ET DYN_DNS External IP Lookup Domain in DNS Query (checkip .dyndns .org)

7.0.35.0SID: 2043238Rev: 3Enabled14 views
Sourceet/open
Fileemerging-dyn_dns.rules
CreatedJanuary 9, 2023
UpdatedJune 11, 2024
Classificationexternal-ip-check
alert dns $HOME_NET any -> any any (msg:"ET DYN_DNS External IP Lookup Domain in DNS Query (checkip .dyndns .org)"; dns.query; bsize:18; content:"checkip.dyndns.org"; nocase; classtype:external-ip-check; sid:2043238; rev:3; metadata:attack_target Client_Endpoint, created_at 2023_01_09, deployment Perimeter, former_category INFO, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_06_11, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1614, mitre_technique_name System_Location_Discovery;)

Metadata

attack targetClient_Endpoint
created at2023_01_09
deploymentPerimeter
former categoryINFO
performance impactLow
confidenceHigh
signature severityInformational
updated at2024_06_11
mitre tactic idTA0007
mitre tactic nameDiscovery
mitre technique idT1614
mitre technique nameSystem_Location_Discovery

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