alert dns $HOME_NET any -> any any (msg:"ET INFO Tunneling Service in DNS Lookup (* .ply .gg)"; dns.query; dotprefix; content:".ply.gg"; nocase; endswith; classtype:misc-activity; sid:2054989; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_08_07, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_08_07, reviewed_at 2025_01_06;)