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Showing content from https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/exploit-protection below:

Apply mitigations to help prevent attacks through vulnerabilities - Microsoft Defender for Endpoint

Applies to:

Exploit protection automatically applies many exploit mitigation techniques to operating system processes and apps. Exploit protection is supported beginning with Windows 10, version 1709, Windows 11, and Windows Server, version 1803.

Exploit protection works best with Defender for Endpoint - which gives you detailed reporting into exploit protection events and blocks as part of the usual alert investigation scenarios.

You can enable exploit protection on an individual device, and then use Group Policy to distribute the XML file to multiple devices at once.

When a mitigation is found on the device, a notification is displayed from the Action Center. You can customize the notification with your company details and contact information. You can also enable the rules individually to customize what techniques the feature monitors.

You can also use audit mode to evaluate how exploit protection would affect your organization if it were enabled.

Many of the features in the Enhanced Mitigation Experience Toolkit (EMET) are included in exploit protection. In fact, you can convert and import existing your EMET configuration profiles into exploit protection. To learn more, see Import, export, and deploy exploit protection configurations.

Warning

Some security mitigation technologies might have compatibility issues with some applications. You should test exploit protection in all target use scenarios by using audit mode before deploying the configuration across a production environment or the rest of your network.

Review exploit protection events in the Microsoft Defender portal

Defender for Endpoint provides detailed reporting into events and blocks as part of its alert investigation scenarios.

You can query Defender for Endpoint data by using Advanced hunting. If you're using audit mode, you can use advanced hunting to see how exploit protection settings could affect your environment.

Here's an example query:

DeviceEvents
| where ActionType startswith 'ExploitGuard' and ActionType !contains 'NetworkProtection'

Exploit Protection and advanced hunting

The advanced hunting actiontypes available for Exploit Protection are as follows:

Exploit Protection mitigation name Exploit Protection - Advanced Hunting - ActionTypes Arbitrary code guard ExploitGuardAcgAudited
ExploitGuardAcgEnforced
Don't allow child processes ExploitGuardChildProcessAudited
ExploitGuardChildProcessBlocked
Export address filtering (EAF) ExploitGuardEafViolationAudited
ExploitGuardEafViolationBlocked
Import address filtering (IAF) ExploitGuardIafViolationAudited
ExploitGuardIafViolationBlocked
Block low integrity images ExploitGuardLowIntegrityImageAudited
ExploitGuardLowIntegrityImageBlocked
Code integrity guard ExploitGuardNonMicrosoftSignedAudited
ExploitGuardNonMicrosoftSignedBlocked
â¢ Simulate execution (SimExec)
â¢ Validate API invocation (CallerCheck)
â¢ Validate stack integrity (StackPivot)
ExploitGuardRopExploitAudited
ExploitGuardRopExploitBlocked
Block remote images ExploitGuardSharedBinaryAudited
ExploitGuardSharedBinaryBlocked
Disable Win32k system calls ExploitGuardWin32SystemCallAudited
ExploitGuardWin32SystemCallBlocked
Review exploit protection events in Windows Event Viewer

You can review the Windows event log to see events that are created when exploit protection blocks (or audits) an app:

Provider/source Event ID Description Security-Mitigations 1 ACG audit Security-Mitigations 2 ACG enforce Security-Mitigations 3 Don't allow child processes audit Security-Mitigations 4 Don't allow child processes block Security-Mitigations 5 Block low integrity images audit Security-Mitigations 6 Block low integrity images block Security-Mitigations 7 Block remote images audit Security-Mitigations 8 Block remote images block Security-Mitigations 9 Disable win32k system calls audit Security-Mitigations 10 Disable win32k system calls block Security-Mitigations 11 Code integrity guard audit Security-Mitigations 12 Code integrity guard block Security-Mitigations 13 EAF audit Security-Mitigations 14 EAF enforce Security-Mitigations 15 EAF+ audit Security-Mitigations 16 EAF+ enforce Security-Mitigations 17 IAF audit Security-Mitigations 18 IAF enforce Security-Mitigations 19 ROP StackPivot audit Security-Mitigations 20 ROP StackPivot enforce Security-Mitigations 21 ROP CallerCheck audit Security-Mitigations 22 ROP CallerCheck enforce Security-Mitigations 23 ROP SimExec audit Security-Mitigations 24 ROP SimExec enforce WER-Diagnostics 5 CFG Block Win32K 260 Untrusted Font Mitigation comparison

The mitigations available in EMET are included natively in Windows 10 (starting with version 1709), Windows 11, and Windows Server (starting with version 1803), under Exploit protection.

The table in this section indicates the availability and support of native mitigations between EMET and exploit protection.

Mitigation Available under exploit protection Available in EMET Arbitrary code guard (ACG) Yes Yes
As "Memory Protection Check" Block remote images Yes Yes
As "Load Library Check" Block untrusted fonts Yes Yes Data Execution Prevention (DEP) Yes Yes Export address filtering (EAF) Yes Yes Force randomization for images (Mandatory ASLR) Yes Yes NullPage Security Mitigation Yes
Included natively in Windows 10 and Windows 11
For more information, see Mitigate threats by using Windows 10 security features Yes Randomize memory allocations (Bottom-Up ASLR) Yes Yes Simulate execution (SimExec) Yes Yes Validate API invocation (CallerCheck) Yes Yes Validate exception chains (SEHOP) Yes Yes Validate stack integrity (StackPivot) Yes Yes Certificate trust (configurable certificate pinning) Windows 10 and Windows 11 provide enterprise certificate pinning Yes Heap spray allocation Ineffective against newer browser-based exploits; newer mitigations provide better protection
For more information, see Mitigate threats by using Windows 10 security features Yes Block low integrity images Yes No Code integrity guard Yes No Disable extension points Yes No Disable Win32k system calls Yes No Don't allow child processes Yes No Import address filtering (IAF) Yes No Validate handle usage Yes No Validate heap integrity Yes No Validate image dependency integrity Yes No

Note

The Advanced ROP mitigations that are available in EMET are superseded by ACG in Windows 10 and Windows 11, which other EMET advanced settings are enabled by default, as part of enabling the anti-ROP mitigations for a process. For more information on how Windows 10 employs existing EMET technology, see the Mitigation threats by using Windows 10 security features.