alert dns $HOME_NET any -> any any (msg:"ET MALWARE 9002 RAT C&C DNS request"; dns.query; content:"cache.dnsde.com"; depth:15; fast_pattern; nocase; endswith; classtype:command-and-control; sid:2020713; rev:6; metadata:created_at 2015_03_19, deprecation_reason Age, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_01, reviewed_at 2024_04_01;)