Query: detection rule: Detects creation of new ".dll" files inside the plugins directory of a notepad++ installation by a process other than "g
Matching passage: Sigma rule: Detects creation of new ".dll" files inside the plugins directory of a notepad++ installation by a process other than "g. Logsource: windows / file_event. Rule: 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: 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
Near-miss passage: Sigma rule: Detects tampering of the Vulnerable Driver Blocklist registry via command line tools such as PowerShell or REG.EXE. The. Logsource: windows / process_creation. Rule: title: Vulnerable Driver Blocklist Registry Tampering Via CommandLine id: 22154f0e-5132-4a54-aa78-cc62f6def531 related: - id: d526c60a-e236-4011-b165-831ffa52ab70 type: similar status: experimental description: 'Detects tampering of the Vulnerable Driver Blocklist registry via command line tools such as PowerShell or REG.EXE. The Vulnerable Driver Blocklist is a security feature that helps prevent the loading of known vulnerable drivers. Disabling this feature may indicate an attempt to bypass security controls, often targeted by threat actors to facilitate the installation of malicious or vulnerable drivers, particularly in scenarios involving Endpoint Detection and Response ' references: - https://www.sophos.com/en-us/blog/sharpening-the-knife-gold-blades-strategic-evolution - https://learn.microsoft.com/en-us/windows/security/application-security/application-control/app-control-for-business/design/microsoft-recommended-driver-block-rules author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2026-01-26 tags: - attack.defense-impairment - attack.t1685 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: - \powershell.exe - \pwsh.exe - \reg.exe - OriginalFileName: - PowerShell.EXE - pwsh.dll - reg.exe selection_cli_1: CommandLine|contains: - 'add ' - 'New-ItemProperty ' - 'Set-ItemProperty ' - 'si ' selection_cli_2: CommandLine|contains|all: - \Control\CI\Config - VulnerableDriverBlocklistEnable condition: all of selection_* falsepositives: - It is very unlikely for legitimate activities to disable the Vulnerable Driver Blocklist via command line tools; thus it is recommended to investigate promptly. level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_vulnerable_driver_blocklist_registry_tampering/info.yml