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Mar 21, 2019 Microsoft Launches Windows Defender for Mac. This is the ATP business edition of Windows Defender and it's also been renamed Microsoft Defender ATP for obvious reasons. The Microsoft Defender ATP for Mac supports the three latest released versions of macOS: Mojave, High Sierra, and Sierra. Customers can use Microsoft Intune and Jamf to deploy and manage Microsoft Defender ATP for Mac. Mar 24, 2020 Microsoft regularly publishes software updates to improve performance, security, and to deliver new features. To update Microsoft Defender ATP for Mac, a program named Microsoft AutoUpdate (MAU) is used. By default, MAU automatically.
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Applies to:
This article provides information on how to define exclusions that apply to on-demand scans, and real-time protection and monitoring.
Important
The exclusions described in this article don't apply to other Microsoft Defender ATP for Mac capabilities, including endpoint detection and response (EDR). Files that you exclude using the methods described in this article can still trigger EDR alerts and other detections.
You can exclude certain files, folders, processes, and process-opened files from Microsoft Defender ATP for Mac scans.
Exclusions can be useful to avoid incorrect detections on files or software that are unique or customized to your organization. They can also be useful for mitigating performance issues caused by Microsoft Defender ATP for Mac.
Warning
Defining exclusions lowers the protection offered by Microsoft Defender ATP for Mac. You should always evaluate the risks that are associated with implementing exclusions, and you should only exclude files that you are confident are not malicious.
The follow table shows the exclusion types supported by Microsoft Defender ATP for Mac.
| Exclusion | Definition | Examples |
|---|---|---|
| File extension | All files with the extension, anywhere on the machine | .test |
| File | A specific file identified by the full path | /var/log/test.log |
| Folder | All files under the specified folder | /var/log/ |
| Process | A specific process (specified either by the full path or file name) and all files opened by it | /bin/catcat |
For more information on how to configure exclusions from JAMF, Intune, or another management console, see Set preferences for Microsoft Defender ATP for Mac.
Open the Microsoft Defender ATP application and navigate to Manage settings > Add or Remove Exclusion.., as shown in the following screenshot:
Select the type of exclusion that you wish to add and follow the prompts.
You can validate that your exclusion lists are working by using curl to download a test file.
In the following Bash snippet, replace test.txt with a file that conforms to your exclusion rules. For example, if you have excluded the .testing extension, replace test.txt with test.testing. If you are testing a path, ensure that you run the command within that path.
If Microsoft Defender ATP for Mac reports malware, then the rule is not working. If there is no report of malware, and the downloaded file exists, then the exclusion is working. You can open the file to confirm that the contents are the same as what is described on the EICAR test file website.
If you do not have Internet access, you can create your own EICAR test file. Write the EICAR string to a new text file with the following Bash command:
You can also copy the string into a blank text file and attempt to save it with the file name or in the folder you are attempting to exclude.
Back in March, Microsoft first announced that it will release Microsoft Defender ATP for Mac. Following internal testing and private preview, Microsoft yesterday announced the public preview of Microsoft Defender ATP for Mac. Based on the feedback from customers during the private preview period, Microsoft has made the following improvements to the product.
Microsoft Defender ATP on Mac can run on devices running macOS Mojave, macOS High Sierra, or macOS Sierra. During the preview period, Microsoft Defender ATP for Mac will allow end users to review and perform configuration of their protection, including:
You can learn more about Microsoft Defender ATP for Mac here.
Source: Microsoft