Suspicious Disabling of Write Protect For Storage (via process_creation)

title: Suspicious Disabling of Write Protect For Storage (via process_creation)
id: e8c42ac4-79d1-50ce-80db-bbb3342ada98
status: stable
description: This rule detects applications trying to modify the registry to disable any write-protect property for storage devices. This could be a precursor to a ransomware attack and has been an observed method used by cypherpunk group.
references:
    - https://attack.mitre.org/techniques/T1685/
    - https://www.manageengine.com/products/desktop-central/os-imaging-deployment/media-is-write-protected.html
author: Huntrule Team
date: 2026-05-23
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    product: windows
    category: process_creation
detection:
    selection:
        CommandLine|contains|all:
            - '\System\CurrentControlSet\Control'
            - 'Write Protection'
            - '0'
            - 'storage'
    condition: selection
falsepositives:
    - Unknown
level: medium