alert dns $HOME_NET any -> any any (msg:"ET MALWARE SmugX Domain in DNS Lookup (jcswcd .com)"; dns.query; dotprefix; content:".jcswcd.com"; nocase; endswith; reference:url,research.checkpoint.com/2023/chinese-threat-actors-targeting-europe-in-smugx-campaign/; classtype:trojan-activity; sid:2046743; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_07_06, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_07_06;)