Versions (6)
Version DetailsCurrent
Rev: 1 • Mar 4, 2024, 12:00 PMET DELETED TA453 Domain in TLS SNI
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED TA453 Domain in TLS SNI"; flow:established,to_server; tls.sni; dotprefix; content:".d75.site"; endswith; fast_pattern; reference:url,cloud.google.com/blog/topics/threat-intelligence/untangling-iran-apt42-operations; classtype:misc-activity; sid:2052446; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_03_04, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_06, reviewed_at 2024_07_30;)
Mar 4, 2024, 12:00 PM
May 6, 2024, 12:00 PM
Dec 3, 2024, 4:00 PM
Aug 11, 2025, 10:35 PM
rules/emerging-deleted.rules