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CLI Versions

Newest: 2.0.2

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Active Rule

Potential Persistence Via Notepad++ Plugins

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

Potential Persistence Via Notepad++ Plugins

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: Potential Persistence Via Notepad++ Plugins
id: 54127bd4-f541-4ac3-afdb-ea073f63f692
status: test
description: Detects creation of new ".dll" files inside the plugins directory of a notepad++ installation by a process other than "gup.exe". Which could indicates possible persistence
references:
    - https://pentestlab.blog/2022/02/14/persistence-notepad-plugins/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-06-10
modified: 2025-09-01
tags:
    - attack.persistence
logsource:
    product: windows
    category: file_event
detection:
    selection:
        TargetFilename|contains: '\Notepad++\plugins\'
        TargetFilename|endswith: '.dll'
    filter_gup:
        Image|endswith: '\Notepad++\updater\gup.exe'
    filter_install:
        # This filter is for Sigma dataset you could remove it or change when using the rule in your own env
        Image|startswith: 'C:\Users\'
        Image|contains: '\AppData\Local\Temp\'
        Image|endswith:
            - '\target.exe'
            - 'Installer.x64.exe'
    filter_main_installer:
        Image|contains: '\npp.'
        Image|endswith: '.exe'
        TargetFilename:
            - 'C:\Program Files\Notepad++\plugins\NppExport\NppExport.dll'
            - 'C:\Program Files\Notepad++\plugins\mimeTools\mimeTools.dll'
            - 'C:\Program Files\Notepad++\plugins\NppConverter\NppConverter.dll'
            - 'C:\Program Files\Notepad++\plugins\Config\nppPluginList.dll'
    condition: selection and not 1 of filter_*
falsepositives:
    - Possible FPs during first installation of Notepad++
    - Legitimate use of custom plugins by users in order to enhance notepad++ functionalities
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_notepad_plus_plus_persistence.yml