ET INFO Observed Ordns DNS over HTTPS Domain (Ordns .he .net in TLS SNI)

SID: 2035858Rev: 20 views
History
Sourceet/open
CreatedApril 7, 2022
UpdatedApril 7, 2022
Classificationmisc-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Ordns DNS over HTTPS Domain (Ordns .he .net in TLS SNI)"; flow:established,to_server; threshold:type both, track by_src, count 1, seconds 600; tls.sni; content:"ordns.he.net"; endswith; reference:url,www.blackhillsinfosec.com/dns-over-https-for-cobalt-strike; classtype:misc-activity; sid:2035858; rev:2; metadata:created_at 2022_04_07, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_07;)

Metadata

created at2022_04_07
deploymentPerimeter
confidenceHigh
signature severityMinor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2022_04_07

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