ET USER_AGENTS User-Agent (Unknown)

Query · suricata

flow:to_server,established;
http.user_agent;
content:"Unknown"; depth:7; endswith;
Raw source ET USER_AGENTS User-Agent (Unknown) · 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 User-Agent (Unknown)";
    flow:to_server,established;
    http.user_agent;
    content:"Unknown"; depth:7; endswith;
    classtype:trojan-activity;
    sid:2007991; rev:10;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_16;
)

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