ET RETIRED Suspected Andariel RexPot CnC Checkin M1

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.content_type;
content:"application/x-www-form-urlencoded";
http.user_agent;
content:"Mozilla/88.0";
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
http.request_body;
content:"mpVI="; fast_pattern; startswith;
target:src_ip;
Raw source ET RETIRED Suspected Andariel RexPot CnC Checkin M1 · 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 RETIRED Suspected Andariel RexPot CnC Checkin M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.content_type;
    content:"application/x-www-form-urlencoded";
    http.user_agent;
    content:"Mozilla/88.0";
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    http.request_body;
    content:"mpVI="; fast_pattern; startswith;
    reference:md5,842b0d0eb01716a9f526acd866d8bad3;
    reference:url,twitter.com/h2jazi/status/1681426768597778440;
    classtype:trojan-activity;
    sid:2046881; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_07_21, deployment Perimeter, former_category MALWARE, malware_family RexPot, performance_impact Low, confidence High, signature_severity Major, tag Andariel, updated_at 2025_04_17, reviewed_at 2025_04_17;
    target:src_ip;
)

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