Getting started with the Anti-Malware Scanner Build Task

The Anti-Malware Scanner build task is now included in the Microsoft Security Code Analysis Extension. This page has the steps needed to configure & run the build task as part of your build definition. Click here for information on the Windows Defender Anti-Malware scan.


1. You are using the Azure DevOps Build system.
2. The Microsoft Security Code Analysis Extension is installed in your account.
3. Windows Defender is installed and enabled on the build agent.
"Hosted" build agents (with VS2015) do not have Windows Defender installed, and cannot run this build task.
"Hosted VS2017" build agents do have Windows Defender installed, and can run this build task. Signatures cannot be updated on these agents, but the signature should be sufficiently current (less than 3 hours old).


1. Open your team project from your Azure DevOps Account.
2. Navigate to the Build tab under Build and Release
3. Select the Build Definition into which you wish to add the Anti-Malware Scanner build task.
  • New - Click New and follow the steps detailed to create a new Build Definition.
  • Edit - Select the Build Definition. On the subsequent page, click Edit to begin editing the Build Definition.
4. Click + to navigate to the Add Tasks pane.
5. Find the AntiMalware Scanner build task either from the list or using the search box and then click Add.

Customizing the Anti-Malware Scanner Build Task:

1. Click the newly added task to see the different options available.
2. Settings for Type = Basic:

3. With Type = Custom, command line arguments can be provided to customize the scan


Windows Defender uses the Windows Update client to download and install signatures. If signature update fails on your build agent, the HRESULT error code is likely coming from Windows Update.

  • The error code itself is cryptic, a 32-bit hexadecimal number.
  • There are many sites that document many Windows Update errors but, but no single site has a comprehensive list.
  • This page has the most comprehensive list of error codes and links to other pages with more codes

We're also putting together the following table as a good reference for more actionable information

80004004 Operation aborted. Some of possible factors that could cause it: 1) Incomplete program installation/un-installation; 2) Corrupt registry files; 3) Unreliable/Unsteady Internet connection
800106BA Windows Defender application failed to initialize
80070002 Some files in the Windows Update might be missing. Refer to this for a possible fix
80070070 Out of Disk Space
80070422 SelfUpdate check failed. Unable to startup the Windows Update service
80070490 A file (CBS Manifest) that's needed to install updates is corrupt. To correct this problem, you'll need to repair Windows
800704E8 The remote server is not reachable, or a manual Windows Defender update is being done at the same time when the automatic updating takes place
80070643 A generic error is encountered by Windows Installer
80070652 Another program installation is in progress, or a previous installation has not been completed successfully (in which case restarting computer generally fixes this issue)
80072EE2 Connection Timeout
80072F8F A general cause is the date and time settings being in error
8024001E Operation did not complete because the service or system was being shut down
80240022 Windows updates failed. Some of possible factors that could cause it: 1) Corrupted system files; 2) Out-of-date certificate of your computer
8024002E Access to an unmanaged server is not allowed
8024402F External cab file processing completed with some errors
80248014 This error probably occurred because of corrupted update files

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