ET MALWARE Win32/0xtaRAT CnC Activity M5 (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri.raw;
content:"//"; startswith;
http.uri;
content:".php?GUID=";
isdataat:!37,relative;
http.request_body;
content:"name=|22|file|22 3b 20|filename=|22|_screenshot_"; fast_pattern;
http.header_names;
content:!"Referer|0d 0a|";
target:src_ip;
Raw source ET MALWARE Win32/0xtaRAT CnC Activity M5 (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 Win32/0xtaRAT CnC Activity M5 (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri.raw;
    content:"//"; startswith;
    http.uri;
    content:".php?GUID=";
    isdataat:!37,relative;
    http.request_body;
    content:"name=|22|file|22 3b 20|filename=|22|_screenshot_"; fast_pattern;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:md5,a1a39e458977aa512b7ff2ba1995b18d;
    reference:url,research.checkpoint.com/2023/operation-silent-watch-desktop-surveillance-in-azerbaijan-and-armenia;
    classtype:trojan-activity;
    sid:2046186; rev:1;
    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 2023_06_09;
    target:src_ip;
)

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