Sigma rule: UEFI Persistence Via Wpbbin - FileCreation

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-b7ffc79d8543, updated 2022-07-18T00:00:00.000Z.

Rule

Title
UEFI Persistence Via Wpbbin - FileCreation
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-07-18
File
rules/windows/file/file_event/file_event_win_wpbbin_persistence.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects creation of a file named "wpbbin" in the "%systemroot%\system32\" directory. Which could be indicative of UEFI based persistence method

Log source

product
windows
category
file_event

Detection

selection:
    TargetFilename: 'C:\Windows\System32\wpbbin.exe'
condition: selection

False positives (as the rule lists them)

  • Legitimate usage of the file by hardware manufacturer such as lenovo (Thanks @0gtweet for the tip)

Tags

  • attack.persistence
  • attack.stealth
  • attack.t1542.001

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/file/file_event/file_event_win_wpbbin_persistence.yml

Sources and licences

  • SigmaHQ

    "UEFI Persistence Via Wpbbin - FileCreation" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/file/file_event/file_event_win_wpbbin_persistence.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: UEFI Persistence Via Wpbbin - FileCreation",
entity page, dataset version ref-b7ffc79d8543, updated 2022-07-18T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/e94b9ddc-eec5-4bb8-8a58-b9dc5f4e185f (accessed 2026-11-03).
Underlying source: SigmaHQ rule e94b9ddc-eec5-4bb8-8a58-b9dc5f4e185f, 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.