Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
This studio is built around Phoenix's own rule corpus, not a blank editor. Search by title or rule id, choose a live sigma-cli backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,707
Ready to search
Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
Powershell Add Name Resolution Policy Table Rule
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Powershell Add Name Resolution Policy Table Rule
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Powershell Add Name Resolution Policy Table Rule
id: 4368354e-1797-463c-bc39-a309effbe8d7
status: test
description: |
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.
references:
- https://twitter.com/NathanMcNulty/status/1569497348841287681
- https://learn.microsoft.com/en-us/powershell/module/dnsclient/add-dnsclientnrptrule?view=windowsserver2022-ps
author: Borna Talebi
date: 2021-09-14
modified: 2022-10-09
tags:
- attack.impact
- attack.t1565
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection:
ScriptBlockText|contains|all:
- 'Add-DnsClientNrptRule'
- '-Namesp'
- '-NameSe'
condition: selection
falsepositives:
- Unknown
level: high
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/powershell/powershell_script/posh_ps_add_dnsclient_rule.yml