MDE Tester

MDE Tester is designed to help testing various features in Microsoft Defender for Endpoint.

PS script	Testing features
MDEtesterTP.ps1	1. Microsoft Defender for Endpoint, Tamper Protection
MDEtesterWP.ps1	1. Microsoft Defender SmartScreen 2. Microsoft Defender Exploit Guard, Network Protection 3. Microsoft Defender for Endpoint, URL Indicators 4. Microsoft Defender for Endpoint, Web Content Filtering

MDEtesterTP.ps1

Prerequisites

• MDEtesterTP.ps1 helps confirm the status of Microsoft Defender for Endpoint, Tamper Protection. However, to test AV tampering in MDEtesterTP.ps1, enabling Tamper Protection is required.
• Run MDEtesterTP.ps1 script as Administrator.

Usage

PS C:\> .\MDEtesterTP.ps1 

How it looks like

MDEtesterWP.ps1

Prerequisites

MDEtesterWP.ps1 assumes that the following items are installed, enabled and onboared.

• Install Google Chrome & Microsoft Edge
• Enable Real-Time protection, Microsoft Defender Antivirus
• Enable Microsoft Defender SmartScreen
• Enable Microsoft Defender Exploit Guard, Network Protection
• Onboard Microsoft Defender for Endpoint

Usage

Test 1

PS C:\> .\MDEtesterWP.ps1 

Test 2

PS C:\> .\MDEtesterWP.ps1 -Path <CSV File path>

Test 3

PS C:\> .\MDEtesterWP.ps1 -Category <category>

Test 4

PS C:\> .\MDEtesterWP.ps1 -Path <CSV File path> -Category <category>

Features	Test 1	Test 2	Test 3	Test 4
Microsoft Defender SmartScreen	〇	〇	〇	〇
Network Protection	〇	〇	〇	〇
MDE URL Indicators	×	〇	×	〇
MDE Web Content Filtering	×	×	〇	〇

Important

Signing

If your PowerShell execution policy is set to RemoteSigned, PowerShell will not run unsigned scripts downloaded from the internet. Therefore, please unblock the script using the cmdlet or through Properties.

• Running unsigned scripts using the RemoteSigned execution policy

Parameter

-Path <String> : This is an optional parameter. Please specify a CSV file path and it is used for testing MDE URL indicators.

Note

The CSV file column header must be 'IndicatorValue'. Here is an example.

-Category <String> :  This is an optional parameter. Please select a category you want to test and it is used for testing MDE WCF.

Here are available categories :
PS C:\> .\MDEtesterWP.ps1 -Category AdultContent
PS C:\> .\MDEtesterWP.ps1 -Category HighBandwidth
PS C:\> .\MDEtesterWP.ps1 -Category LegalLiability
PS C:\> .\MDEtesterWP.ps1 -Category Leisure

Note

In this MDE Tester script, WEC will be tested against high-level categories such as 'AdultContent,' 'HighBandwidth,' 'LegalLiability,' and 'Leisure.' Please note that some specific categories might not be covered, and the 'Uncategorized' category is not included in this script.

LOG

After you run MDEtesterWP.ps1, all logs will be created by the script and available following the path - C:\MDE-tester.

How it looks like

Disclaimer

The views and opinions expressed herein are those of the author and do not necessarily reflect the views of company.