ET USER_AGENTS Suspicious User Agent (KtulhuBrowser)

Query · suricata

flow:established,to_server;
http.user_agent; bsize:13;
content:"KtulhuBrowser"; nocase;
Raw source ET USER_AGENTS Suspicious User Agent (KtulhuBrowser) · 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 (KtulhuBrowser)";
    flow:established,to_server;
    http.user_agent; bsize:13;
    content:"KtulhuBrowser"; nocase;
    classtype:bad-unknown;
    sid:2029750; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2020_03_27, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_19;
)

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