Rule History

SID: 2029836 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 3 • Apr 8, 2020, 12:00 PM

Message:

ET POLICY Observed DNS Query to KnowBe4 Simulated Phish Domain

Rule:

alert dns $HOME_NET any -> any any (msg:"ET POLICY Observed DNS Query to KnowBe4 Simulated Phish Domain"; dns.query; content:".microransom.us"; nocase; endswith; threshold:type limit, track by_src, count 1, seconds 120; classtype:credential-theft; sid:2029836; rev:3; 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, reviewed_at 2024_05_06;)

Created:

Apr 8, 2020, 12:00 PM

Updated:

Dec 23, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-policy.rules