Versions (4)
Version DetailsCurrent
Rev: 3 • Jun 12, 2023, 12:00 PMET INFO Observed DNS over HTTPS Domain in TLS SNI (doh .technochat .in)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed DNS over HTTPS Domain in TLS SNI (doh .technochat .in)"; flow:established,to_server; tls.sni; content:"doh.technochat.in"; bsize:17; fast_pattern; reference:url,github.com/curl/curl/wiki/DNS-over-HTTPS; classtype:misc-activity; sid:2046231; rev:3; metadata:affected_product Any, created_at 2023_06_12, deployment Perimeter, malware_family DoH, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_12_01, reviewed_at 2024_10_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1572, mitre_technique_name Protocol_Tunneling;)
Jun 12, 2023, 12:00 PM
Dec 1, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 21, 2025, 9:36 PM
rules/emerging-info.rules