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@ -50,15 +50,15 @@ For using WMI classes, see [Windows Defender WMIv2 APIs](https://msdn.microsoft.
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Description | Location and setting | Default setting (if not configured) | PowerShell `Set-MpPreference` parameter or WMI property for `MSFT_MpPreference` class
|
||||
---|---|---|---
|
||||
See [Email scanning limitations](#ref1)) below | Scan > Turn on e-mail scanning | Disabled | `-DisableEmailScanning`
|
||||
Scan [reparse points](https://msdn.microsoft.com/library/windows/desktop/aa365503.aspx) | Scan > Turn on reparse point scanning | Disabled | `-DisableRestorePoint`
|
||||
Scan [reparse points](https://msdn.microsoft.com/library/windows/desktop/aa365503.aspx) | Scan > Turn on reparse point scanning | Disabled | Not available
|
||||
Scan mapped network drives | Scan > Run full scan on mapped network drives | Disabled | `-DisableScanningMappedNetworkDrivesForFullScan`
|
||||
Scan archive files (such as .zip or .rar files). The [extensions exclusion list](configure-extension-file-exclusions-windows-defender-antivirus.md) will take precendence over this setting. | Scan > Scan archive files | Enabled | `-DisableArchiveScanning`
|
||||
Scan archive files (such as .zip or .rar files). The [extensions exclusion list](configure-extension-file-exclusions-windows-defender-antivirus.md) will take precedence over this setting. | Scan > Scan archive files | Enabled | `-DisableArchiveScanning`
|
||||
Scan files on the network | Scan > Scan network files | Disabled | `-DisableScanningNetworkFiles`
|
||||
Scan packed executables | Scan > Scan packed executables | Enabled | Not available
|
||||
Scan removable drives during full scans only | Scan > Scan removable drives | Disabled | `-DisableRemovableDriveScanning`
|
||||
Specify the level of subfolders within an archive folder to scan | Scan > Specify the maximum depth to scan archive files | 0 | Not available
|
||||
Specify the maximum CPU load (as a percentage) during a scan. This a theoretical maximum - scans will not always use the maximum load defined here, but they will never exceed it | Scan > Specify the maximum percentage of CPU utilization during a scan | 50 | `-ScanAvgCPULoadFactor`
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Specify the maximum size (in kilobytes) of archive files that should be scanned. The default, **0**, applies not limit | Scan > Specify the maximum size of archive files to be scanned | No limit | Not available
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Specify the maximum CPU load (as a percentage) during a scan. This is a maximum - scans will not always use the maximum load defined here, but they will never exceed it | Scan > Specify the maximum percentage of CPU utilization during a scan | 50 | `-ScanAvgCPULoadFactor`
|
||||
Specify the maximum size (in kilobytes) of archive files that should be scanned. The default, **0**, applies no limit | Scan > Specify the maximum size of archive files to be scanned | No limit | Not available
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**Use Configuration Manager to configure scanning options:**
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@ -77,16 +77,16 @@ See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune: Scan
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### Email scanning limitations
|
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We recommend using [always-on real-time protection](configure-real-time-protection-windows-defender-antivirus.md) to protect against email-based malware.
|
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|
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Always-on protection scans emails as they arrive and as they are manipulated, just like normal files in the operating system. This provides the strongest form of protection and is the recommended method for scanning emails.
|
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Always-on protection scans emails as they arrive and as they are manipulated, just like normal files in the operating system. This provides the strongest form of protection and is the recommended setting for scanning emails.
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|
||||
You can use this Group Policy to also enable scanning of older email files used by Outlook 2003 and older during on-demand and scheduled scans. Embedded objects within an email file (such as attachments and archived files) are also scanned. The following file format types can be scanned and remediated:
|
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- DBX
|
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- MBX
|
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- MIME
|
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|
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PST files used by Outlook 2003 or older (where the archive type is set to non-uni-code) can also be scanned, but Windows Defender cannot remediate threats detected inside PST files. This is another reason why we recommend using [always-on real-time protection](configure-real-time-protection-windows-defender-antivirus.md) to protect against email-based malware.
|
||||
PST files used by Outlook 2003 or older (where the archive type is set to non-unicode) can also be scanned, but Windows Defender cannot remediate threats detected inside PST files. This is another reason why we recommend using [always-on real-time protection](configure-real-time-protection-windows-defender-antivirus.md) to protect against email-based malware.
|
||||
|
||||
If Windows Defender detects a threat inside an email, it will show you the following information to assist you in identifying the compromised email, so you can remediate the threat:
|
||||
If Windows Defender Antivirus detects a threat inside an email, it will show you the following information to assist you in identifying the compromised email, so you can remediate the threat:
|
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- Email subject
|
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- Attachment name
|
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|
||||
|
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@ -41,7 +41,7 @@ The default period that the file will be [blocked](configure-block-at-first-sigh
|
||||
|
||||
## Prerequisites to use the extended cloud block timeout
|
||||
|
||||
The [Block at First Sight](configure-block-at-first-sight-windows-defender-antivirus.md) feature and its prerequisites must be enabled before you can specifiy an extended timeout period.
|
||||
The [Block at First Sight](configure-block-at-first-sight-windows-defender-antivirus.md) feature and its prerequisites must be enabled before you can specify an extended timeout period.
|
||||
|
||||
## Specify the extended timeout period
|
||||
|
||||
|
||||
@ -35,7 +35,7 @@ author: iaanw
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||||
|
||||
You can exclude certain files, folders, processes, and process-opened files from being scanned by Windows Defender Antivirus.
|
||||
|
||||
The exclusions apply to [scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md), [on-demand scans](run-scan-windows-defender-antivirus.md), and [always-on real-time protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md). Exclusions for process-opened files only aply to real-time protection.
|
||||
The exclusions apply to [scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md), [on-demand scans](run-scan-windows-defender-antivirus.md), and [always-on real-time protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md). Exclusions for process-opened files only apply to real-time protection.
|
||||
|
||||
Exclusions can be useful to avoid incorrect detections on files or software that are unique or customized to your organization.
|
||||
|
||||
|
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@ -78,7 +78,7 @@ Scan | Configure local setting override for the scan type to use for a scheduled
|
||||
|
||||
You can also configure how locally defined lists are combined or merged with globally defined lists. This setting applies to [exclusion lists](configure-exclusions-windows-defender-antivirus.md) and [specified remediation lists](configure-remediation-windows-defender-antivirus.md).
|
||||
|
||||
By default, lists that have been configured in local group policy and the Windows Defender Security Center app are merged with lists that are defined by the appropriate GPO that you have deployed on your network. Where there are conflicts, the globally defined list takes precendence.
|
||||
By default, lists that have been configured in local group policy and the Windows Defender Security Center app are merged with lists that are defined by the appropriate GPO that you have deployed on your network. Where there are conflicts, the globally defined list takes precedence.
|
||||
|
||||
You can disable this setting to ensure that only globally defined lists (such as those from any deployed GPOs) are used.
|
||||
|
||||
|
||||
@ -26,7 +26,7 @@ author: iaanw
|
||||
|
||||
To ensure Windows Defender Antivirus cloud-delivered protection works properly, you need to configure your network to allow connections between your endpoints and certain Microsoft servers.
|
||||
|
||||
This topic lists the connections that must be allowed, including firewall rules, and provides instructions for validating your connection. This will help ensure you receive the best protection from our cloud-delivered protection services.
|
||||
This topic lists the connections that must be allowed, such as by using firewall rules, and provides instructions for validating your connection. This will help ensure you receive the best protection from our cloud-delivered protection services.
|
||||
|
||||
See the Enterprise Mobility and Security blog post [Important changes to Microsoft Active Protection Services endpoint](https://blogs.technet.microsoft.com/enterprisemobility/2016/05/31/important-changes-to-microsoft-active-protection-service-maps-endpoint/) for some details about network connectivity.
|
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|
||||
@ -167,7 +167,7 @@ If you are using Microsoft Edge, you'll also see a notification message:
|
||||
|
||||
|
||||
|
||||
A similar message occurs if you are uding Internet Explorer:
|
||||
A similar message occurs if you are using Internet Explorer:
|
||||
|
||||
|
||||
|
||||
|
||||
@ -31,7 +31,7 @@ In Windows 10, application notifications about malware detection and remediation
|
||||
|
||||
Notifications will appear on endpoints when manually triggered and scheduled scans are completed and threats are detected. These notifications will also be seen in the **Notification Center**, and a summary of scans and threat detections will also appear at regular time intervals.
|
||||
|
||||
You can also configure how standard notifications appear on endpoints, such as notfications for reboot or when a threat has been detected and remediated.
|
||||
You can also configure how standard notifications appear on endpoints, such as notifications for reboot or when a threat has been detected and remediated.
|
||||
|
||||
## Configure the additional notifications that appear on endpoints
|
||||
|
||||
|
||||
@ -89,7 +89,7 @@ You can [configure how locally and globally defined exclusions lists are merged]
|
||||
<a id="ps"></a>
|
||||
**Use PowerShell cmdlets to exclude files that have been opened by specified processes from scans:**
|
||||
|
||||
Using PowerShell to add or remove exclusions for files that have been opened by processes requires using a combination of three cmdlets with the `-ExclusionProcess' parameter. The cmdlets are all in the [Defender module](https://technet.microsoft.com/en-us/itpro/powershell/windows/defender/defender).
|
||||
Using PowerShell to add or remove exclusions for files that have been opened by processes requires using a combination of three cmdlets with the `-ExclusionProcess` parameter. The cmdlets are all in the [Defender module](https://technet.microsoft.com/en-us/itpro/powershell/windows/defender/defender).
|
||||
|
||||
The format for the cmdlets is:
|
||||
|
||||
|
||||
@ -37,7 +37,7 @@ author: iaanw
|
||||
|
||||
Always-on protection consists of real-time protection, behavior monitoring, and heuristics to identify malware based on known suspicious and malicious activities.
|
||||
|
||||
These activities include events such as processes making unusual changes to existing files, modifiying or creating automatic startup registry keys and startup locations (also known as auto-start extensibilty points, or ASEPs), and other changes to the file system or file structure.
|
||||
These activities include events such as processes making unusual changes to existing files, modifying or creating automatic startup registry keys and startup locations (also known as auto-start extensibility points, or ASEPs), and other changes to the file system or file structure.
|
||||
|
||||
|
||||
## Configure and enable always-on protection
|
||||
@ -65,10 +65,10 @@ Real-time protection | Monitor file and program activity on your computer | The
|
||||
Real-time protection | Scan all downloaded files and attachments | Downloaded files and attachments are automatically scanned. This operates in addition to Windows Defender SmartScreen filter, which scans files before and during downloading | Enabled
|
||||
Real-time protection | Turn on process scanning whenever real-time protection is enabled | You can independently enable the AV engine to scan running processes for suspicious modifications or behaviors. This is useful if you have disabled real-time protection | Enabled
|
||||
Real-time protection | Turn on behavior monitoring | The AV engine will monitor file processes, file and registry changes, and other events on your endpoints for suspicious and known malicious activity | Enabled
|
||||
Real-time protection | Turn on raw volume write notifications | Information about raw volume writes will be analysed by behavior monitoring | Enabled
|
||||
Real-time protection | Turn on raw volume write notifications | Information about raw volume writes will be analyzed by behavior monitoring | Enabled
|
||||
Real-time protection | Define the maximum size of downloaded files and attachments to be scanned | You can define the size in kilobytes | Enabled
|
||||
Real-time protection | Configure monitoring for incoming and outgoing file and program activity | Specify whether monitoring should occur on incoming, outgoing, both, or neither direction. This is relevant for Windows Server installations where you have defined specific servers or Server Roles that see large amounts of file changes in only one direction and you want to improve network performance. Note that fully updated endpoints (and servers) on a network will see little performance impact irrespective of the number or direction of file changes.
|
||||
Scan | Turn on heuristics | Heuristic protection will disable or block suspicious activity immediately before the AV engine is asked to detect the activity | Enabled (both directions)
|
||||
Real-time protection | Configure monitoring for incoming and outgoing file and program activity | Specify whether monitoring should occur on incoming, outgoing, both, or neither direction. This is relevant for Windows Server installations where you have defined specific servers or Server Roles that see large amounts of file changes in only one direction and you want to improve network performance. Note that fully updated endpoints (and servers) on a network will see little performance impact irrespective of the number or direction of file changes. | Enabled (both directions)
|
||||
Scan | Turn on heuristics | Heuristic protection will disable or block suspicious activity immediately before the AV engine is asked to detect the activity | Enabled
|
||||
Root | Allow antimalware service to startup with normal priority | You can lower the priority of the AV engine, which may be useful in lightweight deployments where you want to have as lean a startup process as possible. This may impact protection on the endpoint. | Enabled
|
||||
Root | Allow antimalware service to remain running always | If protection updates have been disabled, you can set Windows Defender AV to still run. This lowers the protection on the endpoint. | Disabled
|
||||
|
||||
@ -81,7 +81,7 @@ Root | Allow antimalware service to remain running always | If protection update
|
||||
|
||||
The main real-time protection capability is enabled by default, but you can disable it with Group Policy:
|
||||
|
||||
**Use Group Policy to diasble real-time protection:**
|
||||
**Use Group Policy to disable real-time protection:**
|
||||
|
||||
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
|
||||
|
||||
|
||||
@ -39,7 +39,7 @@ You can also use the [`Set-MpPreference` PowerShell cmdlet](https://technet.micr
|
||||
|
||||
## Configure remediation options
|
||||
|
||||
You can configure how remediation with the Group Policy settings described in this section.
|
||||
You can configure how remediation works with the Group Policy settings described in this section.
|
||||
|
||||
To configure these settings:
|
||||
|
||||
|
||||
@ -31,9 +31,9 @@ You can use Group Policy, PowerShell, and Windows Management Instrumentation (WM
|
||||
|
||||
Topic | Description
|
||||
---|---
|
||||
[Exclude files and processes from scans](configure-exclusions-windows-defender-antivirus.md) | You can exclude files (including files modified by specified processes) and folders from on-demand scans, scheduled scans, and always-on real-time protection monitoring and scanning
|
||||
[Configure email, removable storage, network, reparse point, and archive scanning](configure-advanced-scan-types-windows-defender-antivirus.md) | You can configure Windows Defender AV to include certain types of email storage files, back-up or reparse points, and archived files (such as .zip files) in scans. You can also enable network file scanning
|
||||
[Configure remediation for scans](configure-remediation-windows-defender-antivirus.md) | Configure what Windows Defender AV should do when it detects a threat, and how long quarantined files should be retained in the quaratine folder
|
||||
[Configure and validate file, folder, and process-opened file exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md) | You can exclude files (including files modified by specified processes) and folders from on-demand scans, scheduled scans, and always-on real-time protection monitoring and scanning
|
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[Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md) | You can configure Windows Defender AV to include certain types of email storage files, back-up or reparse points, and archived files (such as .zip files) in scans. You can also enable network file scanning
|
||||
[Configure remediation for scans](configure-remediation-windows-defender-antivirus.md) | Configure what Windows Defender AV should do when it detects a threat, and how long quarantined files should be retained in the quarantine folder
|
||||
[Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md) | Set up recurring (scheduled) scans, including when they should run and whether they run as full or quick scans
|
||||
[Configure and run scans](run-scan-windows-defender-antivirus.md) | Run and configure on-demand scans using PowerShell, Windows Management Instrumentation, or individually on endpoints with the Windows Defender Security Center app
|
||||
[Review scan results](review-scan-results-windows-defender-antivirus.md) | Review the results of scans using System Center Configuration Manager, Microsoft Intune, or the Windows Defender Security Center app
|
||||
|
||||
@ -36,22 +36,20 @@ You'll also see additional links for:
|
||||
> In most cases, Windows 10 will disable Windows Defender Antivirus if it finds another antivirus product running and up-to-date. You must disable or uninstall third-party antivirus products before Windows Defender Antivirus will be functioning. If you re-enable or install third-part antivirus products, then Windows 10 will automatically disable Windows Defender Antivirus.
|
||||
|
||||
|
||||
Tool|Deployment options (<a href="#fn1" id="ref1">1</a>)|Management options (network-wide configuration and policy or baseline deployment) ([2](#fn2))|Reporting options
|
||||
Tool|Deployment options (<a href="#fn2" id="ref2">2</a>)|Management options (network-wide configuration and policy or baseline deployment) ([3](#fn3))|Reporting options
|
||||
---|---|---|---
|
||||
System Center Configuration Manager ([3](#fn3))|Use the [Endpoint Protection point site system role][] and [enable Endpoint Protection with custom client settings][]|With [default and customized antimalware policies][] and [client management][]|With the default [Configuration Manager Monitoring workspace][] and [email alerts][]
|
||||
System Center Configuration Manager ([1](#fn1))|Use the [Endpoint Protection point site system role][] and [enable Endpoint Protection with custom client settings][]|With [default and customized antimalware policies][] and [client management][]|With the default [Configuration Manager Monitoring workspace][] and [email alerts][]
|
||||
Microsoft Intune|[Deploy the Microsoft Intune client to endpoints][]|Use and deploy a [custom Intune policy][] and use the Intune console to [manage tasks][]|[Monitor endpoint protection in the Microsoft Intune administration console][]
|
||||
Windows Management Instrumentation|Deploy with Group Policy, System Center Configuration Manager, or manually on individual endpoints.|Use the [Set method of the MSFT_MpPreference class][] and the [Update method of the MSFT_MpSignature class][]|Use the [MSFT_MpComputerStatus][] class and the get method of associated classes in the [Windows Defender WMIv2 Provider][]
|
||||
PowerShell|Deploy with Group Policy, System Center Configuration Manager, or manually on individual endpoints.|Use the [Set-MpPreference][] and [Update-MpSignature] [] cmdlets available in the Defender module|Use the appropriate [Get- cmdlets available in the Defender module][]
|
||||
Group Policy and Active Directory (domain-joined)|Use a Group Policy Object to deploy configuration changes and ensure Windows Defender Antivirus is enabled.|Use Group Policy Objects (GPOs) to [Configure update options for Windows Defender Antivirus][] and [Configure Windows Defender features][]|Endpoint reporting is not available with Group Policy. You can generate a list of [Group Policies to determine if any settings or policies are not applied][]
|
||||
Microsoft Azure|Deploy Microsoft Antimalware for Azure in the [Azure portal, by using Visual Studio virtual machine configuration, or using Azure PowerShell cmdlets](https://docs.microsoft.com/en-us/azure/security/azure-security-antimalware#antimalware-deployment-scenarios). You can also [Install Endpoint protection in Azure Security Center](https://docs.microsoft.com/en-us/azure/security-center/security-center-install-endpoint-protection)|Configure [Microsoft Antimalware for Virtual Machines and Cloud Services with Azure PowerShell cmdlets](https://docs.microsoft.com/en-us/powershell/servicemanagement/azure.antimalware/v3.4.0/azure.antimalware) or [use code samples](https://gallery.technet.microsoft.com/Antimalware-For-Azure-5ce70efe)|Use [Microsoft Antimalware for Virtual Machines and Cloud Services with Azure PowerShell cmdlets](https://docs.microsoft.com/en-us/powershell/servicemanagement/azure.antimalware/v3.4.0/azure.antimalware) to enable monitoring. You can also review usage reports in Azure Active Directory to determine suspicious activity, including the [Possibly infected devices][] report and configure an SIEM tool to report on [Windows Defender Antivirus events][] and add that tool as an app in AAD.
|
||||
|
||||
1. <span id="fn1" />The availability of some functions and features, especially related to cloud-delivered protection, differ between System Center Configuration Manager, current branch (for example, System Center Configuration Manager 2016) and System Center Configuration Manager 2012. In this library, we've focused on Windows 10, Windows Server 2016, and System Center Configuration Manager, current branch (2016). See the [Utilize Microsoft cloud-provided protection in Windows Defender Antivirus](utilize-microsoft-cloud-protection-windows-defender-antivirus.md) topic for a table that describes the major differences. [(Return to table)](#ref1)
|
||||
|
||||
1. <span id="fn2" />Configuration of features and protection, including configuring product and protection updates, are further described in the [Configure Windows Defender Antivirus features](configure-notifications-windows-defender-antivirus.md) section in this library. [(Return to table)](#ref2)
|
||||
|
||||
1. <span id="fn3" />In Windows 10, Windows Defender Antivirus is a component available without installation or deployment of an additional client or service. It will automatically be enabled when third-party antivirus products are either uninstalled or out of date ([except on Windows Server 2016](windows-defender-antivirus-on-windows-server-2016.md). Traditional deployment therefore is not required. Deployment here refers to ensuring the Windows Defender Antivirus component is available and enabled on endpoints or servers. [(Return to table)](#ref3)
|
||||
1. <span id="fn1" />The availability of some functions and features, especially related to cloud-delivered protection, differ between System Center Configuration Manager, current branch (for example, System Center Configuration Manager 2016) and System Center Configuration Manager 2012. In this library, we've focused on Windows 10, Windows Server 2016, and System Center Configuration Manager, current branch (2016). See the [Utilize Microsoft cloud-provided protection in Windows Defender Antivirus](utilize-microsoft-cloud-protection-windows-defender-antivirus.md) topic for a table that describes the major differences. [(Return to table)](#ref2)
|
||||
|
||||
2. <span id="fn2" />In Windows 10, Windows Defender Antivirus is a component available without installation or deployment of an additional client or service. It will automatically be enabled when third-party antivirus products are either uninstalled or out of date ([except on Windows Server 2016](windows-defender-antivirus-on-windows-server-2016.md)). Traditional deployment therefore is not required. Deployment here refers to ensuring the Windows Defender Antivirus component is available and enabled on endpoints or servers. [(Return to table)](#ref2)
|
||||
|
||||
3. <span id="fn3" />Configuration of features and protection, including configuring product and protection updates, are further described in the [Configure Windows Defender Antivirus features](configure-notifications-windows-defender-antivirus.md) section in this library. [(Return to table)](#ref2)
|
||||
|
||||
|
||||
|
||||
|
||||
@ -27,7 +27,7 @@ author: iaanw
|
||||
|
||||
Depending on the management tool you are using, you may need to specifically enable or configure Windows Defender AV protection.
|
||||
|
||||
See the [(Deployment, managament, and reporting options table)](deploy-manage-report-windows-defender-antivirus.md#ref1) for instructions on how to enable protection with System Center Configuration Manager, Group Policy, Active Directory, Microsoft Azure, Microsoft Intune, PowerShell cmdlets, and Windows Management Instruction (WMI).
|
||||
See the table in the [Deploy, manage, and report on Windows Defender AV](deploy-manage-report-windows-defender-antivirus.md#ref2) topic for instructions on how to enable protection with System Center Configuration Manager, Group Policy, Active Directory, Microsoft Azure, Microsoft Intune, PowerShell cmdlets, and Windows Management Instruction (WMI).
|
||||
|
||||
Some scenarios require additional guidance on how to successfully deploy or configure Windows Defender AV protection, such as Virtual Desktop Infrastructure (VDI) environments.
|
||||
|
||||
@ -37,4 +37,4 @@ The remaining topic in this section provides end-to-end advice and best practice
|
||||
|
||||
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
|
||||
- [Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md)
|
||||
- [Deployment guide for Windows Defender Antivirus in a virtual desktop infrasructure (VDI) environment](deployment-vdi-windows-defender-antivirus.md)
|
||||
- [Deployment guide for Windows Defender Antivirus in a virtual desktop infrastructure (VDI) environment](deployment-vdi-windows-defender-antivirus.md)
|
||||
@ -58,7 +58,7 @@ There are three main steps in this guide to help roll out Windows Defender AV pr
|
||||
- [Randomize scheduled scans](#randomize-scheduled-scans)
|
||||
- [Use quick scans](#use-quick-scans)
|
||||
- [Prevent notifications](#prevent-notifications)
|
||||
- [Disable scans from occuring after every update](#disable-scans-after-an-update)
|
||||
- [Disable scans from occurring after every update](#disable-scans-after-an-update)
|
||||
- [Scan out-of-date machines or machines that have been offline for a while](#scan-vms-that-have-been-offline)
|
||||
|
||||
>[!IMPORTANT]
|
||||
@ -147,7 +147,7 @@ There are a number of settings that can help ensure optimal performance on your
|
||||
- [Randomize scheduled scans](#randomize-scheduled-scans)
|
||||
- [Use quick scans](#use-quick-scans)
|
||||
- [Prevent notifications](#prevent-notifications)
|
||||
- [Disable scans from occuring after every update](#disable-scans-after-an-update)
|
||||
- [Disable scans from occurring after every update](#disable-scans-after-an-update)
|
||||
- [Scan out-of-date machines or machines that have been offline for a while](#scan-vms-that-have-been-offline)
|
||||
|
||||
These settings can be configured as part of creating your base image, or as a day-to-day management function of your VDI infrastructure or network.
|
||||
@ -157,7 +157,7 @@ These settings can be configured as part of creating your base image, or as a da
|
||||
|
||||
### Randomize scheduled scans
|
||||
|
||||
Windows Defender AV supports the randomization of scheduled scans and signature updates. This can be extremely helpful in reducing boot storms (especially when used in conjuction with [Disable scans from occuring after every update](#disable-scans-after-an-update) and [Scan out-of-date machines or machines that have been offline for a while](#scan-vms-that-have-been-offline).
|
||||
Windows Defender AV supports the randomization of scheduled scans and signature updates. This can be extremely helpful in reducing boot storms (especially when used in conjunction with [Disable scans from occurring after every update](#disable-scans-after-an-update) and [Scan out-of-date machines or machines that have been offline for a while](#scan-vms-that-have-been-offline).
|
||||
|
||||
Scheduled scans run in addition to [real-time protection and scanning](configure-real-time-protection-windows-defender-antivirus.md).
|
||||
|
||||
@ -175,7 +175,7 @@ The start time of the scan itself is still based on the scheduled scan policy
|
||||
|
||||
5. Expand the tree to **Windows components > Windows Defender** and configure the following setting:
|
||||
|
||||
1. Double-click the **Randomize scheduled task times** setting and set the option to **Enabled**. Click **OK**. This adds a true randomization (it is still random if the disk image is replicated) of plus or minus 30 minutes (using all of the intervals) to the start of the scheduled scan and the signature update. For example, if the sechedule start time was set at 2.30pm, then enabling this setting could cause one machine to scan and update at 2.33pm and another machine to scan and update at 2.14pm.
|
||||
1. Double-click the **Randomize scheduled task times** setting and set the option to **Enabled**. Click **OK**. This adds a true randomization (it is still random if the disk image is replicated) of plus or minus 30 minutes (using all of the intervals) to the start of the scheduled scan and the signature update. For example, if the schedule start time was set at 2.30pm, then enabling this setting could cause one machine to scan and update at 2.33pm and another machine to scan and update at 2.14pm.
|
||||
|
||||
**Use Configuration Manager to randomize schedule scans:**
|
||||
|
||||
|
||||
@ -113,7 +113,7 @@ See the following for more information and allowed parameters:
|
||||
|
||||
> [!WARNING]
|
||||
> Setting to **Always Prompt** will lower the protection state of the device. Setting to **Never send** means the [Block at First Sight](configure-block-at-first-sight-windows-defender-antivirus.md) feature will not function.
|
||||
5. Scoll down to the **Microsoft Active Protection Service** section and set the following settings:
|
||||
5. Scroll down to the **Microsoft Active Protection Service** section and set the following settings:
|
||||
|
||||
Setting | Set to
|
||||
--|--
|
||||
@ -139,7 +139,7 @@ See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune](http
|
||||
3. Confirm that **Cloud-based Protection** and **Automatic sample submission** are switched to **On**.
|
||||
|
||||
>[!NOTE]
|
||||
>If automatic sample submission has been configured with Group Policy then the setting will be greyed-out and unavailble.
|
||||
>If automatic sample submission has been configured with Group Policy then the setting will be greyed-out and unavailable.
|
||||
|
||||
## Related topics
|
||||
|
||||
@ -150,4 +150,4 @@ See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune](http
|
||||
- [Defender cmdlets](https://technet.microsoft.com/en-us/library/dn433280.aspx)
|
||||
- [Utilize Microsoft cloud-delivered protection in Windows Defender Antivirus](utilize-microsoft-cloud-protection-windows-defender-antivirus.md)
|
||||
- [How to create and deploy antimalware policies: Cloud-protection service](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#cloud-protection-service)
|
||||
- - [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
|
||||
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
|
||||
@ -61,7 +61,7 @@ You can use Group Policy, Configuration Manager, PowerShell cmdlets, and WMI to
|
||||
|
||||
4. [Deploy the updated policy as usual](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#deploy-an-antimalware-policy-to-client-computers).
|
||||
|
||||
**Use PowerShell cmdlets to to check for protection updates before running a scan:**
|
||||
**Use PowerShell cmdlets to check for protection updates before running a scan:**
|
||||
|
||||
Use the following cmdlets:
|
||||
|
||||
@ -72,7 +72,7 @@ Set-MpPreference -CheckForSignaturesBeforeRunningScan
|
||||
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/en-us/library/dn433280.aspx) for more information on how to use PowerShell with Windows Defender Antivirus.
|
||||
|
||||
|
||||
**Use Windows Management Instruction (WMI) to to check for protection updates before running a scan**
|
||||
**Use Windows Management Instruction (WMI) to check for protection updates before running a scan**
|
||||
|
||||
Use the [**Set** method of the **MSFT_MpPreference**](https://msdn.microsoft.com/en-us/library/dn455323(v=vs.85).aspx) class for the following properties:
|
||||
|
||||
|
||||
@ -92,7 +92,7 @@ See the following for more information and allowed parameters:
|
||||
|
||||
## Set the number of days before protection is reported as out-of-date
|
||||
|
||||
You can also specify the number of days after which Windows Defender AV protection is considered old or out-of-date. After the specified number of days, the client will report itself as out-of-date, and show an error to the user of the PC. It may also cause Windows Defender AV to attempt to download an update from other sources (based on the defined [fallback source order](manage-protection-updates-windows-defender-antivirus.md#fallback-order).
|
||||
You can also specify the number of days after which Windows Defender AV protection is considered old or out-of-date. After the specified number of days, the client will report itself as out-of-date, and show an error to the user of the PC. It may also cause Windows Defender AV to attempt to download an update from other sources (based on the defined [fallback source order](manage-protection-updates-windows-defender-antivirus.md#fallback-order)).
|
||||
|
||||
**Use Group Policy to specify the number of days before protection is considered out-of-date:**
|
||||
|
||||
|
||||
@ -52,7 +52,7 @@ You can also randomize the times when each endpoint checks and downloads protect
|
||||
|
||||
5. Expand the tree to **Windows components > Windows Defender Antivirus > Signature Updates** and configure the following settings:
|
||||
|
||||
1. Double-click the **Specify the interval to check for definition updates** setting and set the option to **Enabled**. Enter the nuber of hours between updates. Click **OK**.
|
||||
1. Double-click the **Specify the interval to check for definition updates** setting and set the option to **Enabled**. Enter the number of hours between updates. Click **OK**.
|
||||
2. Double-click the **Specify the day of the week to check for definition updates** setting and set the option to **Enabled**. Enter the day of the week to check for updates. Click **OK**.
|
||||
3. Double-click the **Specify the time to check for definition updates** setting and set the option to **Enabled**. Enter the time when updates should be checked. The time is based on the local time of the endpoint. Click **OK**.
|
||||
|
||||
|
||||
@ -35,7 +35,7 @@ There are two settings that are particularly useful for these devices:
|
||||
- Opt-in to Microsoft Update on mobile computers without a WSUS connection
|
||||
- Prevent definition updates when running on battery power
|
||||
|
||||
The following topics may also be useful in this situations:
|
||||
The following topics may also be useful in these situations:
|
||||
- [Configuring scheduled and catch-up scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
|
||||
- [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
|
||||
- [Deployment guide for Windows Defender Antivirus in a virtual desktop infrastructure (VDI) environment](deployment-vdi-windows-defender-antivirus.md)
|
||||
|
||||
@ -26,11 +26,17 @@ There are a number of ways you can review protection status and alerts, dependin
|
||||
|
||||
|
||||
|
||||
You can use System Center Configuration Manager to [monitor Windows Defender AV protection](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/monitor-endpoint-protection) or [create email alerts](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-configure-alerts), or you can also monitor protection using the [Microsoft Intune console](ttps://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune#monitor-endpoint-protection).
|
||||
You can use System Center Configuration Manager to [monitor Windows Defender AV protection](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/monitor-endpoint-protection) or [create email alerts](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-configure-alerts), or you can also monitor protection using the [Microsoft Intune console](https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune#monitor-endpoint-protection).
|
||||
|
||||
If you have a third-party security information and event management (SIEM) tool, you can also consume [Windows Defender client event IDs](troubleshoot-windows-defender-antivirus.md#windows-defender-av-ids) to review specific events and errors from your endpoints.
|
||||
If you have a third-party security information and event management (SIEM) tool, you can also consume [Windows Defender client events](https://msdn.microsoft.com/en-us/library/windows/desktop/aa964766(v=vs.85).aspx).
|
||||
|
||||
For monitoring or determining status with PowerShell, WMI, or Microsoft Azure, see the [(Deployment, managament, and reporting options table)](deploy-manage-report-windows-defender-antivirus.md#ref1).
|
||||
Windows events comprise several security event sources, including Security Account Manager (SAM) events ([enhanced for Windows 10](https://technet.microsoft.com/library/mt431757.aspx), also see the [Security audting](security-auditing-overview.md) topic) and [Windows Defender events](troubleshoot-windows-defender-antivirus.md).
|
||||
|
||||
These events can be centrally aggregated using the [Windows event collector](https://msdn.microsoft.com/en-us/library/windows/desktop/bb427443(v=vs.85).aspx). It is common practice for SIEMs to have connectors for Windows events. This technique allows for correlation of all security events from the machine in the SIEM.
|
||||
|
||||
You can also [monitor malware events using the Malware Assessment solution in Log Analytics](https://docs.microsoft.com/en-us/azure/log-analytics/log-analytics-malware).
|
||||
|
||||
For monitoring or determining status with PowerShell, WMI, or Microsoft Azure, see the [(Deployment, management, and reporting options table)](deploy-manage-report-windows-defender-antivirus.md#ref2).
|
||||
|
||||
## Related topics
|
||||
|
||||
|
||||
@ -32,7 +32,7 @@ author: iaanw
|
||||
- Windows Defender Security Center app
|
||||
|
||||
|
||||
After Windows Defender Antivirus has completed a scan, whether it is an [on-demand](run-scan-windows-defender-antivirus.md) or [scheduled scan](scheduled-catch-up-scans-windows-defender-antivirus.md), the results are recorded and you can view the results. You can also define
|
||||
After Windows Defender Antivirus has completed a scan, whether it is an [on-demand](run-scan-windows-defender-antivirus.md) or [scheduled scan](scheduled-catch-up-scans-windows-defender-antivirus.md), the results are recorded and you can view the results.
|
||||
|
||||
|
||||
**Use Configuration Manager to review Windows Defender AV scan results:**
|
||||
@ -54,7 +54,7 @@ See [How to monitor Endpoint Protection status](https://docs.microsoft.com/en-us
|
||||
|
||||
**Use PowerShell cmdlets to review Windows Defender AV scan results:**
|
||||
|
||||
The following cmdlet will return each detection on the endpoint. If there are multiple detection of the same threat, each detection will be listed separately, based on the time of each detection:
|
||||
The following cmdlet will return each detection on the endpoint. If there are multiple detections of the same threat, each detection will be listed separately, based on the time of each detection:
|
||||
|
||||
```PowerShell
|
||||
Get-MpThreatDetection
|
||||
|
||||
@ -65,7 +65,7 @@ See [Use the mpcmdrun.exe commandline tool to configure and manage Windows Defen
|
||||
|
||||
**Use Configuration Manager to run a scan:**
|
||||
|
||||
See [Antimalware and firewall tasks: How to perform an on-demance scan](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-firewall#how-to-perform-an-on-demand-scan-of-computers) for details on using System Center Configuration Manager (current branch) to run a scan.
|
||||
See [Antimalware and firewall tasks: How to perform an on-demand scan](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-firewall#how-to-perform-an-on-demand-scan-of-computers) for details on using System Center Configuration Manager (current branch) to run a scan.
|
||||
|
||||
|
||||
|
||||
|
||||
@ -33,7 +33,7 @@ author: iaanw
|
||||
|
||||
|
||||
|
||||
> [!IMPORTANT]
|
||||
> [!NOTE]
|
||||
> By default, Windows Defender AV will check for an update 15 minutes before the time of any scheduled scans. You can [Manage the schedule for when protection updates should be downloaded and applied](manage-protection-update-schedule-windows-defender-antivirus.md) to override this default.
|
||||
|
||||
|
||||
@ -201,7 +201,7 @@ Scan | Specify the time for a daily quick scan | Specify the number of minutes a
|
||||
Use the following cmdlets:
|
||||
|
||||
```PowerShell
|
||||
Set-MpPreference Set-MpPreference -ScanScheduleQuickTime
|
||||
Set-MpPreference -ScanScheduleQuickTime
|
||||
```
|
||||
|
||||
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
|
||||
|
||||
@ -91,7 +91,7 @@ The table in this section lists the main Windows Defender Antivirus client event
|
||||
</ul>
|
||||
</dt>
|
||||
<dt>Scan Resources: <Resources (such as files/directories/BHO) that were scanned.></dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
</dl>
|
||||
</p>
|
||||
</td>
|
||||
@ -133,7 +133,7 @@ The table in this section lists the main Windows Defender Antivirus client event
|
||||
<li>Customer scan</li>
|
||||
</ul>
|
||||
</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Scan Time: <The duration of a scan.></dt>
|
||||
</dl>
|
||||
</p>
|
||||
@ -223,7 +223,7 @@ The table in this section lists the main Windows Defender Antivirus client event
|
||||
<li>Customer scan</li>
|
||||
</ul>
|
||||
</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
</dl>
|
||||
</p>
|
||||
</td>
|
||||
@ -267,7 +267,7 @@ The table in this section lists the main Windows Defender Antivirus client event
|
||||
<li>Customer scan</li>
|
||||
</ul>
|
||||
</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
</dl>
|
||||
</p>
|
||||
</td>
|
||||
@ -311,7 +311,7 @@ The table in this section lists the main Windows Defender Antivirus client event
|
||||
<li>Customer scan</li>
|
||||
</ul>
|
||||
</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Error Code: <Error code>
|
||||
Result code associated with threat status. Standard HRESULT values.</dt>
|
||||
<dt>Error Description: <Error description>
|
||||
@ -403,7 +403,7 @@ Description of the error. </dt>
|
||||
</ul>Antimalware Scan Interface (AMSI). Primarily used to protect scripts (PS, VBS), though it can be invoked by third parties as well.
|
||||
UAC</dt>
|
||||
<dt>Status: <Status></dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Process Name: <Process in the PID></dt>
|
||||
<dt>Signature Version: <Definition version></dt>
|
||||
<dt>Engine Version: <Antimalware Engine version></dt>
|
||||
@ -438,7 +438,7 @@ UAC</dt>
|
||||
<p>
|
||||
<p>Windows Defender has taken action to protect this machine from malware or other potentially unwanted software. For more information please see the following:</p>
|
||||
<dl>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Name: <Threat name></dt>
|
||||
<dt>ID: <Threat ID></dt>
|
||||
<dt>Severity: <Severity>, for example:<ul>
|
||||
@ -491,7 +491,7 @@ UAC</dt>
|
||||
<p>
|
||||
<p>Windows Defender has encountered an error when taking action on malware or other potentially unwanted software. For more information please see the following:</p>
|
||||
<dl>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Name: <Threat name></dt>
|
||||
<dt>ID: <Threat ID></dt>
|
||||
<dt>Severity: <Severity>, for example:<ul>
|
||||
@ -562,7 +562,7 @@ Description of the error. </dt>
|
||||
</dt>
|
||||
<dt>Category: <Category description>, for example, any threat or malware type.</dt>
|
||||
<dt>Path: <File path></dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Signature Version: <Definition version></dt>
|
||||
<dt>Engine Version: <Antimalware Engine version></dt>
|
||||
</dl>
|
||||
@ -607,7 +607,7 @@ Description of the error. </dt>
|
||||
</dt>
|
||||
<dt>Category: <Category description>, for example, any threat or malware type.</dt>
|
||||
<dt>Path: <File path></dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Error Code: <Error code>
|
||||
Result code associated with threat status. Standard HRESULT values. </dt>
|
||||
<dt>Error Description: <Error description>
|
||||
@ -656,7 +656,7 @@ For more information please see the following:</p>
|
||||
</dt>
|
||||
<dt>Category: <Category description>, for example, any threat or malware type.</dt>
|
||||
<dt>Path: <File path></dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Signature Version: <Definition version></dt>
|
||||
<dt>Engine Version: <Antimalware Engine version></dt>
|
||||
</dl>
|
||||
@ -701,7 +701,7 @@ For more information please see the following:</p>
|
||||
</dt>
|
||||
<dt>Category: <Category description>, for example, any threat or malware type.</dt>
|
||||
<dt>Path: <File path></dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Error Code: <Error code>
|
||||
Result code associated with threat status. Standard HRESULT values. </dt>
|
||||
<dt>Error Description: <Error description>
|
||||
@ -739,7 +739,7 @@ Description of the error. </dt>
|
||||
<p>Windows Defender has removed history of malware and other potentially unwanted software.</p>
|
||||
<dl>
|
||||
<dt>Time: The time when the event occurred, for example when the history is purged. Note that this parameter is not used in threat events so that there is no confusion regarding whether it is remediation time or infection time. For those, we specifically call them as Action Time or Detection Time.</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
</dl>
|
||||
</p>
|
||||
</td>
|
||||
@ -771,7 +771,7 @@ Description of the error. </dt>
|
||||
<p>Windows Defender has encountered an error trying to remove history of malware and other potentially unwanted software.</p>
|
||||
<dl>
|
||||
<dt>Time: The time when the event occurred, for example when the history is purged. Note that this parameter is not used in threat events so that there is no confusion regarding whether it is remediation time or infection time. For those, we specifically call them as Action Time or Detection Time.</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Error Code: <Error code>
|
||||
Result code associated with threat status. Standard HRESULT values. </dt>
|
||||
<dt>Error Description: <Error description>
|
||||
@ -847,7 +847,7 @@ For more information please see the following:</p>
|
||||
</ul>Antimalware Scan Interface (AMSI). Primarily used to protect scripts (PS, VBS), though it can be invoked by third parties as well.
|
||||
UAC</dt>
|
||||
<dt>Status: <Status></dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Process Name: <Process in the PID></dt>
|
||||
<dt>Signature ID: Enumeration matching severity.</dt>
|
||||
<dt>Signature Version: <Definition version></dt>
|
||||
@ -925,7 +925,7 @@ For more information please see the following:</p>
|
||||
<li>Remote attestation</li>
|
||||
</ul>Antimalware Scan Interface (AMSI). Primarily used to protect scripts (PS, VBS), though it can be invoked by third parties as well.
|
||||
UAC</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Process Name: <Process in the PID></dt>
|
||||
<dt>Signature Version: <Definition version></dt>
|
||||
<dt>Engine Version: <Antimalware Engine version></dt>
|
||||
@ -1008,7 +1008,7 @@ For more information please see the following:</p>
|
||||
<li>Remote attestation</li>
|
||||
</ul>Antimalware Scan Interface (AMSI). Primarily used to protect scripts (PS, VBS), though it can be invoked by third parties as well.
|
||||
UAC</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Process Name: <Process in the PID></dt>
|
||||
<dt>Action: <Action>, for example:<ul>
|
||||
<li>Clean: The resource was cleaned</li>
|
||||
@ -1137,7 +1137,7 @@ For more information please see the following:</p>
|
||||
<li>Remote attestation</li>
|
||||
</ul>Antimalware Scan Interface (AMSI). Primarily used to protect scripts (PS, VBS), though it can be invoked by third parties as well.
|
||||
UAC</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Process Name: <Process in the PID></dt>
|
||||
<dt>Action: <Action>, for example:<ul>
|
||||
<li>Clean: The resource was cleaned</li>
|
||||
@ -1234,7 +1234,7 @@ For more information please see the following:</p>
|
||||
<li>Remote attestation</li>
|
||||
</ul>Antimalware Scan Interface (AMSI). Primarily used to protect scripts (PS, VBS), though it can be invoked by third parties as well.
|
||||
UAC</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Process Name: <Process in the PID></dt>
|
||||
<dt>Action: <Action>, for example:<ul>
|
||||
<li>Clean: The resource was cleaned</li>
|
||||
@ -1388,7 +1388,7 @@ Description of the error. </dt>
|
||||
<p>User action:</p>
|
||||
</td>
|
||||
<td colspan="2">
|
||||
<p>No action is necessary. The Windows Defenderclient is in a healthy state. This event is reported on an hourly basis.</p>
|
||||
<p>No action is necessary. The Windows Defender Antivirus client is in a healthy state. This event is reported on an hourly basis.</p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
@ -1428,7 +1428,7 @@ Description of the error. </dt>
|
||||
</ul>
|
||||
</dt>
|
||||
<dt>Update Type: <Update type>, either Full or Delta.</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Current Engine Version: <Current engine version></dt>
|
||||
<dt>Previous Engine Version: <Previous engine version></dt>
|
||||
</dl>
|
||||
@ -1496,7 +1496,7 @@ Description of the error. </dt>
|
||||
</ul>
|
||||
</dt>
|
||||
<dt>Update Type: <Update type>, either Full or Delta.</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Current Engine Version: <Current engine version></dt>
|
||||
<dt>Previous Engine Version: <Previous engine version></dt>
|
||||
<dt>Error Code: <Error code>
|
||||
@ -1559,7 +1559,7 @@ Description of the error. </dt>
|
||||
<dt>Current Engine Version: <Current engine version></dt>
|
||||
<dt>Previous Engine Version: <Previous engine version></dt>
|
||||
<dt>Engine Type: <Engine type>, either antimalware engine or Network Inspection System engine.</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
</dl>
|
||||
</p>
|
||||
</td>
|
||||
@ -1601,7 +1601,7 @@ Description of the error. </dt>
|
||||
<dt>New Engine Version:</dt>
|
||||
<dt>Previous Engine Version: <Previous engine version></dt>
|
||||
<dt>Engine Type: <Engine type>, either antimalware engine or Network Inspection System engine.</dt>
|
||||
<dt>User: <Domain>\<User></dt>
|
||||
<dt>User: <Domain>\\<User></dt>
|
||||
<dt>Error Code: <Error code>
|
||||
Result code associated with threat status. Standard HRESULT values.</dt>
|
||||
<dt>Error Description: <Error description>
|
||||
@ -2717,6 +2717,7 @@ This section provides the following information about Windows Defender Antivirus
|
||||
- The error code
|
||||
- The possible reason for the error
|
||||
- Advice on what to do now
|
||||
|
||||
Use the information in these tables to help troubleshoot Windows Defender Antivirus error codes.
|
||||
<table>
|
||||
<tr>
|
||||
|
||||
@ -40,13 +40,13 @@ The following table in this topic lists the Group Policy settings available in W
|
||||
Location | Setting | Documented in topic
|
||||
---|---|---
|
||||
Client interface | Enable headless UI mode | [Prevent users from seeing or interacting with the Windows Defender AV user interface](prevent-end-user-interaction-windows-defender-antivirus.md)
|
||||
Client interface | Display additional text to clients when they need to perform an action | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
|
||||
Client interface | Suppress all notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
|
||||
Client interface | Suppresses reboot notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
|
||||
Exclusions | Extension Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
|
||||
Exclusions | Path Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
|
||||
Exclusions | Process Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
|
||||
Exclusions | Turn off Auto Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
|
||||
Client interface | Display additional text to clients when they need to perform an action | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
|
||||
Client interface | Suppress all notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
|
||||
Client interface | Suppresses reboot notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
|
||||
Exclusions | Extension Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
|
||||
Exclusions | Path Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
|
||||
Exclusions | Process Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
|
||||
Exclusions | Turn off Auto Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
|
||||
MAPS | Configure the 'Block at First Sight' feature | [Enable the Block at First Sight feature](configure-block-at-first-sight-windows-defender-antivirus.md)
|
||||
MAPS | Join Microsoft MAPS | [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)
|
||||
MAPS | Send file samples when further analysis is required | [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)
|
||||
@ -63,14 +63,14 @@ Real-time protection | Configure local setting override for monitoring for incom
|
||||
Real-time protection | Configure local setting override for scanning all downloaded files and attachments | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
|
||||
Real-time protection | Configure local setting override for turn on behavior monitoring | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
|
||||
Real-time protection | Configure local setting override to turn on real-time protection | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
|
||||
Real-time protection | Define the maximum size of downloaded files and attachments to be scanned | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Monitor file and program activity on your computer | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Scan all downloaded files and attachments | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Turn off real-time protection | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Turn on behavior monitoring | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Turn on process scanning whenever real-time protection is enabled | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Turn on raw volume write notifications | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Configure monitoring for incoming and outgoing file and program activity | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Define the maximum size of downloaded files and attachments to be scanned | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Monitor file and program activity on your computer | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Scan all downloaded files and attachments | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Turn off real-time protection | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Turn on behavior monitoring | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Turn on process scanning whenever real-time protection is enabled | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Turn on raw volume write notifications | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Real-time protection | Configure monitoring for incoming and outgoing file and program activity | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Remediation | Configure local setting override for the time of day to run a scheduled full scan to complete remediation | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
|
||||
Remediation | Specify the day of the week to run a scheduled full scan to complete remediation | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
|
||||
Remediation | Specify the time of day to run a scheduled full scan to complete remediation | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
|
||||
@ -81,7 +81,7 @@ Reporting | Configure time out for detections in critically failed state | Not u
|
||||
Reporting | Configure time out for detections in non-critical failed state | Not used
|
||||
Reporting | Configure time out for detections in recently remediated state | Not used
|
||||
Reporting | Configure time out for detections requiring additional action | Not used
|
||||
Reporting | Turn off enhanced notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
|
||||
Reporting | Turn off enhanced notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
|
||||
Root | Turn off Windows Defender Antivirus | Not used
|
||||
Root | Define addresses to bypass proxy server | Not used
|
||||
Root | Define proxy auto-config (.pac) for connecting to the network | Not used
|
||||
@ -103,7 +103,7 @@ Scan | Configure local setting override for scheduled scan time | [Prevent or al
|
||||
Scan | Configure local setting override for the scan type to use for a scheduled scan | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
|
||||
Scan | Create a system restore point | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
|
||||
Scan | Turn on removal of items from scan history folder | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
|
||||
Scan | Turn on heuristics | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Scan | Turn on heuristics | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
|
||||
Scan | Turn on e-mail scanning | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
|
||||
Scan | Turn on reparse point scanning | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
|
||||
Scan | Run full scan on mapped network drives | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
|
||||
|
||||
@ -16,7 +16,7 @@ author: iaanw
|
||||
|
||||
If you are using System Center Configuration Manager or Microsoft Intune to manage the endpoints on your network, you can also use them to manage Windows Defender AV.
|
||||
|
||||
In both cases, the protection will be labelled as Endpoint Protection, although the engine is the same as that used by Windows Defender AV.
|
||||
In some cases, the protection will be labeled as Endpoint Protection, although the engine is the same as that used by Windows Defender AV.
|
||||
|
||||
See the [Endpoint Protection](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-protection) library on docs.microsoft.com for information on using Configuration Manager.
|
||||
|
||||
|
||||
@ -27,9 +27,9 @@ PowerShell cmdlets are most useful in Windows Server environments that don't rel
|
||||
> [!NOTE]
|
||||
> PowerShell cmdlets should not be used as a replacement for a full network policy management infrastructure, such as [System Center Configuration Manager](https://technet.microsoft.com/en-us/library/gg682129.aspx), [Group Policy Management Console](https://technet.microsoft.com/en-us/library/cc731212.aspx), or [Windows Defender Group Policy ADMX templates](https://support.microsoft.com/en-us/kb/927367).
|
||||
|
||||
Changes made with PowerShell will affect local settings on the endpoint where the changes are deployed or made. This means that dployments of policy with Group Policy, System Center Configuration Manager, or Microsoft Intune can overwrite changes made with PowerShell.
|
||||
Changes made with PowerShell will affect local settings on the endpoint where the changes are deployed or made. This means that deployments of policy with Group Policy, System Center Configuration Manager, or Microsoft Intune can overwrite changes made with PowerShell.
|
||||
|
||||
You can [configure which settings can be overriden locally with local policy overrides](configure-local-policy-overrides-windows-defender-antivirus.md).
|
||||
You can [configure which settings can be overridden locally with local policy overrides](configure-local-policy-overrides-windows-defender-antivirus.md).
|
||||
|
||||
PowerShell is typically installed under the folder _%SystemRoot%\system32\WindowsPowerShell_.
|
||||
|
||||
@ -38,10 +38,11 @@ PowerShell is typically installed under the folder _%SystemRoot%\system32\Window
|
||||
|
||||
1. Click **Start**, type **powershell**, and press **Enter**.
|
||||
2. Click **Windows PowerShell** to open the interface.
|
||||
> [!NOTE]
|
||||
> You may need to open an administrator-level version of PowerShell. Right-click the item in the Start menu, click **Run as administrator** and click **Yes** at the permissions prompt.
|
||||
3. Enter the command and parameters.
|
||||
|
||||
> [!NOTE]
|
||||
> You may need to open an administrator-level version of PowerShell. Right-click the item in the Start menu, click **Run as administrator** and click **Yes** at the permissions prompt.
|
||||
|
||||
To open online help for any of the cmdlets type the following:
|
||||
|
||||
```PowerShell
|
||||
|
||||
@ -20,15 +20,15 @@ author: iaanw
|
||||
|
||||
Windows Management Instrumentation (WMI) is a scripting interface that allows you to retrieve, modify, and update settings.
|
||||
|
||||
Read more about WMI at the [Microsoft Develop Network System Administration library](https://msdn.microsoft.com/en-us/library/aa394582(v=vs.85).aspx).
|
||||
Read more about WMI at the [Microsoft Developer Network System Administration library](https://msdn.microsoft.com/en-us/library/aa394582(v=vs.85).aspx).
|
||||
|
||||
Windows Defender AV has a number of specific WMI classes that can be used to perform most of the same functions as Group Policy and other management tools. Many of the classes are analogous to [Defender PowerShell cmdlets](use-powershell-cmdlets-windows-defender-antivirus.md).
|
||||
|
||||
The [MSDN Windows Defender WMIv2 Provider reference library](https://msdn.microsoft.com/en-us/library/dn439477(v=vs.85).aspx) lists the available WMI classes for Windows Defender AV, and includes example scripts.
|
||||
|
||||
Changes made with WMI will affect local settings on the endpoint where the changes are deployed or made. This means that dployments of policy with Group Policy, System Center Configuration Manager, or Microsoft Intune can overwrite changes made with WMI.
|
||||
Changes made with WMI will affect local settings on the endpoint where the changes are deployed or made. This means that deployments of policy with Group Policy, System Center Configuration Manager, or Microsoft Intune can overwrite changes made with WMI.
|
||||
|
||||
You can [configure which settings can be overriden locally with local policy overrides](configure-local-policy-overrides-windows-defender-antivirus.md).
|
||||
You can [configure which settings can be overridden locally with local policy overrides](configure-local-policy-overrides-windows-defender-antivirus.md).
|
||||
|
||||
## Related topics
|
||||
|
||||
|
||||
@ -31,7 +31,7 @@ Cloud-delivered protection for Windows Defender Antivirus, also referred to as M
|
||||
|
||||
Enabling cloud-delivered protection helps detect and block new malware - even if the malware has never been seen before - without needing to wait for a traditionally delivered definition update to block it. Definition updates can take hours to prepare and deliver, while our cloud service can deliver updated protection in seconds.
|
||||
|
||||
Cloud-delivered protecton is enabled by default, however you may need to re-enable it if it has been disabled as part of previous organizational policies.
|
||||
Cloud-delivered protection is enabled by default, however you may need to re-enable it if it has been disabled as part of previous organizational policies.
|
||||
|
||||
The following table describes the differences in cloud-based protection between recent versions of Windows and System Center Configuration Manager.
|
||||
|
||||
|
||||
@ -29,7 +29,7 @@ author: iaanw
|
||||
Windows Defender Advanced Threat Protection (ATP) is an additional service beyond Windows Defender Antivirus that helps enterprises detect, investigate, and respond to advanced persistent threats on their network.
|
||||
See the [Windows Defender Advanced Threat Protection](windows-defender-advanced-threat-protection.md) topics for more information about the service.
|
||||
|
||||
If you are enrolled in Windows Defender ATP, and you are not using Windows Defender AV as your real-time protection service on your endpoints, Windows Defender will automatically enter into a passive mode. On Windows Server 2016 SKUs, Windows Defender AV will not enter into the passive mode and will run alongisde your other antivirus product.
|
||||
If you are enrolled in Windows Defender ATP, and you are not using Windows Defender AV as your real-time protection service on your endpoints, Windows Defender will automatically enter into a passive mode. On Windows Server 2016 SKUs, Windows Defender AV will not enter into the passive mode and will run alongside your other antivirus product.
|
||||
|
||||
In passive mode, Windows Defender will continue to run (using the *msmpeng.exe* process), and will continue to be updated, however there will be no Windows Defender user interface, scheduled scans won't run, and Windows Defender will not provide real-time protection from malware.
|
||||
|
||||
|
||||
@ -66,7 +66,6 @@ Some features require a certain version of Windows 10 - the minimum version requ
|
||||
|
||||
Functionality, configuration, and management is largely the same when using Windows Defender Antivirus on Windows Server 2016, however [there are some differences](windows-defender-antivirus-on-windows-server-2016.md).
|
||||
|
||||
#
|
||||
|
||||
|
||||
|
||||
@ -74,7 +73,7 @@ Functionality, configuration, and management is largely the same when using Wind
|
||||
|
||||
Topic | Description
|
||||
:---|:---
|
||||
[Evaluate Windows Defender Antivirus protection](evaluate-windows-defender-antivirus.md) | Evaluate the protection capabilities of Windows Defender Antivirus with a specialized evaluation guide and powershell script
|
||||
[Evaluate Windows Defender Antivirus protection](evaluate-windows-defender-antivirus.md) | Evaluate the protection capabilities of Windows Defender Antivirus with a specialized evaluation guide and PowerShell script
|
||||
[Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md) | While traditional client deployment is not required for Windows Defender AV, you will need to enable the service. You can also manage how protection and product updates are applies, and receive reports from Configuration Manager, Intune, and with some security information and event monitoring (SIEM) tools
|
||||
[Configure Windows Defender features](configure-windows-defender-antivirus-features.md) | Windows Defender AV has a large set of configurable features and options. You can configure options such as cloud-delivered protection, always-on monitoring and scanning, and how end-users can interact or override global policy settings
|
||||
[Customize, initiate, and review the results of scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md) | You can set up scheduled scans, run on-demand scans, and configure how remediation works when threats are detected
|
||||
|
||||
@ -31,6 +31,8 @@ author: iaanw
|
||||
|
||||
Windows Defender Offline is an antimalware scanning tool that lets you boot and run a scan from a trusted environment. The scan runs from outside the normal Windows kernel so it can target malware that attempts to bypass the Windows shell, such as viruses and rootkits that infect or overwrite the master boot record (MBR).
|
||||
|
||||
You can use Windows Defender Offline if you suspect a malware infection, or you want to confirm a thorough clean of the endpoint after a malware outbreak.
|
||||
|
||||
In Windows 10, Windows Defender Offline can be run with one click directly from the [Windows Defender Security Center app](windows-defender-security-center-antivirus.md). In previous versions of Windows, a user had to install Windows Defender Offline to bootable media, restart the endpoint, and load the bootable media.
|
||||
|
||||
## Pre-requisites and requirements
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user