ET INFO External IP Address Lookup Domain (get .geojs .io) in TLS SNI
Sourceet/open
Fileemerging-info.rules
CreatedOctober 28, 2022
UpdatedMarch 26, 2024
Classificationexternal-ip-check
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO External IP Address Lookup Domain (get .geojs .io) in TLS SNI"; flow:established,to_server ; tls.sni; bsize:12; content:"get.geojs.io"; fast_pattern; classtype:external-ip-check; sid:2039595; rev:2; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2022_10_28, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_26, reviewed_at 2025_04_17;)
Metadata
affected productAny
attack targetClient_Endpoint
created at2022_10_28
deploymentPerimeter
performance impactLow
confidenceHigh
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2024_03_26
reviewed at2025_04_17
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