Block disk sectors only (starting in Configuration Manager version 1802).For more information, see Controlled folder access and the Event IDs it uses. Helps protect files in key system folders from changes made by malicious and suspicious apps, including file-encrypting ransomware malware. Block untrusted and unsigned processes that run from USB.Ĭontrolled folder access policies and options.Block executable files from running unless they meet a prevalence, age, or trusted list criteria.Įxternal device threats: (starting in Configuration Manager version 1802). Block credential stealing from the Windows local security authority subsystem.Operating system threats: (starting in Configuration Manager version 1802) Use advanced protection against ransomware.Ransomware threats: (starting in Configuration Manager version 1802) Block execution of potentially obfuscated scripts.Block JavaScript or VBScript from launching downloaded executable content.Block Win32 API calls from Office macros.Block Office applications from injecting code into other processes.Block Office applications from creating executable content.Block Office application from creating child processes.Block executable content from email client and webmail.Learn more about Attack Surface Reduction and the Event IDs used for it.įiles and Folders to exclude from Attack Surface Reduction rules - Click on Set and specify any files or folders to exclude. Windows Defender Exploit Guard policy settings Attack Surface Reduction policies and optionsĪttack Surface Reduction can reduce the attack surface of your applications with intelligent rules that stop the vectors used by Office, script, and mail-based malware. $exploitGuardObject.ExploitProtectionSettings = $null $exploitGuardObject = Get-WmiObject -Namespace "root/cimv2/mdm/dmmap" -Class "MDM_Policy_Config01_ExploitGuard02" -Filter "InstanceID='ExploitGuard' and ParentID='./Vendor/MSFT/Policy/Config'" $defenderObject.ControlledFolderAccessProtectedFolders = $null $defenderObject.ControlledFolderAccessAllowedApplications = $null $defenderObject.EnableControlledFolderAccess = $null $defenderObject.AttackSurfaceReductionOnlyExclusions = $null $defenderObject.AttackSurfaceReductionRules = $null The following PowerShell script can be run under SYSTEM context to remove these settings: $defenderObject = Get-WmiObject -Namespace "root/cimv2/mdm/dmmap" -Class "MDM_Policy_Config01_Defender02" -Filter "InstanceID='Defender' and ParentID='./Vendor/MSFT/Policy/Config'" Delete not supported is recorded in the client's ExploitGuardHandler.log if you remove the client's Exploit Guard deployment. Once you deploy an Exploit Guard policy, such as Attack Surface Reduction or Controlled folder access, the Exploit Guard settings will not removed from the clients if you remove the deployment. Network protection: Set network protection to block or audit access to suspicious domains.Ĭomplete the wizard to create the policy, which you can later deploy to devices.You can export these settings from the Windows Defender Security Center app on a Windows 10 or later device. Exploit protection: Specify an XML file that contains settings for mitigating exploits of system processes and apps.You can also specify additional folders that are not protected by default. Controlled folder access: Configure blocking or auditing, and then add Apps that can bypass this policy.You can also exclude specific files or folders from this rule. Attack Surface Reduction: Configure the Office threat, scripting threats, and email threats you want to block or audit.For each component you select, you can then configure additional details. Next, select the Exploit Guard components you want to manage with this policy. On the General page of the Create Configuration Item Wizard, specify a name, and optional description for the configuration item. On the Home tab, in the Create group, click Create Exploit Policy. In the Configuration Manager console, go to Assets and compliance > Endpoint Protection, and then click Windows Defender Exploit Guard. The following requirements must also be satisfied, depending on the components and rules configured: Exploit Guard componentĭevices must have Microsoft Defender for Endpoint always-on protection enabled. Managed devices must run Windor later the minimum Windows Server build is version 1809 or later. For more information, see Enable optional features from updates. You must enable this feature before using it. Configuration Manager doesn't enable this optional feature by default.
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