alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE IcedID CnC Domain in SNI"; flow:to_server,established; tls.sni; content:"gizasector.xyz"; endswith; classtype:domain-c2; sid:2030051; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_29, deployment Perimeter, malware_family IcedID, performance_impact Low, confidence High, signature_severity Major, tag SSL_TLS_SNI, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_29;)