alert dns $HOME_NET any -> any any (msg:"ET INFO External IP Lookup Domain (freegeiop .net in DNS lookup)"; dns.query; content:"freegeoip.net"; nocase; endswith; fast_pattern; classtype:external-ip-check; sid:2036860; rev:6; metadata:attack_target Client_Endpoint, created_at 2017_03_10, 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;)