11 KiB
title, keywords, description, search.product, ms.pagetype, ms.prod, ms.mktglfcycl, ms.sitesec, ms.pagetype, ms.localizationpriority, audience, author, ms.author, ms.date, ms.reviewer, manager
| title | keywords | description | search.product | ms.pagetype | ms.prod | ms.mktglfcycl | ms.sitesec | ms.pagetype | ms.localizationpriority | audience | author | ms.author | ms.date | ms.reviewer | manager |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apply mitigations to help prevent attacks through vulnerabilities | mitigations, vulnerabilities, vulnerability, mitigation, exploit, exploits, emet | Exploit protection in Windows 10 provides advanced configuration over the settings offered in EMET. | eADQiWindows 10XVcnh | security | w10 | manage | library | security | medium | ITPro | levinec | ellevin | 04/02/2019 | dansimp |
Protect devices from exploits
Applies to:
Exploit protection automatically applies a number of exploit mitigation techniques to operating system processes and apps. Exploit protection is supported beginning with Windows 10, version 1709 and Windows Server 2016, version 1803.
Tip
You can visit the Windows Defender Testground website at demo.wd.microsoft.com to confirm the feature is working and see how it works.
Exploit protection works best with Microsoft Defender Advanced Threat Protection - 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 machine, and then use Group Policy to distribute the XML file to multiple devices at once.
When a mitigation is encountered on the machine, a notification will be 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 impact your organization if it were enabled.
Many of the features in the Enhanced Mitigation Experience Toolkit (EMET) have been included in Exploit protection, and you can convert and import existing EMET configuration profiles into Exploit protection. See Comparison between Enhanced Mitigation Experience Toolkit and Exploit protection for more information on how Exploit protection supersedes EMET and what the benefits are when considering moving to exploit protection on Windows 10.
Important
If you are currently using EMET you should be aware that EMET reached end of life on July 31, 2018. You should consider replacing EMET with exploit protection in Windows 10. You can convert an existing EMET configuration file into exploit protection to make the migration easier and keep your existing settings.
Warning
Some security mitigation technologies may 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 Security Center
Microsoft Defender ATP provides detailed reporting into events and blocks as part of its alert investigation scenarios.
You can query Microsoft Defender ATP 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 is an example query:
MiscEvents
| where ActionType startswith 'ExploitGuard' and ActionType !contains 'NetworkProtection'
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 | Do not allow child processes audit |
| Security-Mitigations | 4 | Do not 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) and Windows Server 2016 (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) | [!includeCheck mark yes] | [!includeCheck mark yes] As "Memory Protection Check" |
| Block remote images | [!includeCheck mark yes] | [!includeCheck mark yes] As "Load Library Check" |
| Block untrusted fonts | [!includeCheck mark yes] | [!includeCheck mark yes] |
| Data Execution Prevention (DEP) | [!includeCheck mark yes] | [!includeCheck mark yes] |
| Export address filtering (EAF) | [!includeCheck mark yes] | [!includeCheck mark yes] |
| Force randomization for images (Mandatory ASLR) | [!includeCheck mark yes] | [!includeCheck mark yes] |
| NullPage Security Mitigation | [!includeCheck mark yes] Included natively in Windows 10 See Mitigate threats by using Windows 10 security features for more information |
[!includeCheck mark yes] |
| Randomize memory allocations (Bottom-Up ASLR) | [!includeCheck mark yes] | [!includeCheck mark yes] |
| Simulate execution (SimExec) | [!includeCheck mark yes] | [!includeCheck mark yes] |
| Validate API invocation (CallerCheck) | [!includeCheck mark yes] | [!includeCheck mark yes] |
| Validate exception chains (SEHOP) | [!includeCheck mark yes] | [!includeCheck mark yes] |
| Validate stack integrity (StackPivot) | [!includeCheck mark yes] | [!includeCheck mark yes] |
| Certificate trust (configurable certificate pinning) | Windows 10 provides enterprise certificate pinning | [!includeCheck mark yes] |
| Heap spray allocation | Ineffective against newer browser-based exploits; newer mitigations provide better protection See Mitigate threats by using Windows 10 security features for more information |
[!includeCheck mark yes] |
| Block low integrity images | [!includeCheck mark yes] | [!includeCheck mark no] |
| Code integrity guard | [!includeCheck mark yes] | [!includeCheck mark no] |
| Disable extension points | [!includeCheck mark yes] | [!includeCheck mark no] |
| Disable Win32k system calls | [!includeCheck mark yes] | [!includeCheck mark no] |
| Do not allow child processes | [!includeCheck mark yes] | [!includeCheck mark no] |
| Import address filtering (IAF) | [!includeCheck mark yes] | [!includeCheck mark no] |
| Validate handle usage | [!includeCheck mark yes] | [!includeCheck mark no] |
| Validate heap integrity | [!includeCheck mark yes] | [!includeCheck mark no] |
| Validate image dependency integrity | [!includeCheck mark yes] | [!includeCheck mark no] |
Note
The Advanced ROP mitigations that are available in EMET are superseded by ACG in Windows 10, which other EMET advanced settings are enabled by default, as part of enabling the anti-ROP mitigations for a process.
See the Mitigation threats by using Windows 10 security features for more information on how Windows 10 employs existing EMET technology.