Would you like to learn how to configure attack surface reduction rules using Powershell? In this tutorial, we will show you how to use the command line to add an ASR rule to block process creations originating from PSExec and WMI commands.
• Windows 2012 R2
• Windows 2016
• Windows 2019
• Windows 2022
• Windows 10
• Windows 11
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Tutorial Powershell ASR – Block process creations originating from PSExec and WMI
Start an elevated Powershell command line.
Add an ASR rule using Powershell.
In our example, we add a rule to block process creations originating from PSExec and WMI commands.
There are multiple actions available.
The WARN mode blocks the execution and presents a warning window to the user.
List all configured ASR rules.
Here is the command output.
Restart the computer to enable the ASR rules.
Optionally, restart the Defender real-time protection to enable the ASR rules.
To test the ASR configuration, try to create a process using WMI.
List events related to ASR rules.
Here is the command output.
Disable the ASR rule using Powershell.
Remove the ASR rule using Powershell.
Congratulations! You are able to use Powershell to configure an ASR rule to block process creations originating from PSExec and WMI commands.
