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Rev: 1 • Apr 8, 2024, 12:00 PMET MALWARE Observed MuddyWater APT Related Domain (googleonlinee .com in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed MuddyWater APT Related Domain (googleonlinee .com in TLS SNI)"; flow:established,to_server; tls.sni; bsize:17; content:"googleonlinee.com"; fast_pattern; reference:md5,3dd1f91f89dc70e90f7bc001ed50c9e7; reference:url,www.deepinstinct.com/blog/darkbeatc2-the-latest-muddywater-attack-framework; classtype:domain-c2; sid:2051953; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_04_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_08, reviewed_at 2024_05_08, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Apr 8, 2024, 12:00 PM
Apr 8, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 12, 2025, 9:34 PM
rules/emerging-malware.rules