Detection rules › Sigma
UEFI Persistence Via Wpbbin - ProcessCreation
Detects execution of the binary "wpbbin" which is used as part of the UEFI based persistence method described in the reference section
Known false positives
- Legitimate usage of the file by hardware manufacturer such as lenovo (Thanks @0gtweet for the tip)
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | |
| Stealth |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
| Security-Auditing | Event ID 4688: A new process has been created. |
Rule body
title: UEFI Persistence Via Wpbbin - ProcessCreation
id: 4abc0ec4-db5a-412f-9632-26659cddf145
status: test
description: Detects execution of the binary "wpbbin" which is used as part of the UEFI based persistence method described in the reference section
references:
- https://grzegorztworek.medium.com/using-uefi-to-inject-executable-files-into-bitlocker-protected-drives-8ff4ca59c94c
- https://persistence-info.github.io/Data/wpbbin.html
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-07-18
tags:
- attack.persistence
- attack.stealth
- attack.t1542.001
logsource:
product: windows
category: process_creation
detection:
selection:
Image: 'C:\Windows\System32\wpbbin.exe'
condition: selection
falsepositives:
- Legitimate usage of the file by hardware manufacturer such as lenovo (Thanks @0gtweet for the tip)
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image: 'C:\Windows\System32\wpbbin.exe'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Image | eq |
| field:"Image" kind:eq value:"C:\Windows\System32\wpbbin.exe" |