Detection rules › Sigma

UEFI Persistence Via Wpbbin - FileCreation

Severity
high
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

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

MITRE ATT&CK coverage

TacticTechniques
PersistenceT1542.001 Pre-OS Boot: System Firmware
Defense EvasionT1542.001 Pre-OS Boot: System Firmware

Event coverage

ProviderEvent IDTitle
Sysmon11FileCreate

Stages and Predicates

Stage 1: selection

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

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
TargetFilenameeq
  • C:\Windows\System32\wpbbin.exe