ET MALWARE Win32/MagicRAT CnC Activity M2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.request_body;
content:"session="; startswith;
content:"&type=windows"; distance:0; fast_pattern;
content:"&id=";
content:!"&"; distance:0;
threshold:type limit, count 1, seconds 300, track by_src;
Raw source ET MALWARE Win32/MagicRAT CnC Activity M2 · 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/MagicRAT CnC Activity M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.request_body;
    content:"session="; startswith;
    content:"&type=windows"; distance:0; fast_pattern;
    content:"&id=";
    content:!"&"; distance:0;
    threshold:type limit, count 1, seconds 300, track by_src;
    reference:url,blog.talosintelligence.com/2022/09/lazarus-magicrat.html;
    reference:md5,5c6f9c83426c6d33ff2d4e72c039b747;
    classtype:trojan-activity;
    sid:2038797; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_02_10, deployment Perimeter, malware_family MagicRAT, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_09;
)

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