alert dns $HOME_NET any -> any any (msg:"ET INFO Proxy Domain in DNS Lookup (proxynet .io)"; dns.query; dotprefix; content:".proxynet.io"; nocase; endswith; classtype:misc-activity; sid:2035757; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_05, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_05;)