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
New Windows Firewall Rule Added Via New-NetFirewallRule Cmdlet - ScriptBlock
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
New Windows Firewall Rule Added Via New-NetFirewallRule Cmdlet - ScriptBlock
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: New Windows Firewall Rule Added Via New-NetFirewallRule Cmdlet - ScriptBlock
id: 8d31dd2e-b582-48ca-826e-dcaa2c1ca264
related:
- id: 51483085-0cba-46a8-837e-4416496d6971
type: similar
status: test
description: |
Detects when a powershell script contains calls to the "New-NetFirewallRule" cmdlet in order to add a new firewall rule with an "Allow" action.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1562.004/T1562.004.md#atomic-test-24---set-a-firewall-rule-using-new-netfirewallrule
- https://malware.news/t/the-rhysida-ransomware-activity-analysis-and-ties-to-vice-society/72170
- https://cybersecuritynews.com/rhysida-ransomware-attacking-windows/
author: frack113
date: 2024-05-10
tags:
- attack.defense-evasion
- attack.t1562.004
- detection.threat-hunting
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection:
ScriptBlockText|contains: 'New-NetFirewallRule*-Action*Allow'
condition: selection
falsepositives:
- Administrator script
level: low
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules-threat-hunting/windows/powershell/powershell_script/posh_ps_new_netfirewallrule_allow.yml