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Hey everybody! You may have noticed that with the continuous improvements, your antivirus exclusions also need to be kept up to date. This blog will provide a comprehensive list of support articles we have released along with other recommendations you could consider for your environment. Please reference the following support articles for further guidance. There was nothing new added to this blog from that update.

We strongly encourage you to evaluate the risks that are associated with implementing these changes. We recommend that you temporarily apply these procedures to evaluate a system. If you choose to implement these changes in your environment, ensure you take any additional precautions necessary. The recommendations for each section are separated between "Operational" and "Performance" levels.

Operational recommendations are highly encouraged to be added to your exclusions list. Performance recommendations should only be considered if you are experiencing such issues that may be a result of your antivirus product.

sccm antivirus exclusions

Details on the variables referenced:. Reference: ConfigMgr Imaging Exclusions. Method 1 has the least amount of risk. If this method does not work for you, we recommend you use Method 2.

Methods 3 and 4 may increase your security risk.

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We recommend that you use Methods 3 or 4 only if required and ensure you please take necessary precautions. Method 4: Exclude the folder where the Wsusscan. While MBSA version 2. MBSA 2. Thank you! Use of any included script samples are subject to the terms specified in the Terms of Use.

I made the correction. Thanks again! Thank you for your inquiry. As of today, I'm not aware of any authoritative sources for that recommendation. I suggest if your AV product may be causing issues with the content library to test out what may work best for your environment while keeping it operationally secure. You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.

Sign In. Azure Dynamics Microsoft Power Platform. Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Did you mean:. Brandon McMillan. Please be aware of what version you have installed.This article contains recommendations that may help an administrator determine the cause of potential instability on a computer that is running a supported version of Configuration Manager site servers, site systems, and clients when it is used together with antivirus software.

Note We recommend that you temporarily apply these procedures to evaluate a system. If your system performance or stability is improved by the recommendations that are made in this article, contact your antivirus software vendor for instructions or for an updated version of the antivirus software.

Important This article contains information that shows how to help lower security settings or how to temporarily turn off security features on a computer.

Configure Windows Defender Antivirus exclusions on Windows Server

You can make these changes to understand the nature of a specific problem. Before you make these changes, we recommend that you evaluate the risks that are associated with implementing this workaround in your particular environment. Antivirus real-time protection can cause many problems on Configuration Manager site servers, site systems, and clients.

sccm antivirus exclusions

Do not scan Outgoing files on MPs. Process Exclusions are necessary only if aggressive antivirus programs consider System Center Configuration Manager executables.

How to choose antivirus software to run on computers that are running SQL Server. Virus scanning recommendations for Enterprise computers that are running currently supported versions of Windows. Skip to main content. Select Product Version.

Configure and validate exclusions for Windows Defender Antivirus scans

All Products. The following is a non-comprehensive list of possible symptoms: Remote site system components are not installed. The Configuration Manager client cannot be installed through Client Push. Client inventory information is inaccurate, missing, or out-of-date.

Software Center is not populated by deployed software on client systems, or does not start. Also, the CCMRepair. ConfigMgr Installation Folder. Folder exclusions for site servers.You can exclude certain files, folders, processes, and process-opened files from Windows Defender Antivirus scans.

Such exclusions apply to scheduled scanson-demand scansand always-on real-time protection and monitoring. Exclusions for process-opened files only apply to real-time protection. Defining exclusions lowers the protection offered by Windows Defender Antivirus.

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. Configure and validate exclusions based on file name, extension, and folder location. This enables you to exclude files from Windows Defender Antivirus scans based on their file extension, file name, or location.

Configure and validate exclusions for files opened by processes. This enables you to exclude files from scans that have been opened by a specific process. Windows Defender Antivirus exclusions on Windows Server You may also leave feedback directly on GitHub. Skip to main content. Exit focus mode. Warning Defining exclusions lowers the protection offered by Windows Defender Antivirus. Is this page helpful? Yes No. Any additional feedback? Skip Submit. Send feedback about This product This page.

This page. Submit feedback. There are no open issues. View on GitHub.Windows Defender Antivirus on Windows Server and automatically enrolls you in certain exclusions, as defined by your specified server role. See the list of automatic exclusions in this article. These exclusions do not appear in the standard exclusion lists that are shown in the Windows Security app.

Automatic exclusions only apply to Real-time protection RTP scanning. In addition to server role-defined automatic exclusions, you can add or remove custom exclusions. To do that, refer to these articles:. In Windows Server andthe predefined exclusions delivered by Security intelligence updates only exclude the default paths for a role or feature. If you installed a role or feature in a custom path, or you want to manually control the set of exclusions, make sure to opt out of the automatic exclusions delivered in Security intelligence updates.

But keep in mind that the exclusions that are delivered automatically are optimized for Windows Server and roles. Opting out of automatic exclusions may adversely impact performance, or result in data corruption.

The exclusions that are delivered automatically are optimized for Windows Server and roles. Because predefined exclusions only exclude default pathsif you move NTDS and SYSVOL to another drive or path that is different from the original pathyou must add exclusions manually using the information here.

Right-click the Group Policy Object you want to configure, and then click Edit. Double-click Turn off Auto Exclusionsand set the option to Enabled.

Then click OK. The following sections contain the exclusions that are delivered with automatic exclusions file paths and file types.

FRS Database log files. The FRS staging folder. The FRS preinstall folder. For custom locations, see Opt out of automatic exclusions. This section lists the file type exclusions, folder exclusions, and process exclusions that are delivered automatically when you install the Hyper-V role. This section lists the exclusions that are delivered automatically when you install Active Directory Domain Services.

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This section lists the exclusions that are delivered automatically when you install the DHCP Server role. This section lists the file and folder exclusions and the process exclusions that are delivered automatically when you install the DNS Server role. This section lists the file and folder exclusions that are delivered automatically when you install the File and Storage Services role. The exclusions listed below do not include exclusions for the Clustering role. This section lists the file type exclusions, folder exclusions, and the process exclusions that are delivered automatically when you install the Print Server role.

This section lists the folder exclusions and the process exclusions that are delivered automatically when you install the Web Server role.

Configure and validate exclusions for Windows Defender Antivirus scans. Configure and validate exclusions based on file name, extension, and folder location. Configure and validate exclusions for files opened by processes. Customize, initiate, and review the results of Windows Defender Antivirus scans and remediation. Windows Defender Antivirus in Windows You may also leave feedback directly on GitHub.

sccm antivirus exclusions

Skip to main content. Exit focus mode. Warning Opting out of automatic exclusions may adversely impact performance, or result in data corruption.You can deploy antimalware policies to collections of Configuration Manager client computers to specify how Endpoint Protection protects them from malware and other threats.

These antimalware policies include information about the scan schedule, the types of files and folders to scan, and the actions to take when malware is detected. When you enable Endpoint Protection, a default antimalware policy is applied to client computers.

You can also use additional policy templates that are supplied or create your own custom antimalware policies to meet the specific needs of your environment. Configuration Manager supplies a selection of predefined templates that are optimized for various scenarios and can be imported into Configuration Manager. If you create a new antimalware policy and deploy it to a collection, this antimalware policy overrides the default antimalware policy.

Use the procedures in this topic to create or import antimalware policies and assign them to Configuration Manager client computers in your hierarchy. Before you perform these procedures, ensure that Configuration Manager is configured for Endpoint Protection as described in Configuring Endpoint Protection.

In the Default Antimalware Policy dialog box, configure the settings that you require for this antimalware policy, and then click OK. For a list of settings that you can configure, see List of Antimalware Policy Settings in this topic. In the General section of the Create Antimalware Policy dialog box, enter a name and a description for the policy.

Recommended antivirus exclusions for System Center Virtual Machine Manager and managed hosts

In the Create Antimalware Policy dialog box, configure the settings that you require for this antimalware policy, and then click OK. For a list of settings that you can configure, see List of Antimalware Policy Settings.

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Verify that the new antimalware policy is displayed in the Antimalware Policies list. In the Home tab, in the Create group, click Import. In the Open dialog box, browse to the policy file to import, and then click Open. In the Antimalware Policies list, select the antimalware policy to deploy.

Then, on the Home tab, in the Deployment group, click Deploy. In the Select Collection dialog box, select the device collection to which you want to deploy the antimalware policy, and then click OK.

Many of the antimalware settings are self-explanatory. Use the following sections for more information about the settings that might require more information before you configure them. Quick scan - This type of scan checks the in-memory processes and folders where malware is typically found. It requires fewer resources than a full scan. Full Scan - This type of scan adds a full check of all local files and folders to the items scanned in the quick scan.

This scan takes longer than a quick scan and uses more CPU processing and memory resources on client computers.

In most cases, use Quick scan to minimize the use of system resources on client computers.

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If malware removal requires a full scan, Endpoint Protection generates an alert that is displayed in the Configuration Manager console. The default value is Quick scan. Scan email and email attachments - Set to Yes to turn on e-mail scanning. Scan removable storage devices such as USB drives - Set to Yes to scan removable drives during full scans. Scan mapped network drives when running a full scan - Set to Yes to scan any mapped network drives on client computers.

Enabling this setting might significantly increase the scan time on client computers. The Scan network files setting must be set to Yes for this setting to be available to configure. By default, this setting is set to Nomeaning that a full scan will not access mapped network drives.This article outlines antivirus exclusions as they pertain to System Center - Operations Manager. For earlier versions of Operations Manager, see Recommendations for antivirus exclusions.

You must be careful when you add exclusions that are based on executables. Incorrectly configured exclusions may prevent some potentially dangerous programs from being detected.

Therefore, we do not recommend relying on exclusions that are based on any process executables for Operations Manager servers. The following directory-specific exclusions for Operations Manager includes real-time scans, scheduled scans, and local scans. The directories that are listed here are default application directories so you may have to modify these paths based on your specific environment.

Only the following Operations Manager related directories should be excluded. When a directory that is to be excluded has a directory name greater than 8 characters long, add both the short and long directory names of the directory to the exclusion list.

These names are required by some antivirus programs to traverse sub-directories. The following file name extension-specific exclusions for Operations Manager includes real-time scans, scheduled scans, and local scans. For a complete listing of ports used, the direction of the communication, and if the ports can be configured, see Configuring a Firewall for Operations Manager. Skip to main content. Exit focus mode. Exclusions by process executable If exclusions are configured based on process executable, exclude the following processes: Monitoringhost.

Note When a directory that is to be excluded has a directory name greater than 8 characters long, add both the short and long directory names of the directory to the exclusion list. Is this page helpful? Yes No. Any additional feedback? Skip Submit.Files that you exclude using the methods described in this article can still trigger EDR alerts and other detections.

You can exclude certain files from Windows Defender Antivirus scans by modifying exclusion lists.

08 - How to Deploy Software Updates Using Microsoft SCCM

Generally, you shouldn't need to apply exclusions. Windows Defender Antivirus includes a number of automatic exclusions based on known operating system behaviors and typical management files, such as those used in enterprise management, database management, and other enterprise scenarios and situations. Automatic exclusions apply only to Windows Server and above. The default antimalware policy we deploy at Microsoft doesn't set any exclusions by default.

See the Use wildcards in the file name and folder path or extension exclusion lists section for important information about how wildcards work. Folders that are reparse points that are created after the Windows Defender Antivirus service starts and that have been added to the exclusion list will not be included. You must restart the service by restarting Windows for new reparse points to be recognized as a valid exclusion target. To exclude files opened by a specific process, see Configure and validate exclusions for files opened by processes.

The exclusions apply to scheduled scanson-demand scansand real-time protection. Exclusion list changes made with Group Policy will show in the lists in the Windows Security app. Changes made in the Windows Security app will not show in the Group Policy lists. By default, local changes made to the lists by users with administrator privileges, including changes made with PowerShell and WMI will be merged with the lists as defined and deployed by Group Policy, Configuration Manager, or Intune.

The Group Policy lists will take precedence when there are conflicts. You can configure how locally and globally defined exclusions lists are merged to allow local changes to override managed deployment settings. See How to create and deploy antimalware policies: Exclusion settings for details on configuring Microsoft Endpoint Configuration Manager current branch.

If you specify a fully qualified path to a file, then only that file is excluded. If a folder is defined in the exclusion, then all files and subdirectories under that folder are excluded. Using PowerShell to add or remove exclusions for files based on the extension, location, or file name requires using a combination of three cmdlets and the appropriate exclusion list parameter.

The cmdlets are all in the Defender module. For example, the following code snippet would cause Windows Defender AV scans to exclude any file with the. See Add exclusions in the Windows Security app for instructions.

The way in which these wildcards are interpreted differs from their usual usage in other apps and languages. Make sure to read this section to understand their specific limitations. If you mix a file exclusion argument with a folder exclusion argument, the rules will stop at the file argument match in the matched folder, and will not look for file matches in any subfolders. To check exclusions with the dedicated command-line tool mpcmdrun.

In the following example, the items contained in the ExclusionExtension list are highlighted:. Use the following code snippet enter each line as a separate command ; replace WDAVprefs with whatever label you want to name the variable:. In the following example, the list is split into new lines for each use of the Add-MpPreference cmdlet:. You can validate that your exclusion lists are working by using PowerShell with either the Invoke-WebRequest cmdlet or the.

NET WebClient class to download a test file. In the following PowerShell snippet, replace test. For example, if you have excluded the.