Versions (3)
Version DetailsCurrent
Rev: 1 • Feb 29, 2024, 12:00 PMET MALWARE Observed UNC1549/TA455 Domain (flighthelicopterahtest .azurewebsites .net in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed UNC1549/TA455 Domain (flighthelicopterahtest .azurewebsites .net in TLS SNI)"; flow:established,to_server; tls.sni; bsize:40; content:"flighthelicopterahtest.azurewebsites.net"; fast_pattern; reference:url,www.mandiant.com/resources/blog/suspected-iranian-unc1549-targets-israel-middle-east; classtype:social-engineering; sid:2051357; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_02_29, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_29, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Feb 29, 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