ET MALWARE APT28 Zebrocy/Zekapab POST Template Structure

Query · suricata

flow:established,to_server;
threshold:type limit, count 1, seconds 30, track by_src;
http.method;
content:"POST";
http.uri;
content:".php";
http.user_agent;
content:"Mozilla|20|v5.1|20 28|Windows"; depth:21;
http.request_body;
content:"%0D%0AHost%20Name|3a|"; fast_pattern;
content:"%0D%0AOS%20Name|3a|";
content:"%0D%0AOS%20Configuration|3a|";
Raw source ET MALWARE APT28 Zebrocy/Zekapab POST Template Structure · 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 APT28 Zebrocy/Zekapab POST Template Structure";
    flow:established,to_server;
    threshold:type limit, count 1, seconds 30, track by_src;
    http.method;
    content:"POST";
    http.uri;
    content:".php";
    http.user_agent;
    content:"Mozilla|20|v5.1|20 28|Windows"; depth:21;
    http.request_body;
    content:"%0D%0AHost%20Name|3a|"; fast_pattern;
    content:"%0D%0AOS%20Name|3a|";
    content:"%0D%0AOS%20Configuration|3a|";
    reference:md5,961e79a33f432ea96d2c8bf9eb010006;
    classtype:targeted-activity;
    sid:2044217; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_03_28, deployment Perimeter, malware_family Zekapab, performance_impact Low, confidence High, signature_severity Major, tag Zebrocy, updated_at 2023_02_16, former_sid 2835618;
)

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