ET INFO Hide Referer Service (nullrefer .net)

Query · suricata

flow:established,to_client;
http.location;
content:"https://nullrefer.net/?"; fast_pattern; startswith;
Raw source ET INFO Hide Referer Service (nullrefer .net) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET INFO Hide Referer Service (nullrefer .net)";
    flow:established,to_client;
    http.location;
    content:"https://nullrefer.net/?"; fast_pattern; startswith;
    classtype:misc-activity;
    sid:2059249; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2025_01_14, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2025_01_14;
)

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