ET POLICY External IP Lookup (ipify .org)

Query · suricata

flow:established,to_server;
http.uri;
content:"/?format="; depth:9;
http.host;
content:"api.ipify.org"; depth:13; endswith; fast_pattern;
Raw source ET POLICY External IP Lookup (ipify .org) · 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 POLICY External IP Lookup (ipify .org)";
    flow:established,to_server;
    http.uri;
    content:"/?format="; depth:9;
    http.host;
    content:"api.ipify.org"; depth:13; endswith; fast_pattern;
    classtype:policy-violation;
    sid:2029622; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_03_12, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2020_03_12, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1614, mitre_technique_name System_Location_Discovery;
)

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