Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TrustConnect RAT Domain (trustconnectsoftware .com in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".trustconnectsoftware.com"; endswith; fast_pattern; classtype:trojan-activity; sid:2067352; rev:2; metadata:attack_target Client_Endpoint, created_at 2026_02_06, deployment Perimeter, malware_family TrustConnect, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_02_17;)