Versions (5)
Version DetailsCurrent
Rev: 3 • Oct 4, 2021, 12:00 PMET MALWARE Observed Cobalt Strike CnC Domain (sazoya .com in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Cobalt Strike CnC Domain (sazoya .com in TLS SNI)"; flow:established,to_server; tls.sni; content:"sazoya.com"; bsize:10; fast_pattern; reference:url,thedfirreport.com/2021/10/04/bazarloader-and-the-conti-leaks; classtype:domain-c2; sid:2034100; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_10_04, deployment Perimeter, confidence High, signature_severity Major, tag SSL_TLS_SNI, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_07, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Oct 4, 2021, 12:00 PM
Mar 7, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 8, 2025, 9:34 PM
rules/emerging-malware.rules