Tool for testing Attack Surface Reduction (ASR) rules
Publisher’s description
What is Attack Surface Reduction Test Tool?
Attack Surface Reduction Test Tool by Microsoft Corporation is proprietary Windows software.
Installation and requirements
The publisher provides Portable installers for 64-bit Windows. The main installer is 1.8 MB. It runs without installation (portable).
Pros / Cons
Pros
- Portable: runs without installation
- Small download (1.8 MB)
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
- No update for more than a year
In short: Attack Surface Reduction Test Tool is a Windows tool for 64-bit PCs. Updates have slowed down.
Is Attack Surface Reduction Test Tool safe to download?
- The file is served by demo.wd.microsoft.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
F5D75E69A06D91D33B5FEECEEEEEB62EED100AA55E5BD1D6DDC90BEBFF539524· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 4.13.17600.1000Latest | October 1, 2022 | 1.8 MB | 64-bit Portable |
Install from the command line
Silent install ›winget install --id Microsoft.ASRTestTool -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- Microsoft Corporation
- Licence
- Proprietary
- Price
- See the publisher’s site
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 4.13.17600.1000
- Released
- October 1, 2022
- Added to the catalogue
- January 22, 2026
- Versions listed
- 1
- Website
- demo.wd.microsoft.com
- winget ID
- Microsoft.ASRTestTool
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is Attack Surface Reduction Test Tool free?
Attack Surface Reduction Test Tool is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is Attack Surface Reduction Test Tool safe to download?
The download comes from demo.wd.microsoft.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Attack Surface Reduction Test Tool with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does Attack Surface Reduction Test Tool run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use Attack Surface Reduction Test Tool without administrator rights?
Yes, it is portable: unpack and run it.
