Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TA399 Domain (document-viewer .live) in TLS SNI"; flow:established,to_server; tls.sni; dotprefix; content:".document-viewer.live"; endswith; fast_pattern; classtype:trojan-activity; sid:2055691; rev:1; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2024_09_03, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag TA399, updated_at 2024_09_03, reviewed_at 2024_10_04;)