ET HUNTING CloudFlare Trace Site

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.host; bsize:18;
content:"www.cloudflare.com";
http.uri; bsize:14;
content:"/cdn-cgi/trace"; fast_pattern;
Raw source ET HUNTING CloudFlare Trace Site · 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 HUNTING CloudFlare Trace Site";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.host; bsize:18;
    content:"www.cloudflare.com";
    http.uri; bsize:14;
    content:"/cdn-cgi/trace"; fast_pattern;
    classtype:trojan-activity;
    sid:2054229; rev:1;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_07_02, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Low, signature_severity Minor, updated_at 2024_07_02;
)

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