runtimebroker.exe

RuntimeBroker.exe, a key Windows process, manages permissions for Universal Windows Platform (UWP) apps, ensuring they operate within their allocated privileges on Windows 10 and later versions.

Overview

Description: RuntimeBroker.exe acts as an intermediary between UWP apps and system resources. It enforces permissions set by the user, allowing or denying access to system functionalities like the microphone, camera, and file system based on these permissions. This process is crucial for maintaining the security and privacy of the user's data while facilitating the smooth operation of UWP apps.

• Image Path: %SystemRoot%\System32\RuntimeBroker.exe

• Expected Command Line: C:\Windows\System32\RuntimeBroker.exe -Embedding

  • This argument signifies that the process was started by the COM-based activation system, typically in response to the activation of a UWP app.

• Parent Process: svchost.exe

  • Description: RuntimeBroker.exe is typically launched by the Service Host (svchost.exe) as part of the system's management of background tasks and services.

  • Example Command Line: Not Applicable as svchost.exe's invocation of RuntimeBroker.exe does not usually come with a specific command line visible to users.

• Number of Instances: Varies based on the number of UWP apps in use. Each app may trigger its own instance of RuntimeBroker.exe to manage permissions and access to resources.

• User Account: Runs under the context of the currently logged-on user(s), ensuring that permissions and resource access are managed according to the active user's settings.

• Start Time: Instances of RuntimeBroker.exe start as needed when UWP apps are launched, without a fixed start time.

Functionality

• File Management: Facilitates controlled access to the file system for UWP apps, based on permissions granted by the user.

• User Interface: Not directly involved in user interface operations; its role is more about managing the background permissions and resources for UWP apps.

• Registry Configuration: Not typically involved in direct registry configuration or manipulation by end users.

• Multiple Instances: Designed to operate with multiple instances, each corresponding to separate UWP apps to ensure isolated and secure management of app permissions.

Security Considerations

RuntimeBroker.exe is essential for security, requiring regular monitoring for abnormal behaviors, such as excessive memory usage or unexpected instances which could indicate malware disguising itself as this legitimate process. Ensuring system security involves keeping an eye on RuntimeBroker's activities and performing regular system scans for potential threats.