Sigma rule: Potential Ransomware or Unauthorized MBR Tampering Via Bcdedit.EXE

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-46932b906ffe, updated 2023-02-15T00:00:00.000Z.

Rule

Title
Potential Ransomware or Unauthorized MBR Tampering Via Bcdedit.EXE
Status
test
Level
medium
Author
@neu5ron
Date
2019-02-07
Modified
2023-02-15
File
rules/windows/process_creation/proc_creation_win_bcdedit_susp_execution.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential malicious and unauthorized usage of bcdedit.exe

Log source

product
windows
category
process_creation

Detection

selection_img:
    - Image|endswith: '\bcdedit.exe'
    - OriginalFileName: 'bcdedit.exe'
selection_cli:
    CommandLine|contains:
        - 'delete'
        - 'deletevalue'
        - 'import'
        - 'safeboot'
        - 'network'
condition: all of selection_*

Tags

  • attack.stealth
  • attack.t1070
  • attack.persistence
  • attack.t1542.003

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_bcdedit_susp_execution.yml

Sources and licences

  • SigmaHQ

    "Potential Ransomware or Unauthorized MBR Tampering Via Bcdedit.EXE" by @neu5ron (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_bcdedit_susp_execution.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: Potential Ransomware or Unauthorized MBR Tampering Via Bcdedit.EXE",
entity page, dataset version ref-46932b906ffe, updated 2023-02-15T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/c9fbe8e9-119d-40a6-9b59-dd58a5d84429 (accessed 2026-11-03).
Underlying source: SigmaHQ rule c9fbe8e9-119d-40a6-9b59-dd58a5d84429, 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.