alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Cheana Stealer Domain (warpvpn .net) in TLS SNI"; flow:established,to_server; tls.sni; bsize:11; content:"warpvpn.net"; fast_pattern; reference:url,cyble.com/blog/new-cheana-stealer-targets-vpn-user/; classtype:trojan-activity; sid:2055444; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Mac_OSX, affected_product Linux, attack_target Client_Endpoint, created_at 2024_08_23, deployment Perimeter, malware_family Cheana_Stealer, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_08_23, reviewed_at 2024_10_04;)