Versions (4)
Version DetailsCurrent
Rev: 1 • Apr 25, 2022, 12:00 PMET INFO File Sharing Domain in DNS Lookup (drive .protonmail .com)
alert dns $HOME_NET any -> any any (msg:"ET INFO File Sharing Domain in DNS Lookup (drive .protonmail .com)"; dns.query; content:"drive.protonmail.com"; nocase; bsize:20; classtype:bad-unknown; sid:2036353; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_04_25, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_25;)
Apr 25, 2022, 12:00 PM
Apr 25, 2022, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 3, 2025, 8:34 PM
rules/emerging-info.rules