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SID: 2021371 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 6Jun 30, 2015, 12:00 PM

ET POLICY Possible External IP Lookup www.whatsmyip.us

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Possible External IP Lookup www.whatsmyip.us"; flow:established,to_server; http.host; content:"www.whatsmyip.us"; fast_pattern; bsize:16; classtype:external-ip-check; sid:2021371; rev:6; metadata:attack_target Client_Endpoint, created_at 2015_06_30, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_11_26, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1614, mitre_technique_name System_Location_Discovery;)

Jun 30, 2015, 12:00 PM

Nov 26, 2024, 12:00 PM

Sep 21, 2024, 3:00 AM

Feb 16, 2026, 10:35 PM

rules/emerging-policy.rules