|7b 22|username|22 3a 20 22|"; startswith;
    content:"|22|platform|22 3a 20 22|"; distance:0;
    content:"|22|hostname|22 3a|"; distance:0;
    reference:url,x.com/Cyberteam008/status/1920423302683623728;
    reference:url,pastebin.com/xG0rWi9J;
    reference:md5,c8e319f97724c8b3b5ed27ca28849fd2;
    classtype:command-and-control;
    sid:2062174; rev:1;
    metadata:affected_product Linux, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_05_08, deployment Perimeter, malware_family AresRAT, performance_impact Low, confidence High, signature_severity Critical, tag c2, tag TA398, updated_at 2025_05_08, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)

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.