Versions (4)
Version DetailsCurrent
Rev: 1 • Jul 1, 2021, 12:00 PMET INFO Observed External IP Lookup Domain (api .2ip .ua in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed External IP Lookup Domain (api .2ip .ua in TLS SNI)"; flow:established,to_server; tls.sni; content:"api.2ip.ua"; bsize:10; fast_pattern; classtype:bad-unknown; sid:2033214; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_07_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2021_07_01, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1614, mitre_technique_name System_Location_Discovery;)
Jul 1, 2021, 12:00 PM
Jul 1, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Feb 16, 2026, 10:35 PM
rules/emerging-info.rules