heroui logo

LSA PPL Protection Disabled Via Reg.EXE

Sigma Rules

View Source
Summary
This rule aims to detect attempts to disable Protected Process Light (PPL) protection for the Local Security Authority (LSA) using the Windows Registry Editor (`reg.exe`). PPL is a security feature in Windows designed to enhance the protection of critical system processes such as LSA, which is responsible for enforcing security policies. Specific command-line activities involving `reg.exe` are monitored for indicator patterns suggesting an alteration of the LSA configuration by setting the `RunAsPPL` value to `0`. Detection is confirmed when the detection conditions, which include both the presence of the `reg.exe` executable and specific command-line arguments related to modifying the LSA settings, are met. The use of these command-line arguments to disable PPL could indicate unauthorized attempts to compromise the security of system processes.
Categories
  • Windows
  • Endpoint
Data Sources
  • Process
  • Command
Created: 2022-03-22