Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Winos4.0 Framework CnC Domain (ad59t82g .com in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".ad59t82g.com"; endswith; fast_pattern; reference:url,www.fortinet.com/blog/threat-research/threat-campaign-spreads-winos4-through-game-application; classtype:command-and-control; sid:2059977; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_02_07, deployment Perimeter, malware_family Winos4_0, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_02_07, reviewed_at 2025_04_15;)