alert dns $HOME_NET any -> any any (msg:"ET MALWARE Cryptbot CnC Domain in DNS Lookup (rzeight18pt .top)"; dns.query; dotprefix; content:".rzeight18pt.top"; nocase; endswith; reference:url,community.emergingthreats.net/t/cryptbot-stealer-update-on-rules/790/3; classtype:trojan-activity; sid:2054349; rev:2; metadata:attack_target Client_Endpoint, created_at 2024_07_05, deployment Perimeter, deprecation_reason Relevance, malware_family Cryptbot, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_04_21, reviewed_at 2025_04_21;)