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Convert indexed Sigma rules into analyst-ready detections.
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CLI Versions
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Newest: 2.0.2
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Active Rule
PowerShell Module File Created By Non-PowerShell Process
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
PowerShell Module File Created By Non-PowerShell Process
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 Module File Created By Non-PowerShell Process
id: e3845023-ca9a-4024-b2b2-5422156d5527
status: test
description: Detects the creation of a new PowerShell module ".psm1", ".psd1", ".dll", ".ps1", etc. by a non-PowerShell process
references:
- Internal Research
- https://learn.microsoft.com/en-us/powershell/scripting/developer/module/understanding-a-windows-powershell-module?view=powershell-7.3
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-05-09
modified: 2025-10-07
tags:
- attack.persistence
logsource:
category: file_event
product: windows
detection:
selection:
TargetFilename|contains:
- '\WindowsPowerShell\Modules\'
- '\PowerShell\7\Modules\'
filter_main_pwsh:
Image|endswith:
- ':\Program Files\PowerShell\7-preview\pwsh.exe'
- ':\Program Files\PowerShell\7\pwsh.exe'
- ':\Windows\System32\poqexec.exe' # https://github.com/SigmaHQ/sigma/issues/4448
- ':\Windows\System32\WindowsPowerShell\v1.0\powershell_ise.exe'
- ':\Windows\System32\WindowsPowerShell\v1.0\powershell.exe'
- ':\Windows\SysWOW64\poqexec.exe' # https://github.com/SigmaHQ/sigma/issues/4448
- ':\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell_ise.exe'
- ':\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe'
filter_main_msiexec:
Image:
- 'C:\Windows\System32\msiexec.exe'
- 'C:\Windows\SysWOW64\msiexec.exe'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/file/file_event/file_event_win_powershell_module_uncommon_creation.yml