HighSigmaHQ Borna Talebi

Powershell Add Name Resolution Policy Table Rule

Detects powershell scripts that adds a Name Resolution Policy Table (NRPT) rule for the specified namespace. This will bypass the default DNS server and uses a specified server for answering the query.

Detection logic

Detection requirements

Platform: Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: ps_script

Known benign triggers

Unknown

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
learn.microsoft.com/en-us/powershell/module/dnsclient/add-dnsclientnrptrule?view=windowsserver2022-ps	Product documentation	Only this detection cites it
twitter.com/NathanMcNulty/status/1569497348841287681	Social post	Only this detection cites it

Detection rules

Powershell Add Name Resolution Policy Table Rule

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules