Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Lumma Stealer Related Domain (braidfadefriendklypk .site in TLS SNI)"; flow:established,to_server; tls.sni; bsize:25; content:"braidfadefriendklypk.site"; fast_pattern; reference:md5,69a206bb2df8317fbec59ad9f11ce190; classtype:domain-c2; sid:2050416; rev:2; metadata:attack_target Client_Endpoint, created_at 2024_01_24, deployment Perimeter, deprecation_reason Duplicate, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_01_25, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)