Rule History

alert dns $HOME_NET any -> any any (msg:"ET POLICY Dropbox DNS Lookup - Possible Offsite File Backup in Use"; dns.query; content:"client-lb.dropbox.com"; nocase; endswith; reference:url,dropbox.com; classtype:policy-violation; sid:2020565; rev:4; metadata:created_at 2015_02_25, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_15;)