Rule History

alert dns $HOME_NET any -> any any (msg:"ET POLICY Observed DNS Query to Commonly Abused Cloudflare Domain (trycloudflare .com)"; dns.query; dotprefix; content:".trycloudflare.com"; nocase; endswith; classtype:bad-unknown; sid:2034552; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_11_29, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_29;)