alert dns $HOME_NET any -> any any (msg:"ET MALWARE Win32/Spy.Obator .onion Proxy Domain"; dns.query; content:"t2upiokua37wq2cx"; depth:16; nocase; fast_pattern; reference:url,kernelmode.info/forum/viewtopic.php?f=16&t=3671; classtype:trojan-activity; sid:2020168; rev:4; metadata:created_at 2015_01_13, malware_family Win32_Spy_Obator, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_01;)