ET MALWARE Win32/0xtaRAT CnC Activity M3 (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?GUID="; fast_pattern;
content:"&SYS="; distance:25; within:5;
content:"|7c|";
http.header_names;
content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|Cache-Control|0d 0a 0d 0a|"; bsize:37;
target:src_ip;
target:src_ip;
Raw source ET MALWARE Win32/0xtaRAT CnC Activity M3 (GET) · 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 Win32/0xtaRAT CnC Activity M3 (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?GUID="; fast_pattern;
    content:"&SYS="; distance:25; within:5;
    content:"|7c|";
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|Cache-Control|0d 0a 0d 0a|"; bsize:37;
    target:src_ip;
    reference:md5,6ac414fad3d61ad5b23c2bcdd8ee797f;
    reference:url,research.checkpoint.com/2023/operation-silent-watch-desktop-surveillance-in-azerbaijan-and-armenia;
    classtype:trojan-activity;
    sid:2046184; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2023_06_09, deployment Perimeter, deployment SSLDecrypt, malware_family Win32_0xtaRAT, performance_impact Low, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_01_31;
    target:src_ip;
)

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