ET INFO External IP Lookup - ipleak .net

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.host;
content:"ipleak.net"; endswith; fast_pattern;
http.header_names;
content:!"|0d 0a|referer|0d 0a|"; nocase;
Raw source ET INFO External IP Lookup - ipleak .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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET INFO External IP Lookup - ipleak .net";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.host;
    content:"ipleak.net"; endswith; fast_pattern;
    http.header_names;
    content:!"|0d 0a|referer|0d 0a|"; nocase;
    classtype:misc-activity;
    sid:2072063; rev:1;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_09_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2026_09_17, mitre_tactic_id TA0043, mitre_tactic_name Reconnaissance, mitre_technique_id T1590, mitre_technique_name Gather_Victim_Network_Information;
)

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