Possible Ways to Bypass Administrator Prompt when Invoking MRT Command Line for Automated Scans

Introduction

Microsoft Safety Scanner (MRT) is a standalone tool from Microsoft that can be used to scan a computer for malware and other security threats. It can be run in command-line mode, which is useful for automating scans in an administrative context. However, running MRT command-line scans with administrative privileges may prompt the user for confirmation, which can be a hindrance to fully automated workflows. In this article, we'll explore some possible ways to bypass the administrator prompt when invoking MRT command-line automated scans.

Method 1: Using a Scheduled Task

One way to run MRT command-line scans automatically and quietly is by using a scheduled task. This method doesn't involve bypassing the administrator prompt directly, but it does allow for automated execution of the MRT scan with administrative privileges. Here's how to create a scheduled task:

1. Open the Task Scheduler by typing "Task Scheduler" in the Start menu search bar.
2. Click on "Create Basic Task" in the right-hand Actions panel.
3. Name the task and set the trigger to run it at the desired time.
4. Under the "Action" tab, select "Start a program" and enter the path to the MRT executable, followed by the scan options. For example:

C:\Windows\System32\mrt.exe /c /q /f

5. Click "OK" to save the task.

Method 2: Using a Group Policy

Another way to run MRT command-line scans automatically and quietly is by using a Group Policy. This method involves configuring a Group Policy setting to allow the MRT scan to run without user interaction. Here's how to create a Group Policy:

1. Open the Group Policy Editor by typing "gpedit.msc" in the Start menu search bar.
2. Navigate to "Computer Configuration" > "Administrative Templates" > "Windows Components" > "Microsoft Security Client" > "Microsoft Baseline Security Analyzer" > "MRT Scan."
3. Double-click on "Allow MRT Scan to start automatically when the system starts up."
4. Set the policy to "Enabled" and click "OK."

Method 3: Using a Batch File

A third way to run MRT command-line scans automatically and quietly is by using a batch file. This method involves creating a batch file that runs the MRT scan command with administrative privileges using the "Run as administrator" option. Here's how to create a batch file:

1. Create a new text file and name it with a ".bat" extension, for example, "mrt_scan.bat."
2. Open the text file in a text editor and enter the following command:

start /wait mstscad.exe /admin /quiet "C:\Windows\System32\mrt.exe" /c /q /f

3. Save and close the file.
4. Right-click on the batch file and select "Run as administrator."

In this article, we explored three possible ways to bypass the administrator prompt when invoking MRT command-line automated scans: using a scheduled task, a Group Policy, or a batch file. While none of these methods involve directly bypassing the administrator prompt, they do allow for automated execution of the MRT scan with administrative privileges, reducing the need for user interaction.

References

• Microsoft Documentation: MRT
• How-To Geek: Scheduling a Task in Windows 10
• How-To Geek: Using Group Policy to Automate Admin Tasks