Query: detect Detects tampering of the Vulnerable Driver Blocklist registry via command line tools such as PowerShell or REG.EXE. The in logs
Matching 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
Near-miss passage: Sigma rule: Detects the execution of a renamed instance of the Remote Monitoring and Management (RMM) tool, MeshAgent. RMM tools suc. Logsource: windows / process_creation. Rule: title: Remote Access Tool - Renamed MeshAgent Execution - Windows id: b471f462-eb0d-4832-be35-28d94bdb4780 related: - id: bd3b5eaa-439d-4a42-8f35-a49f5c8a2582 type: similar - id: 2fbbe9ff-0afc-470b-bdc0-592198339968 type: derived status: experimental description: 'Detects the execution of a renamed instance of the Remote Monitoring and Management (RMM) tool, MeshAgent. RMM tools such as MeshAgent are commonly utilized by IT administrators for legitimate remote support and system management. However, malicious actors may exploit these tools by renaming them to bypass detection mechanisms, enabling unauthorized access and control over compromised systems. ' references: - https://www.huntress.com/blog/know-thy-enemy-a-novel-november-case-on-persistent-remote-access - https://thecyberexpress.com/ukraine-hit-by-meshagent-malware-campaign/ - https://wazuh.com/blog/how-to-detect-meshagent-with-wazuh/ - https://www.security.com/threat-intelligence/medusa-ransomware-attacks author: Norbert Jaśniewicz (AlphaSOC) date: 2025-05-19 tags: - attack.command-and-control - attack.stealth - attack.t1219.002 - attack.t1036.003 logsource: category: process_creation product: windows detection: selection_meshagent: - CommandLine|contains: --meshServiceName - OriginalFileName|contains: meshagent filter_main_legitimate: Image|endswith: \meshagent.exe condition: selection_meshagent and not 1 of filter_main_* falsepositives: - Unknown level: high