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@ -112,6 +112,4 @@ It is important to remember that Microsoft sees a wider and broader set of threa
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The capabilities within [Windows Defender ATP](https://www.microsoft.com/en-us/windowsforbusiness?ocid=cx-docs-avreports) provide [additional layers of protection](https://cloudblogs.microsoft.com/microsoftsecure/2017/12/11/detonating-a-bad-rabbit-windows-defender-antivirus-and-layered-machine-learning-defenses?ocid=cx-docs-avreports) that are not factored into industry tests, and address some of the latest and most sophisticated threats. Isolating AV from the rest of Windows Defender ATP creates a partial picture of how our security stack operates in the real world. For example, attack surface reduction and endpoint detection & response capabilities can help prevent malware from getting onto devices in the first place. We have proven that [Windows Defender ATP components catch samples](https://query.prod.cms.rt.microsoft.com/cms/api/am/binary/RE2ouJA?ocid=cx-docs-avreports) that Windows Defender Antivirus missed in these industry tests, which is more representative of how effectively our security suite protects customers in the real world.
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Using independent tests, customers can view one aspect of their security suite but can't assess the complete protection of all the security features. Microsoft is highly engaged in working with several independent testers to evolve security testing to focus on the end-to-end security stack. In the meantime, customers can evaluate Windows Defender Advanced Threat Protection in their own networks by signing up for a [90-day trial of Windows Defender ATP](https://www.microsoft.com/en-us/WindowsForBusiness/windows-atp?ocid=cx-docs-avreports), or [enabling Preview features on existing tenants](https://docs.microsoft.com/windows/security/threat-protection/windows-defender-atp/preview-settings-windows-defender-advanced-threat-protection?ocid=cx-docs-avreports).
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Using independent tests, customers can view one aspect of their security suite but can't assess the complete protection of all the security features. Microsoft is highly engaged in working with several independent testers to evolve security testing to focus on the end-to-end security stack. In the meantime, customers can evaluate Windows Defender Advanced Threat Protection in their own networks by signing up for a [90-day trial of Windows Defender ATP](https://www.microsoft.com/en-us/WindowsForBusiness/windows-atp?ocid=cx-docs-avreports), or [enabling Preview features on existing tenants](https://docs.microsoft.com/windows/security/threat-protection/windows-defender-atp/preview-settings-windows-defender-advanced-threat-protection?ocid=cx-docs-avreports).
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@ -11,7 +11,6 @@ ms.pagetype: security
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ms.localizationpriority: medium
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author: andreabichsel
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ms.author: v-anbic
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ms.date: 09/03/2018
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---
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# Configure Windows Defender Antivirus exclusions on Windows Server
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@ -159,6 +158,9 @@ This section lists the default exclusions for all Windows Server 2016 roles.
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- The Distributed File System Replication (DFSR) database and working folders. These folders are specified by the registry key `HKEY_LOCAL_MACHINE\System\Currentcontrolset\Services\DFSR\Parameters\Replication Groups\GUID\Replica Set Configuration File`
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> [!NOTE]
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> For custom locations, see [Opt out of automatic exclusions](https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-antivirus/configure-server-exclusions-windows-defender-antivirus#opt-out-of-automatic-exclusions).
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- *%systemdrive%*\System Volume Information\DFSR\\$db_normal$
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- *%systemdrive%*\System Volume Information\DFSR\FileIDTable_*
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@ -19,7 +19,7 @@ ms.author: v-anbic
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- [Windows Defender Advanced Threat Protection (Windows Defender ATP)](https://wincom.blob.core.windows.net/documents/Windows10_Commercial_Comparison.pdf)
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Attack surface reduction rules help prevent behaviors malware often uses to infect computers with malicious code. You can set attack surface reduction rules for computers running Windows 10, version 1803 or later, or Windows Server 2019.
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Attack surface reduction rules help prevent behaviors malware often uses to infect computers with malicious code. You can set attack surface reduction rules for computers running Windows 10, version 1709 or later, Windows Server 2016 1803 or later, or Windows Server 2019.
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To use attack surface reduction rules, you need a Windows 10 Enterprise E3 license or higher. A Windows E5 license gives you the advanced management capabilities to power them. These include monitoring, analytics, and workflows available in [Windows Defender Advanced Threat Protection](../windows-defender-atp/windows-defender-advanced-threat-protection.md), as well as reporting and configuration capabilities in the M365 Security Center. These advanced capabilities aren't available with an E3 license, but you can use attack surface reduction rule events in Event Viewer to help facilitate deployment.
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@ -31,13 +31,13 @@ Attack surface reduction rules target behaviors that malware and malicious apps
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You can use [audit mode](audit-windows-defender-exploit-guard.md) to evaluate how attack surface reduction rules would impact your organization if they were enabled. It's best to run all rules in audit mode first so you can understand their impact on your line-of-business applications. Many line-of-business applications are written with limited security concerns, and they may perform tasks similar to malware. By monitoring audit data and [adding exclusions](https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-exploit-guard/enable-attack-surface-reduction#exclude-files-and-folders-from-asr-rules) for necessary applications, you can deploy attack surface reduction rules without impacting productivity.
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Triggered rules display a notification on the device. You can [customize the notification](customize-attack-surface-reduction.md#customize-the-notification) with your company details and contact information. The notification also displays in the Windows Defender ATP Security Center and on the M365 console.
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Triggered rules display a notification on the device. You can [customize the notification](customize-attack-surface-reduction.md#customize-the-notification) with your company details and contact information. The notification also displays in the Windows Defender Security Center and in the Microsoft 365 securty center.
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For information about configuring attack surface reduction rules, see [Enable attack surface reduction rules](enable-attack-surface-reduction.md).
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## Attack surface reduction rules
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The following sections describe each of the 15 attack surface reduction rules. This table shows their corresponding GUIDs, which you use if you're configuring the rules with Group Policy:
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The following sections describe each of the 15 attack surface reduction rules. This table shows their corresponding GUIDs, which you use if you're configuring the rules with Group Policy or PowerShell. If you use System Center Configuration Manager or Microsoft Intune, you do not need the GUIDs:
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Rule name | GUID
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-|-
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@ -219,7 +219,7 @@ This rule prevents Outlook from creating child processes. It protects against so
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>[!NOTE]
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>This rule applies to Outlook and Outlook.com only.
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Intune name: Not yet available
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Intune name: Process creation from Office communication products (beta)
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SCCM name: Not yet available
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@ -229,7 +229,7 @@ GUID: 26190899-1602-49e8-8b27-eb1d0a1ce869
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Through social engineering or exploits, malware can download and launch additional payloads and break out of Adobe Reader. This rule prevents attacks like this by blocking Adobe Reader from creating additional processes.
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Intune name: Not applicable
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Intune name: Process creation from Adobe Reader (beta)
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SCCM name: Not applicable
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@ -238,4 +238,4 @@ GUID: 7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c
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## Related topics
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- [Enable attack surface reduction rules](enable-attack-surface-reduction.md)
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- [Evaluate attack surface reduction rules](evaluate-attack-surface-reduction.md)
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- [Evaluate attack surface reduction rules](evaluate-attack-surface-reduction.md)
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