
Summary
This detection rule identifies potential DLL sideloading attempts involving the file "CCleanerReactivator.dll". DLL sideloading is a technique used by malicious actors to exploit the legitimate applications to execute unauthorized code by loading a manipulated or malicious DLL instead of the expected one. The rule specifically targets instances where the specified DLL is loaded under conditions that are inconsistent with the normal operation of the application. To achieve this, the rule evaluates logs for image loading events where the loaded DLL ends with "CCleanerReactivator.dll" while ensuring that it does not originate from the main application path of "CCleanerReactivator.exe". The rule is structured to minimize false positives by checking that the DLL is not loaded from common legitimate paths. However, users should remain cautious as false positives may arise from alternative installation paths for CCleaner. The rule falls under several attack techniques related to defense evasion, persistence, and privilege escalation, indicating its relevance in combating advanced threats.
Categories
- Windows
- Endpoint
Data Sources
- Image
Created: 2023-07-13