alert dns $HOME_NET any -> any any (msg:"ET INFO DNS Query to File Sharing Domain (sync .com)"; dns.query; dotprefix; content:".sync.com"; nocase; endswith; classtype:misc-activity; sid:2051745; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_03_20, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_20;)