ET USER_AGENTS Suspicious User-Agent (Windows 8)

Query · suricata

flow:to_server,established;
http.user_agent;
content:"Windows 8"; depth:9;
threshold:type limit, count 1, seconds 600, track by_src;
Raw source ET USER_AGENTS Suspicious User-Agent (Windows 8) · 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 USER_AGENTS Suspicious User-Agent (Windows 8)";
    flow:to_server,established;
    http.user_agent;
    content:"Windows 8"; depth:9;
    threshold:type limit, count 1, seconds 600, track by_src;
    classtype:bad-unknown;
    sid:2026520; rev:3;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_10_18, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_10;
)

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