Versions (4)
Version DetailsCurrent
Rev: 2 • Nov 30, 2021, 12:00 PMET INFO Observed DNS Query to Commonly Abused Preview Domain (preview-domain .com)
alert dns $HOME_NET any -> any any (msg:"ET INFO Observed DNS Query to Commonly Abused Preview Domain (preview-domain .com)"; dns.query; dotprefix; content:".preview-domain.com"; nocase; endswith; classtype:bad-unknown; sid:2034561; rev:2; metadata:attack_target Client_Endpoint, created_at 2021_11_30, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_21;)
Nov 30, 2021, 12:00 PM
Nov 21, 2022, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 8, 2025, 9:34 PM
rules/emerging-info.rules