alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Malicious TDS Domain Domain in TLS SNI (packedbrick .com)"; flow:established,to_server; tls.sni; bsize:15; content:"packedbrick.com"; fast_pattern; classtype:exploit-kit; sid:2054719; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2024_07_29, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag ta569, tag TDS, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_09, reviewed_at 2024_12_11, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)