deepblue/windows-itpro-docs
1
0
Fork 0
mirror of https://github.com/MicrosoftDocs/windows-itpro-docs.git synced 2025-06-28 00:33:40 +00:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

Merge pull request #5854 from MicrosoftDocs/repo_sync_working_branch

Browse Source 
Confirm merge from repo_sync_working_branch to master to sync with https://github.com/MicrosoftDocs/windows-itpro-docs (branch public)
This commit is contained in:
Gary Moore
2021-10-19 15:12:14 -07:00
committed by GitHub
parent 6dd727298a e37b6e4272
commit 156fdcc9af
1 changed files with 11 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
windows/security/threat-protection/windows-defender-application-control/configure-authorized-apps-deployed-with-a-managed-installer.md
View File

@ -14,7 +14,7 @@ author: jsuther1974
ms.reviewer: isbrahm
ms.author: dansimp
manager: dansimp
ms.date: 08/10/2021
ms.date: 10/19/2021
ms.technology: mde
---
@ -26,8 +26,8 @@ ms.technology: mde
- Windows 11
- Windows Server 2016 and above
>[!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](feature-availability.md).
> [!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](feature-availability.md).
Windows 10, version 1703 introduced a new option for Windows Defender Application Control (WDAC), called _managed installer_, that helps balance security and manageability when enforcing application control policies. This option lets you automatically allow applications installed by a designated software distribution solution such as Microsoft Endpoint Configuration Manager.
@ -41,8 +41,7 @@ Ensure that the WDAC policy allows the system/boot components and any other auth
## Security considerations with managed installer
Since managed installer is a heuristic-based mechanism, it doesn't provide the same security guarantees that explicit allow or deny rules do.
It's best suited for use where each user operates as a standard user and where all software is deployed and installed by a software distribution solution, such as Microsoft Endpoint Configuration Manager (MEMCM).
Since managed installer is a heuristic-based mechanism, it doesn't provide the same security guarantees that explicit allow or deny rules do. The managed installer is best suited for use where each user operates as a standard user and where all software is deployed and installed by a software distribution solution, such as Microsoft Endpoint Configuration Manager (MEMCM).
Users with administrator privileges, or malware running as an administrator user on the system, may be able to circumvent the intent of Windows Defender Application Control when the managed installer option is allowed.
@ -85,19 +84,19 @@ Currently, neither the AppLocker policy creation UI in GPO Editor nor the PowerS
2. Manually rename the rule collection to ManagedInstaller
Change
Change:
```powershell
<RuleCollection Type="Exe" EnforcementMode="NotConfigured">
```
to
to:
```powershell
<RuleCollection Type="ManagedInstaller" EnforcementMode="AuditOnly">
```
An example of a valid Managed Installer rule collection, using Microsoft Endpoint Config Manager (MEMCM), MEM (Intune), Powershell, and PowerShell ISE, is shown below. Remove any rules that you do not wish to designate as a Managed Installer.
An example of a valid Managed Installer rule collection, using Microsoft Endpoint Config Manager (MEMCM), MEM (Intune), PowerShell, and PowerShell ISE, is shown below. Remove any rules that you do not wish to designate as a Managed Installer.
```xml
<AppLockerPolicy Version="1">
@ -177,45 +176,9 @@ An example of a valid Managed Installer rule collection, using Microsoft Endpoin
</RuleCollection>
</AppLockerPolicy>
```
### Enable service enforcement in AppLocker policy
Since many installation processes rely on services, it is typically necessary to enable tracking of services.
Correct tracking of services requires the presence of at least one rule in the rule collection. So, a simple audit-only rule will suffice. The audit rule can be added to the policy created above, which specifies the rule collection of your managed installer.
For example:
```xml
<RuleCollection Type="Dll" EnforcementMode="AuditOnly" >
<FilePathRule Id="86f235ad-3f7b-4121-bc95-ea8bde3a5db5" Name="Dummy Rule" Description="" UserOrGroupSid="S-1-1-0" Action="Deny">
<Conditions>
<FilePathCondition Path="%OSDRIVE%\ThisWillBeBlocked.dll" />
</Conditions>
</FilePathRule>
<RuleCollectionExtensions>
<ThresholdExtensions>
<Services EnforcementMode="Enabled" />
</ThresholdExtensions>
<RedstoneExtensions>
<SystemApps Allow="Enabled"/>
</RedstoneExtensions>
</RuleCollectionExtensions>
</RuleCollection>
<RuleCollection Type="Exe" EnforcementMode="AuditOnly">
<FilePathRule Id="9420c496-046d-45ab-bd0e-455b2649e41e" Name="Dummy Rule" Description="" UserOrGroupSid="S-1-1-0" Action="Deny">
<Conditions>
<FilePathCondition Path="%OSDRIVE%\ThisWillBeBlocked.exe" />
</Conditions>
</FilePathRule>
<RuleCollectionExtensions>
<ThresholdExtensions>
<Services EnforcementMode="Enabled" />
</ThresholdExtensions>
<RedstoneExtensions>
<SystemApps Allow="Enabled"/>
</RedstoneExtensions>
</RuleCollectionExtensions>
</RuleCollection>
```
>[!NOTE]
>Since many installation processes rely on services, it is typically necessary to enable tracking of services. Correct tracking of services requires the presence of at least one rule in the rule collection. So, a simple audit-only rule will suffice.
## Enable the managed installer option in WDAC policy
@ -234,7 +197,7 @@ Below are steps to create a WDAC policy that allows Windows to boot and enables
Set-CIPolicyIdInfo -FilePath <XML filepath> -PolicyName "<friendly name>" -ResetPolicyID
```
3. Set Option 13 (Enabled:Managed Installer)
3. Set Option 13 (Enabled:Managed Installer).
```powershell
Set-RuleOption -FilePath <XML filepath> -Option 13