Versions (4)
Version DetailsCurrent
Rev: 1 • Jan 9, 2023, 12:00 PMET INFO External IP Lookup Domain in DNS Query (checkip .dyndns .org)
alert dns $HOME_NET any -> any any (msg:"ET INFO External IP Lookup Domain in DNS Query (checkip .dyndns .org)"; dns.query; content:"checkip.dyndns.org"; nocase; bsize:18; classtype:external-ip-check; sid:2043238; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_01_09, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_01_09, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1614, mitre_technique_name System_Location_Discovery;)
Jan 9, 2023, 12:00 PM
Jan 9, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Feb 16, 2026, 10:35 PM
rules/emerging-info.rules