alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT TA569 Keitaro TDS Domain in TLS SNI (jqueryapishelpers .com)"; flow:established,to_server; tls.sni; bsize:21; content:"jqueryapishelpers.com"; fast_pattern; classtype:exploit-kit; sid:2063359; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2025_07_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Critical, tag Exploit_Kit, tag ta569, tag TDS, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, tag Keitaro, updated_at 2026_06_08, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)