alert dns $HOME_NET any -> any any (msg:"ET MALWARE Scarlet Mimic DNS Lookup 12"; dns_query; content:"clean.popqueen.cloudns.org"; depth:26; nocase; endswith; fast_pattern; reference:url,researchcenter.paloaltonetworks.com/2016/01/scarlet-mimic-years-long-espionage-targets-minority-activists/; classtype:trojan-activity; sid:2022422; rev:4; metadata:created_at 2016_01_27, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_09_28;)