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50
windows/security/threat-protection/windows-defender-application-control/applocker/using-event-viewer-with-applocker.md
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@ -1,6 +1,6 @@
---
title: Using Event Viewer with AppLocker (Windows)
description: This topic lists AppLocker events and describes how to use Event Viewer with AppLocker.
description: This article lists AppLocker events and describes how to use Event Viewer with AppLocker.
ms.assetid: 109abb10-78b1-4c29-a576-e5a17dfeb916
ms.reviewer:
ms.author: vinpa
@ -14,7 +14,7 @@ manager: aaroncz
audience: ITPro
ms.topic: conceptual
ms.technology: itpro-security
ms.date: 12/31/2017
ms.date: 02/02/2023
---
# Using Event Viewer with AppLocker
@ -28,41 +28,44 @@ ms.date: 12/31/2017
>[!NOTE]
>Some capabilities of Windows Defender Application Control are only available on specific Windows versions. Learn more about the [Windows Defender Application Control feature availability](/windows/security/threat-protection/windows-defender-application-control/feature-availability).
This topic lists AppLocker events and describes how to use Event Viewer with AppLocker.
This article lists AppLocker events and describes how to use Event Viewer with AppLocker.
The AppLocker log contains information about applications that are affected by AppLocker rules. Each event in the log contains detailed info about:
The AppLocker log contains information about applications that are affected by AppLocker rules. Each event in the log contains details such as the following information:
- Which file is affected and the path of that file
- Which packaged app is affected and the package identifier of the app
- Whether the file or packaged app is allowed or blocked
- The rule type (path, file hash, or publisher)
- The rule name
- The security identifier (SID) for the user or group identified in the rule
- Which file is affected and the path of that file
- Which packaged app is affected and the package identifier of the app
- Whether the file or packaged app is allowed or blocked
- The rule type (path, file hash, or publisher)
- The rule name
- The security identifier (SID) for the user or group identified in the rule
Review the entries in the Event Viewer to determine if any applications aren't included in the rules that you automatically generated. For instance, some line-of-business apps are installed to non-standard locations, such as the root of the active drive (for example: %SystemDrive%).
Review the entries in the Event Viewer to determine if any applications aren't included in the rules that you automatically generated. For instance, some line-of-business apps are installed to non-standard locations, such as the root of the active drive (for example, `%SystemDrive%`).
For info about what to look for in the AppLocker event logs, see [Monitor app usage with AppLocker](monitor-application-usage-with-applocker.md).
> [!NOTE]
> The AppLocker event logs are very verbose and can result in a large number of events depending on the policies deployed, particularly in the *AppLocker - EXE and DLL* event log. If you're using an event forwarding and collection service, like LogAnalytics, you may want to adjust the configuration for that event log to only collect Error events or stop collecting events from that log altogether.
**To review the AppLocker log in Event Viewer**
1. Open Event Viewer.
2. In the console tree under **Application and Services Logs\\Microsoft\\Windows**, click **AppLocker**.
1. Open Event Viewer.
2. In the console tree under **Application and Services Logs\\Microsoft\\Windows**, select **AppLocker**.
The following table contains information about the events that you can use to determine which apps are affected by AppLocker rules.
| Event ID | Level | Event message | Description |
| - | - | - | - |
| 8000 | Error| Application Identity Policy conversion failed. Status *<%1> *| Indicates that the policy wasn't applied correctly to the computer. The status message is provided for troubleshooting purposes.|
| --- | --- | --- | --- |
| 8000 | Error| Application Identity Policy conversion failed. Status * <%1> *| Indicates that the policy wasn't applied correctly to the computer. The status message is provided for troubleshooting purposes.|
| 8001 | Information| The AppLocker policy was applied successfully to this computer.| Indicates that the AppLocker policy was successfully applied to the computer.|
| 8002 | Information| *<File name> * was allowed to run.| Specifies that the .exe or .dll file is allowed by an AppLocker rule.|
| 8003 | Warning| *<File name> * was allowed to run but would have been prevented from running if the AppLocker policy was enforced.| Applied only when the **Audit only** enforcement mode is enabled. Specifies that the .exe or .dll file would be blocked if the **Enforce rules** enforcement mode were enabled. |
| 8004 | Error| *<File name> * was not allowed to run.| Access to *<file name>* is restricted by the administrator. Applied only when the **Enforce rules** enforcement mode is set either directly or indirectly through Group Policy inheritance. The .exe or .dll file can't run.|
| 8005| Information| *<File name> * was allowed to run.| Specifies that the script or .msi file is allowed by an AppLocker rule.|
| 8006 | Warning| *<File name> * was allowed to run but would have been prevented from running if the AppLocker policy was enforced.| Applied only when the **Audit only** enforcement mode is enabled. Specifies that the script or .msi file would be blocked if the **Enforce rules** enforcement mode were enabled. |
| 8007 | Error| *<File name> * was not allowed to run.| Access to *<file name>* is restricted by the administrator. Applied only when the **Enforce rules** enforcement mode is set either directly or indirectly through Group Policy inheritance. The script or .msi file can't run.|
| 8002 | Information| *<File name> * was allowed to run.| Specifies that the .exe or .dll file is allowed by an AppLocker rule.|
| 8003 | Warning| *<File name> * was allowed to run but would have been prevented from running if the AppLocker policy was enforced.| Applied only when the **Audit only** enforcement mode is enabled. Specifies that the .exe or .dll file would be blocked if the **Enforce rules** enforcement mode were enabled. |
| 8004 | Error| *<File name> * was not allowed to run.| Access to *<file name>* is restricted by the administrator. Applied only when the **Enforce rules** enforcement mode is set either directly or indirectly through Group Policy inheritance. The .exe or .dll file can't run.|
| 8005| Information| *<File name> * was allowed to run.| Specifies that the script or .msi file is allowed by an AppLocker rule.|
| 8006 | Warning| *<File name> * was allowed to run but would have been prevented from running if the AppLocker policy was enforced.| Applied only when the **Audit only** enforcement mode is enabled. Specifies that the script or .msi file would be blocked if the **Enforce rules** enforcement mode were enabled. |
| 8007 | Error| *<File name> * was not allowed to run.| Access to *<file name>* is restricted by the administrator. Applied only when the **Enforce rules** enforcement mode is set either directly or indirectly through Group Policy inheritance. The script or .msi file can't run.|
| 8008| Error| AppLocker disabled on the SKU.| Added in Windows Server 2012 and Windows 8.|
| 8020| Information| Packaged app allowed.| Added in Windows Server 2012 and Windows 8.|
| 8021| Information| Packaged app audited.| Added in Windows Server 2012 and Windows 8.|
| 8021| Information| Packaged app audited.| Added in Windows Server 2012 and Windows 8.|
| 8022| Information| Packaged app disabled.| Added in Windows Server 2012 and Windows 8.|
| 8023 | Information| Packaged app installation allowed.| Added in Windows Server 2012 and Windows 8.|
| 8024 | Information| Packaged app installation audited.| Added in Windows Server 2012 and Windows 8.|
@ -83,8 +86,7 @@ The following table contains information about the events that you can use to de
| 8040 | Error | Package family name * version * was prevented from installing or updating due to Config CI policy | Added in Windows Server 2016 and Windows 10.|
## Related topics
## Related articles
- [Tools to use with AppLocker](tools-to-use-with-applocker.md)

5
windows/security/threat-protection/windows-defender-application-control/configure-authorized-apps-deployed-with-a-managed-installer.md
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@ -13,7 +13,7 @@ author: jsuther1974
ms.reviewer: jogeurte
ms.author: vinpa
manager: aaroncz
ms.date: 08/26/2022
ms.date: 02/02/2023
ms.technology: itpro-security
ms.topic: article
---
@ -62,6 +62,9 @@ To turn on managed installer tracking, you must:
- Create and deploy an AppLocker policy that defines your managed installer rules and enables services enforcement for executables and DLLs.
- Enable AppLocker's Application Identity and AppLockerFltr services.
> [!NOTE]
> The managed installer AppLocker policy below is designed to be safely merged with any pre-existing AppLocker policies and won't change the behavior of those policies. However, if applied on a device that doesn't currently have any AppLocker policy, you will see a large increase in warning events generated in the *AppLocker - EXE and DLL* event log. If you're using an event forwarding and collection service, like LogAnalytics, you may want to adjust the configuration for that event log to only collect Error events or stop collecting events from that log altogether.
> [!NOTE]
> MEMCM will automatically configure itself as a managed installer, and enable the required AppLocker components, if you deploy one of its inbox WDAC policies. If you are configuring MEMCM as a managed installer using any other method, additional setup is required. Use the [**ManagedInstaller** cmdline switch in your ccmsetup.exe setup](/mem/configmgr/core/clients/deploy/about-client-installation-properties#managedinstaller). Or you can deploy one of the MEMCM inbox audit mode policies alongside your custom policy.

13
windows/security/threat-protection/windows-defender-application-control/design/script-enforcement.md
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@ -9,7 +9,7 @@ ms.reviewer: jogeurte
ms.author: jogeurte
ms.manager: jsuther
manager: aaroncz
ms.date: 11/02/2022
ms.date: 02/02/2023
ms.technology: itpro-security
ms.topic: article
ms.localizationpriority: medium
@ -26,14 +26,19 @@ ms.localizationpriority: medium
> [!NOTE]
> Some capabilities of Windows Defender Application Control are only available on specific Windows versions. Learn more about the [Application Control feature availability](/windows/security/threat-protection/windows-defender-application-control/feature-availability).
> [!IMPORTANT]
> Option **11 Disabled:Script Enforcement** is not supported on **Windows Server 2016** and should not be used on that platform. Doing so may result in unexpected script enforcement behaviors.
## Script enforcement overview
By default, script enforcement is enabled for all WDAC policies unless the option **11 Disabled:Script Enforcement** is set in the policy. WDAC script enforcement involves a handshake between an enlightened script host, such as PowerShell, and WDAC. The actual enforcement behavior, however, is handled entirely by the script host. Some script hosts, like the Microsoft HTML Application Host (mshta.exe), simply block all code execution if any WDAC UMCI policy is active. Most script hosts first ask WDAC whether a script should be allowed to run based on the WDAC policies currently active. The script host then either blocks, allows, or changes *how* the script is run to best protect the user and the device.
Validation for signed scripts is done using the [WinVerifyTrust API](/windows/win32/api/wintrust/nf-wintrust-winverifytrust). To pass validation, the signature root must be present in the trusted root store on the device and be allowed by your WDAC policy. This behavior is different from WDAC validation for executable files, which doesn't require installation of the root certificate.
WDAC shares the *AppLocker - MSI and Script* event log for all script enforcement events. Whenever a script host asks WDAC if a script should be allowed, an event will be logged with the answer WDAC returned to the script host. For more information on WDAC script enforcement events, see [Understanding Application Control events](/windows/security/threat-protection/windows-defender-application-control/event-id-explanations#windows-applocker-msi-and-script-log).
> [!IMPORTANT]
> When a script runs that is not allowed by policy, WDAC raises an event indicating that the script was "blocked". However, the actual script enforcement behavior is handled by the script host and may not actually completely block the file from running.
> [!NOTE]
> When a script runs that is not allowed by policy, WDAC raises an event indicating that the script was "blocked." However, the actual script enforcement behavior is handled by the script host and may not actually completely block the file from running.
>
> Also be aware that some script hosts may change how they behave even if a WDAC policy is in audit mode only. You should review the information below for each script host and test thoroughly within your environment to ensure the scripts you need to run are working properly.
@ -43,7 +48,7 @@ WDAC shares the *AppLocker - MSI and Script* event log for all script enforcemen
All PowerShell scripts (.ps1), modules (.psm1), and manifests (.psd1) must be allowed by WDAC policy in order to run with Full Language rights.
Any **dependent modules** that are loaded by an allowed module must also be allowed by WDAC policy, and module functions must be exported explicitly by name when WDAC is enforced. Modules that do not specify any exported functions (no export name list) will still load but no module functions will be accessible. Modules that use wildcards (\*) in their name will fail to load.
Any **dependent modules** that are loaded by an allowed module must also be allowed by WDAC policy, and module functions must be exported explicitly by name when WDAC is enforced. Modules that don't specify any exported functions (no export name list) will still load but no module functions will be accessible. Modules that use wildcards (\*) in their name will fail to load.
Any PowerShell script that isn't allowed by WDAC policy will still run, but only in Constrained Language Mode.

7
windows/security/threat-protection/windows-defender-application-control/operations/known-issues.md
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@ -9,7 +9,7 @@ ms.reviewer: jogeurte
ms.author: jogeurte
ms.manager: jsuther
manager: aaroncz
ms.date: 07/01/2022
ms.date: 02/02/2023
ms.technology: itpro-security
ms.topic: article
ms.localizationpriority: medium
@ -19,7 +19,6 @@ ms.localizationpriority: medium
**Applies to:**
- Windows 10
- Windows 11
- Windows Server 2016 and above
@ -27,11 +26,11 @@ ms.localizationpriority: medium
> [!NOTE]
> Some capabilities of Windows Defender Application Control are only available on specific Windows versions. Learn more about the [Application Control feature availability](/windows/security/threat-protection/windows-defender-application-control/feature-availability).
This topic covers tips and tricks for admins and known issues with Windows Defender Application Control (WDAC). Test this configuration in your lab before enabling it in production.
This article covers tips and tricks for admins and known issues with Windows Defender Application Control (WDAC). Test this configuration in your lab before enabling it in production.
## Managed Installer and ISG will cause garrulous events
When Managed Installer and ISG are enabled, 3091 and 3092 events will be logged when a file didn't have Managed Installer or ISG authorization, regardless of whether the file was allowed. Beginning with the September 2022 C release, these events will be moved to the verbose channel since the events don't indicate an issue with the policy.
When Managed Installer and ISG are enabled, 3091 and 3092 events will be logged when a file didn't have Managed Installer or ISG authorization, regardless of whether the file was allowed. These events have been moved to the verbose channel beginning with the September 2022 Update Preview since the events don't indicate an issue with the policy.
## .NET native images may generate false positive block events