
Summary
This rule detects unauthorized use of renamed Sysinternals tools. It specifically focuses on monitoring the Windows registry for non-Sysinternals tools that attempt to set the "accepteula" registry key, which is typically only associated with legitimate usages of Sysinternals tools. The rule defines a selection criteria where the target object in the registry contains names of various Sysinternals tools and ends with "\EulaAccepted". Importantly, the detection filters for legitimate instances by ensuring that the image is not one of the known Sysinternals tools by checking the image name against a predefined list. It warrants a high alert level due to the potential for unauthorized tool use to evade detection and conduct malicious activities. The false positive rate is considered low, making this rule highly relevant for monitoring potentially malicious activities.
Categories
- Windows
- Endpoint
Data Sources
- Windows Registry
Created: 2022-08-24