alert tls $HOME_NET any -> $EXTERNAL_NET 443 (msg:"ET MALWARE BrushaLoader CnC Domain in SNI"; flow:to_server,established; tls.sni; content:"traderserviceinfo.info"; endswith; classtype:command-and-control; sid:2026900; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_02_12, deployment Perimeter, malware_family BrushaLoader, performance_impact Low, confidence High, signature_severity Major, tag SSL_TLS_SNI, updated_at 2020_09_16;)