alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Glupteba CnC Domain (ggjump .ru in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".ggjump.ru"; endswith; fast_pattern; reference:md5,724980a41f765dd2a6ac137acd8d5ebb; classtype:domain-c2; sid:2046887; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_07_25, deployment Perimeter, malware_family Glupteba, confidence High, signature_severity Major, tag SSL_TLS_SNI, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)