alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed UAC-0173 Related Domain (minijusfil .com in TLS SNI)"; flow:established,to_server; tls.sni; bsize:14; content:"minijusfil.com"; fast_pattern; reference:md5,665827a302f1d1ece571e7fc131f9a2d; reference:url,cert.gov.ua/article/5628441; classtype:domain-c2; sid:2047903; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_09_05, deployment Perimeter, deprecation_reason Age, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_04, reviewed_at 2023_12_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)