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All ASR rules honor exclusions.

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Andrea Bichsel (Aquent LLC)
2018-11-27 18:38:42 +00:00
parent da6eb6704e
commit 0bcab775c9
1 changed files with 18 additions and 22 deletions
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windows/security/threat-protection/windows-defender-exploit-guard/customize-attack-surface-reduction.md
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@ -11,7 +11,7 @@ ms.pagetype: security
ms.localizationpriority: medium ms.localizationpriority: medium
author: andreabichsel author: andreabichsel
ms.author: v-anbic ms.author: v-anbic
ms.date: 10/17/2018 ms.date: 11/27/2018
--- ---
# Customize attack surface reduction rules # Customize attack surface reduction rules
@ -28,7 +28,7 @@ You can use Group Policy, PowerShell, and MDM CSPs to configure these settings.
## Exclude files and folders ## Exclude files and folders
You can exclude files and folders from being evaluated by most attack surface reduction rules. This means that even if the file or folder contains malicious behavior as determined by an attack surface reduction rule, the file will not be blocked from running. You can exclude files and folders from being evaluated by all attack surface reduction rules. This means that even if the file or folder contains malicious behavior as determined by an attack surface reduction rule, the file will not be blocked from running.
This could potentially allow unsafe files to run and infect your devices. This could potentially allow unsafe files to run and infect your devices.
@ -41,28 +41,24 @@ You can specify individual files or folders (using folder paths or fully qualifi
Attack surface reduction supports environment variables and wildcards. For information about using wildcards, see [Use wildcards in the file name and folder path or extension exclusion lists](https://docs.microsoft.com/windows/security/threat-protection/windows-defender-antivirus/configure-extension-file-exclusions-windows-defender-antivirus#use-wildcards-in-the-file-name-and-folder-path-or-extension-exclusion-lists). Attack surface reduction supports environment variables and wildcards. For information about using wildcards, see [Use wildcards in the file name and folder path or extension exclusion lists](https://docs.microsoft.com/windows/security/threat-protection/windows-defender-antivirus/configure-extension-file-exclusions-windows-defender-antivirus#use-wildcards-in-the-file-name-and-folder-path-or-extension-exclusion-lists).
Exclusions will only be applied to certain rules. Some rules will not honor the exclusion list. This means that even if you have added a file to the exclusion list, some rules will still evaluate and potentially block that file if the rule determines the file to be unsafe. Exclusions apply to all attack surface reduction rules.
>[!IMPORTANT] Rule description | GUID
>Rules that do not honor the exclusion list will not exclude folders or files added in the exclusion list. All files will be evaluated and potentially blocked by rules that do not honor the exclusion list (indicated with a red X in the following table).
Rule description | Rule honors exclusions | GUID
-|:-:|- -|:-:|-
Block all Office applications from creating child processes | [!include[Check mark yes](images/svg/check-yes.svg)] | D4F940AB-401B-4EFC-AADC-AD5F3C50688A Block all Office applications from creating child processes | D4F940AB-401B-4EFC-AADC-AD5F3C50688A
Block execution of potentially obfuscated scripts | [!include[Check mark yes](images/svg/check-yes.svg)] | 5BEB7EFE-FD9A-4556-801D-275E5FFC04CC Block execution of potentially obfuscated scripts | 5BEB7EFE-FD9A-4556-801D-275E5FFC04CC
Block Win32 API calls from Office macro | [!include[Check mark yes](images/svg/check-yes.svg)] | 92E97FA1-2EDF-4476-BDD6-9DD0B4DDDC7B Block Win32 API calls from Office macro 92E97FA1-2EDF-4476-BDD6-9DD0B4DDDC7B
Block Office applications from creating executable content | [!include[Check mark yes](images/svg/check-yes.svg)] | 3B576869-A4EC-4529-8536-B80A7769E899 Block Office applications from creating executable content | 3B576869-A4EC-4529-8536-B80A7769E899
Block Office applications from injecting code into other processes | [!include[Check mark no](images/svg/check-no.svg)] | 75668C1F-73B5-4CF0-BB93-3ECF5CB7CC84 Block Office applications from injecting code into other processes | 75668C1F-73B5-4CF0-BB93-3ECF5CB7CC84
Block JavaScript or VBScript from launching downloaded executable content | [!include[Check mark no](images/svg/check-no.svg)] | D3E037E1-3EB8-44C8-A917-57927947596D Block JavaScript or VBScript from launching downloaded executable content | D3E037E1-3EB8-44C8-A917-57927947596D
Block executable content from email client and webmail | [!include[Check mark no](images/svg/check-no.svg)] | BE9BA2D9-53EA-4CDC-84E5-9B1EEEE46550 Block executable content from email client and webmail | BE9BA2D9-53EA-4CDC-84E5-9B1EEEE46550
Block executable files from running unless they meet a prevalence, age, or trusted list criteria | [!include[Check mark yes](images/svg/check-yes.svg)] | 01443614-cd74-433a-b99e-2ecdc07bfc25 Block executable files from running unless they meet a prevalence, age, or trusted list criteria | 01443614-cd74-433a-b99e-2ecdc07bfc25
Use advanced protection against ransomware | [!include[Check mark yes](images/svg/check-yes.svg)] | c1db55ab-c21a-4637-bb3f-a12568109d35 Use advanced protection against ransomware | c1db55ab-c21a-4637-bb3f-a12568109d35
Block credential stealing from the Windows local security authority subsystem (lsass.exe) | [!include[Check mark yes](images/svg/check-yes.svg)] | 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2 Block credential stealing from the Windows local security authority subsystem (lsass.exe) | 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2
Block process creations originating from PSExec and WMI commands | [!include[Check mark yes](images/svg/check-yes.svg)] | d1e49aac-8f56-4280-b9ba-993a6d77406c Block process creations originating from PSExec and WMI commands | d1e49aac-8f56-4280-b9ba-993a6d77406c
Block untrusted and unsigned processes that run from USB | [!include[Check mark yes](images/svg/check-yes.svg)] | b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 Block untrusted and unsigned processes that run from USB | b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4
Block Office communication applications from creating child processes | [!include[Check mark yes](images/svg/check-yes.svg)] | 26190899-1602-49e8-8b27-eb1d0a1ce869 Block Office communication applications from creating child processes | 26190899-1602-49e8-8b27-eb1d0a1ce869
Block Adobe Reader from creating child processes | [!include[Check mark yes](images/svg/check-yes.svg)] | 7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c Block Adobe Reader from creating child processes | 7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c
See the [attack surface reduction](attack-surface-reduction-exploit-guard.md) topic for details on each rule. See the [attack surface reduction](attack-surface-reduction-exploit-guard.md) topic for details on each rule.