Versions (4)
Version DetailsCurrent
Rev: 1 • Feb 9, 2024, 12:00 PMET MALWARE Observed TA455 Domain in TLS SNI (teledyneflir.com .de)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TA455 Domain in TLS SNI (teledyneflir.com .de)"; flow:established,to_server; tls.sni; dotprefix; content:".teledyneflir.com.de"; endswith; fast_pattern; classtype:trojan-activity; sid:2051164; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_02_09, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag TA455, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_29, former_sid 2856338, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Feb 9, 2024, 12:00 PM
Feb 29, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 13, 2025, 9:35 PM
rules/emerging-malware.rules