ET RETIRED Win32/TrojanDownloader.Agent.GEM Maldoc Remote Template Request M1

Query · suricata

flow:to_server,established;
http.method;
content:"GET";
http.uri;
content:"/ACMS/"; fast_pattern;
content:"?"; distance:16; within:10;
pcre:"/[a-z0-9]{8}\/.*\?[a-z0-9]{3,10}=[a-z0-9]{8,11}$/Ui";
Raw source ET RETIRED Win32/TrojanDownloader.Agent.GEM Maldoc Remote Template Request 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 -> $EXTERNAL_NET any (
    msg:"ET RETIRED Win32/TrojanDownloader.Agent.GEM Maldoc Remote Template Request M1";
    flow:to_server,established;
    http.method;
    content:"GET";
    http.uri;
    content:"/ACMS/"; fast_pattern;
    content:"?"; distance:16; within:10;
    pcre:"/[a-z0-9]{8}\/.*\?[a-z0-9]{3,10}=[a-z0-9]{8,11}$/Ui";
    reference:url,mp.weixin.qq.com/s/kcIaoB8Yta1zI6Py-uxupA;
    classtype:trojan-activity;
    sid:2035901; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2022_04_12, deployment Perimeter, former_category MALWARE, malware_family Lazarus, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;
)

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