Versions (5)
Version DetailsCurrent
Rev: 7 • Jun 8, 2015, 12:00 PMET POLICY Possible External IP Lookup whoer.net
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Possible External IP Lookup whoer.net"; flow:established,to_server; http.host; content:"whoer.net"; fast_pattern; bsize:9; http.header_names; content:!"Referer|0d 0a|"; classtype:external-ip-check; sid:2021195; rev:7; metadata:attack_target Client_Endpoint, created_at 2015_06_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag IP_address_lookup_website, updated_at 2024_11_26, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1614, mitre_technique_name System_Location_Discovery;)
Jun 8, 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