alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE HAMAS affiliated Domain in TLS SNI (admin .nikanps .top)"; flow:established,to_server; tls.sni; bsize:17; content:"admin.nikanps.top"; fast_pattern; reference:url,go.recordedfuture.com/hubfs/reports/cta-2023-1019.pdf; classtype:trojan-activity; sid:2048716; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_10_19, deployment Perimeter, deprecation_reason Age, performance_impact Low, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_01_02, reviewed_at 2024_01_02, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)