alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT ZPHP Domain in TLS SNI (ads-quantum .com)"; flow:established,to_server; tls.sni; bsize:15; content:"ads-quantum.com"; fast_pattern; reference:url,www.proofpoint.com/us/blog/threat-insight/are-you-sure-your-browser-date-current-landscape-fake-browser-updates; reference:url,infosec.exchange/@monitorsg/111970361168077622; classtype:exploit-kit; sid:2051026; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2024_02_21, deployment Perimeter, deprecation_reason Relevance, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_25, reviewed_at 2024_04_25;)