alert dns $HOME_NET any -> any any (msg:"ET PHISHING TA427/Kimsuky Domain in DNS Lookup"; dns.query; bsize:12; content:"gkjoiup.site"; nocase; reference:url,www.cyberresilience.com/threatintel/apt-group-kimsuky-targets-university-researchers/; classtype:misc-activity; sid:2055044; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2024_08_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Kimsuky, tag TA427, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_08_09, reviewed_at 2025_01_06;)