alert dns $HOME_NET any -> any any (msg:"ET MALWARE DNS Query for DNSpionage CnC Domain"; dns.query; content:".0ffice36o.com"; nocase; endswith; reference:md5,c00c9f6ebf2979292d524acff19dd306; classtype:command-and-control; sid:2026557; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_26, deployment Perimeter, confidence High, signature_severity Major, tag DNSpionage, tag DNS_tunneling, updated_at 2020_09_16;)