Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED Observed EvasivePanda/Daggerfly APT Domain (devicebug .com) in TLS SNI"; flow:established,to_server; tls.sni; dotprefix; content:".devicebug.com"; endswith; fast_pattern; reference:url,www.welivesecurity.com/en/eset-research/evasive-panda-leverages-monlam-festival-target-tibetans/; classtype:trojan-activity; sid:2051520; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Mac_OSX, affected_product Windows_11, attack_target Client_Endpoint, created_at 2024_03_07, deployment Perimeter, former_category MALWARE, malware_family EvasivePanda, malware_family Nightdoor, performance_impact Low, confidence High, signature_severity Major, updated_at 2025_07_14, reviewed_at 2025_07_14;)