Update attack-surface-reduction-rules-in-windows-10-enterprise-e3.md

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Denise Vangel-MSFT 2020-05-05 11:41:46 -07:00
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**Applies to:**
- Windows 10 Enterprise E5
- Windows 10 Enterprise E3
Attack surface reduction rules help prevent actions and apps that are typically used by exploit-seeking malware to infect machines. This feature area includes the rules, monitoring, reporting, and analytics necessary for deployment that are included in [Microsoft Defender Advanced Threat Protection](../microsoft-defender-atp/microsoft-defender-advanced-threat-protection.md), and require the Windows 10 Enterprise E5 license.
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Attack surface reduction rules are supported on Windows Server 2019 as well as Windows 10 clients.
The limited subset of rules that can be used in Windows 10 Enterprise E3 include:
- Block executable content from email client and webmail
- Block all Office applications from creating child processes
- Block Office applications from creating executable content
- Block Office applications from injecting code into other processes
- Block JavaScript or VBScript from launching downloaded executable content
- Block execution of potentially obfuscated scripts
- Block Win32 API calls from Office macro
- Use advanced protection against ransomware
- Block credential stealing from the Windows local security authority subsystem (lsass.exe)
- Block process creations originating from PSExec and WMI commands
- Block untrusted and unsigned processes that run from USB
|Rule |Windows E3 |Windows E5 |
|--|--|--|
[Block executable content from email client and webmail](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-executable-content-from-email-client-and-webmail) |Yes |Yes |
|[Block all Office applications from creating child processes](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-all-office-applications-from-creating-child-processes) |Yes |Yes |
|[Block Office applications from creating executable content](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-office-applications-from-creating-executable-content) |Yes |Yes |
|[Block Office applications from injecting code into other processes](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-office-applications-from-injecting-code-into-other-processes) |Yes |Yes |
|[Block JavaScript or VBScript from launching downloaded executable content](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-javascript-or-vbscript-from-launching-downloaded-executable-content) |Yes |Yes |
|[Block execution of potentially obfuscated scripts](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-execution-of-potentially-obfuscated-scripts) |Yes |Yes |
|[Block Win32 API calls from Office macros](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-win32-api-calls-from-office-macros) |Yes |Yes |
|[Block executable files from running unless they meet a prevalence, age, or trusted list criterion](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-executable-files-from-running-unless-they-meet-a-prevalence-age-or-trusted-list-criterion) | | |
|[Use advanced protection against ransomware](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#use-advanced-protection-against-ransomware) | | |
|[Block credential stealing from the Windows local security authority subsystem (lsass.exe)](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-credential-stealing-from-the-windows-local-security-authority-subsystem) | | |
|[Block untrusted and unsigned processes that run from USB](https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction#block-untrusted-and-unsigned-processes-that-run-from-usb) | | |
|Block process creations originating from PSExec and WMI commands | | |
| Block untrusted and unsigned processes that run from USB | | |
For more information about these rules, see [Reduce attack surfaces with attack surface reduction rules](attack-surface-reduction.md).