alert dns $HOME_NET any -> any any (msg:"ET EXPLOIT_KIT Coruna EK Domain in DNS Lookup (xie .rpreh .com)"; reference:url,cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit/; classtype:exploit-kit; sid:2072568; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_10_23, deployment Perimeter, malware_family Coruna, performance_impact Low, confidence High, signature_severity Critical, tag Exploit_Kit, tag compromised_website, updated_at 2026_10_23, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)