ET MALWARE ZeitLoader IP Address Check User-Agent (TimeClient/1.0)

Query · suricata

flow:established,to_server;
http.user_agent; bsize:14;
content:"TimeClient|2f|1|2e|0";
Raw source ET MALWARE ZeitLoader IP Address Check User-Agent (TimeClient/1.0) · Suricata
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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 ZeitLoader IP Address Check User-Agent (TimeClient/1.0)";
    flow:established,to_server;
    http.user_agent; bsize:14;
    content:"TimeClient|2f|1|2e|0";
    reference:md5,eb5bd49b6eef60ff85892ef7c8015b01;
    classtype:trojan-activity;
    sid:2066365; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2025_12_18, deployment Perimeter, malware_family ZeitLoader, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_12_18;
)

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