ET USER_AGENTS Suspicious User-Agent (MyAgent)

Query · suricata

flow:to_server,established;
threshold:type limit, count 2, track by_src, seconds 300;
http.header;
content:!"www.google-analytics.com";
http.user_agent;
content:"MyAgent"; depth:7; fast_pattern;
http.host;
content:!"driverdl.lenovo.com.cn";
Raw source ET USER_AGENTS Suspicious User-Agent (MyAgent) · 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 USER_AGENTS Suspicious User-Agent (MyAgent)";
    flow:to_server,established;
    threshold:type limit, count 2, track by_src, seconds 300;
    http.header;
    content:!"www.google-analytics.com";
    http.user_agent;
    content:"MyAgent"; depth:7; fast_pattern;
    http.host;
    content:!"driverdl.lenovo.com.cn";
    classtype:trojan-activity;
    sid:2005320; rev:16;
    metadata:affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2021_06_15;
)

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