Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TrustConnect Domain in TLS SNI (primerelays .com)"; flow:established,to_server; tls.sni; dotprefix; content:".primerelays.com"; endswith; fast_pattern; classtype:trojan-activity; sid:2067875; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_02_23, deployment Perimeter, malware_family TrustConnect, confidence High, signature_severity Critical, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_02_23;)