alert dns $HOME_NET any -> any any (msg:"ET MALWARE IcedID CnC Domain in DNS Lookup"; dns.query; dotprefix; content:".likratoka.com"; nocase; endswith; classtype:domain-c2; sid:2049707; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_12_15, deployment Perimeter, performance_impact Significant, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_15;)