Versions (3)
Version DetailsCurrent
Rev: 2 • Apr 8, 2020, 12:00 PMET POLICY Observed DNS Query to KnowBe4 Simulated Phish Domain
alert dns $HOME_NET any -> any any (msg:"ET POLICY Observed DNS Query to KnowBe4 Simulated Phish Domain"; dns_query; content:".authentication.directory"; nocase; isdataat:!1,relative; threshold:type limit, track by_src, count 1, seconds 120; classtype:credential-theft; sid:2029834; rev:2; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, confidence High, signature_severity Minor, updated_at 2021_12_23;)
Apr 8, 2020, 12:00 PM
Dec 23, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-policy.rules