ET POLICY Dropbox DNS Lookup - Possible Offsite File Backup in Use

Query · suricata

dns.query;
content:"client-lb.dropbox.com"; nocase; endswith;
Raw source ET POLICY Dropbox DNS Lookup - Possible Offsite File Backup in Use · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
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;
)

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