Sigma rule: Write Protect For Storage Disabled

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-666b8793971d, updated 2024-01-18T00:00:00.000Z.

Rule

Title
Write Protect For Storage Disabled
Status
test
Level
medium
Author
Sreeman
Date
2021-06-11
Modified
2024-01-18
File
rules/windows/process_creation/proc_creation_win_reg_write_protect_for_storage_disabled.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects applications trying to modify the registry in order to disable any write-protect property for storage devices.
This could be a precursor to a ransomware attack and has been an observed technique used by cypherpunk group.

Log source

product
windows
category
process_creation

Detection

selection:
    CommandLine|contains|all:
        - '\System\CurrentControlSet\Control'
        - 'Write Protection'
        - '0'
        - 'storage'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.defense-impairment
  • attack.t1685

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_reg_write_protect_for_storage_disabled.yml

Sources and licences

  • SigmaHQ

    "Write Protect For Storage Disabled" by Sreeman (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_reg_write_protect_for_storage_disabled.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Write Protect For Storage Disabled",
entity page, dataset version ref-666b8793971d, updated 2024-01-18T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/75f7a0e2-7154-4c4d-9eae-5cdb4e0a5c13 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 75f7a0e2-7154-4c4d-9eae-5cdb4e0a5c13, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.