alert dns $HOME_NET any -> any any (msg:"ET MALWARE PlugX Related Domain in DNS Lookup (cxks8 .com)"; dns.query; content:"cxks8.com"; fast_pattern; nocase; bsize:9; reference:md5,99ee1e21a34b0536b120d4a6977fd252; reference:url,twitter.com/0xrb/status/1508330395250868229; classtype:domain-c2; sid:2035627; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_03_28, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_28;)