Versions (3)
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Rev: 2 • Sep 5, 2023, 12:00 PMET MALWARE Observed TA444 Domain (ubi-safemeeting .live in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TA444 Domain (ubi-safemeeting .live in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".ubi-safemeeting.live"; endswith; fast_pattern; classtype:trojan-activity; sid:2047914; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_09_05, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_05, reviewed_at 2023_10_05, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Sep 5, 2023, 12:00 PM
Oct 5, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 19, 2025, 9:35 PM
rules/emerging-malware.rules