alert dns $HOME_NET any -> any any (msg:"ET MALWARE PadCrypt .onion Payment Domain"; dns_query; content:"gnkltbsaeq35rejl"; depth:16; fast_pattern; nocase; reference:md5,b6d25a5629221041e857266b9188ea3b; classtype:trojan-activity; sid:2022569; rev:3; metadata:created_at 2016_02_26, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_08_30;)