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Merge pull request #3292 from MicrosoftDocs/asr-fix

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Update attack-surface-reduction.md
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Denise Vangel-MSFT 2020-07-14 12:13:52 -07:00 committed by GitHub
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windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction.md
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@ -31,7 +31,7 @@ Attack surface reduction rules target software behaviors that are often abused b
- Running obfuscated or otherwise suspicious scripts
- Performing behaviors that apps don't usually initiate during normal day-to-day work
These behaviors are sometimes seen in legitimate applications; however, they are considered risky because they are commonly abused by malware. Attack surface reduction rules can constrain these kinds of risky behaviors and help keep your organization safe.
Such behaviors are sometimes seen in legitimate applications; however, they are considered risky because they are commonly abused by malware. Attack surface reduction rules can constrain these kinds of risky behaviors and help keep your organization safe.
Use [audit mode](audit-windows-defender.md) to evaluate how attack surface reduction rules would impact your organization if they were enabled. It's best to run all rules in audit mode first so you can understand their impact on your line-of-business applications. Many line-of-business applications are written with limited security concerns, and they may perform tasks in ways that seem similar to malware. By monitoring audit data and [adding exclusions](enable-attack-surface-reduction.md#exclude-files-and-folders-from-asr-rules) for necessary applications, you can deploy attack surface reduction rules without impacting productivity.
@ -96,7 +96,7 @@ The following sections describe each of the 15 attack surface reduction rules. T
|[Block all Office applications from creating child processes](#block-all-office-applications-from-creating-child-processes) | `D4F940AB-401B-4EFC-AADC-AD5F3C50688A` | Supported | [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709) (RS3, build 16299) or greater |
|[Block Office applications from creating executable content](#block-office-applications-from-creating-executable-content) | `3B576869-A4EC-4529-8536-B80A7769E899` | Supported | [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709) (RS3, build 16299) or greater |
|[Block Office applications from injecting code into other processes](#block-office-applications-from-injecting-code-into-other-processes) | `75668C1F-73B5-4CF0-BB93-3ECF5CB7CC84` | Supported | [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709) (RS3, build 16299) or greater |
|[Block JavaScript or VBScript from launching downloaded executable content](#block-javascript-or-vbscript-from-launching-downloaded-executable-content) | `D3E037E1-3EB8-44C8-A917-57927947596D` | Not supported | [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709) (RS3, build 16299) or greater |
|[Block JavaScript or VBScript from launching downloaded executable content](#block-javascript-or-vbscript-from-launching-downloaded-executable-content) | `D3E037E1-3EB8-44C8-A917-57927947596D` | Supported | [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709) (RS3, build 16299) or greater |
|[Block execution of potentially obfuscated scripts](#block-execution-of-potentially-obfuscated-scripts) | `5BEB7EFE-FD9A-4556-801D-275E5FFC04CC` | Supported | [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709) (RS3, build 16299) or greater |
|[Block Win32 API calls from Office macros](#block-win32-api-calls-from-office-macros) | `92E97FA1-2EDF-4476-BDD6-9DD0B4DDDC7B` | Supported | [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709) (RS3, build 16299) or greater |
|[Block executable files from running unless they meet a prevalence, age, or trusted list criterion](#block-executable-files-from-running-unless-they-meet-a-prevalence-age-or-trusted-list-criterion) | `01443614-cd74-433a-b99e-2ecdc07bfc25` | Supported | [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709) (RS3, build 16299) or greater |
@ -191,9 +191,6 @@ This rule prevents scripts from launching potentially malicious downloaded conte
Although not common, line-of-business applications sometimes use scripts to download and launch installers.
> [!IMPORTANT]
> File and folder exclusions don't apply to this attack surface reduction rule.
This rule was introduced in:
- [Windows 10, version 1709](https://docs.microsoft.com/windows/whats-new/whats-new-windows-10-version-1709)
- [Windows Server, version 1809](https://docs.microsoft.com/windows-server/get-started/whats-new-in-windows-server-1809)
@ -385,6 +382,9 @@ GUID: `7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c`
This rule prevents malware from abusing WMI to attain persistence on a device.
> [!IMPORTANT]
> File and folder exclusions don't apply to this attack surface reduction rule.
Fileless threats employ various tactics to stay hidden, to avoid being seen in the file system, and to gain periodic execution control. Some threats can abuse the WMI repository and event model to stay hidden.
This rule was introduced in: