From 771d2852f62a8510e0cd8d7775b39be0d741c2a1 Mon Sep 17 00:00:00 2001 From: Dynakarp <69023488+Dynakarp@users.noreply.github.com> Date: Sat, 27 Mar 2021 21:44:46 -0500 Subject: [PATCH 1/5] Fix invalid file extension --- .../common-exclusion-mistakes-microsoft-defender-antivirus.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md b/windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md index 3108c5ea6b..fa0088f89f 100644 --- a/windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md +++ b/windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md @@ -34,7 +34,7 @@ Do not define exclusions for the folder locations, file extensions, and processe | Folder locations | File extensions | Processes | |:--|:--|:--| -| `%systemdrive%`
`C:`
`C:\`
`C:\*`
`%ProgramFiles%\Java`
`C:\Program Files\Java`
`%ProgramFiles%\Contoso\`
`C:\Program Files\Contoso\`
`%ProgramFiles(x86)%\Contoso\`
`C:\Program Files (x86)\Contoso\`
`C:\Temp`
`C:\Temp\`
`C:\Temp\*`
`C:\Users\`
`C:\Users\*`
`C:\Users\\AppData\Local\Temp\`
`C:\Users\\AppData\LocalLow\Temp\`
`C:\Users\\AppData\Roaming\Temp\`
`%Windir%\Prefetch`
`C:\Windows\Prefetch`
`C:\Windows\Prefetch\`
`C:\Windows\Prefetch\*`
`%Windir%\System32\Spool`
`C:\Windows\System32\Spool`
`C:\Windows\System32\CatRoot2`
`%Windir%\Temp`
`C:\Windows\Temp`
`C:\Windows\Temp\`
`C:\Windows\Temp\*` | `.7zip`
`.bat`
`.bin`
`.cab`
`.cmd`
`.com`
`.cpl`
`.dll`
`.exe`
`.fla`
`.gif`
`.gz`
`.hta`
`.inf`
`.java`
`.jar`
`.job`
`.jpeg`
`.jpg`
`.js`
`.ko`
`.ko.gz`
`.msi`
`.ocx`
`.png`
`.ps1`
`.py`
`.rar`
`.reg`
`.scr`
`.sys`
`.tar`
`.tmp`
`.url`
`.vbe`
`.vbs`
`.wsf`
`.zip` | `AcroRd32.exe`
`bitsadmin.exe`
`excel.exe`
`iexplore.exe`
`java.exe`
`outlook.exe`
`psexec.exe`
`powerpnt.exe`
`powershell.exe`
`schtasks.exe`
`svchost.exe`
`wmic.exe`
`winword.exe`
`wuauclt.exe`
`addinprocess.exe`
`addinprocess32.exe`
`addinutil.exe`
`bash.exe`
`bginfo.exe`[1]
`cdb.exe`
`csi.exe`
`dbghost.exe`
`dbgsvc.exe`
`dnx.exe`
`fsi.exe`
`fsiAnyCpu.exe`
`kd.exe`
`ntkd.exe`
`lxssmanager.dll`
`msbuild.exe`[2]
`mshta.exe`
`ntsd.exe`
`rcsi.exe`
`system.management.automation.dll`
`windbg.exe` | +| `%systemdrive%`
`C:`
`C:\`
`C:\*`
`%ProgramFiles%\Java`
`C:\Program Files\Java`
`%ProgramFiles%\Contoso\`
`C:\Program Files\Contoso\`
`%ProgramFiles(x86)%\Contoso\`
`C:\Program Files (x86)\Contoso\`
`C:\Temp`
`C:\Temp\`
`C:\Temp\*`
`C:\Users\`
`C:\Users\*`
`C:\Users\\AppData\Local\Temp\`
`C:\Users\\AppData\LocalLow\Temp\`
`C:\Users\\AppData\Roaming\Temp\`
`%Windir%\Prefetch`
`C:\Windows\Prefetch`
`C:\Windows\Prefetch\`
`C:\Windows\Prefetch\*`
`%Windir%\System32\Spool`
`C:\Windows\System32\Spool`
`C:\Windows\System32\CatRoot2`
`%Windir%\Temp`
`C:\Windows\Temp`
`C:\Windows\Temp\`
`C:\Windows\Temp\*` | `.7z`
`.bat`
`.bin`
`.cab`
`.cmd`
`.com`
`.cpl`
`.dll`
`.exe`
`.fla`
`.gif`
`.gz`
`.hta`
`.inf`
`.java`
`.jar`
`.job`
`.jpeg`
`.jpg`
`.js`
`.ko`
`.ko.gz`
`.msi`
`.ocx`
`.png`
`.ps1`
`.py`
`.rar`
`.reg`
`.scr`
`.sys`
`.tar`
`.tmp`
`.url`
`.vbe`
`.vbs`
`.wsf`
`.zip` | `AcroRd32.exe`
`bitsadmin.exe`
`excel.exe`
`iexplore.exe`
`java.exe`
`outlook.exe`
`psexec.exe`
`powerpnt.exe`
`powershell.exe`
`schtasks.exe`
`svchost.exe`
`wmic.exe`
`winword.exe`
`wuauclt.exe`
`addinprocess.exe`
`addinprocess32.exe`
`addinutil.exe`
`bash.exe`
`bginfo.exe`[1]
`cdb.exe`
`csi.exe`
`dbghost.exe`
`dbgsvc.exe`
`dnx.exe`
`fsi.exe`
`fsiAnyCpu.exe`
`kd.exe`
`ntkd.exe`
`lxssmanager.dll`
`msbuild.exe`[2]
`mshta.exe`
`ntsd.exe`
`rcsi.exe`
`system.management.automation.dll`
`windbg.exe` | >[!NOTE] > You can chose to exclude file types, such as `.gif`, `.jpg`, `.jpeg`, or `.png` if your environment has a modern, up-to-date software with a strict update policy to handle any vulnerabilities. From e39d70cc5492f89d1f1bb73b077ce36b20e0903a Mon Sep 17 00:00:00 2001 From: MaratMussabekov <48041687+MaratMussabekov@users.noreply.github.com> Date: Sun, 28 Mar 2021 09:28:33 +0500 Subject: [PATCH 2/5] Update configure-extension-file-exclusions-microsoft-defender-antivirus.md --- ...xtension-file-exclusions-microsoft-defender-antivirus.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md b/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md index 72b9e21580..490e1e1e06 100644 --- a/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md +++ b/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md @@ -183,8 +183,8 @@ The following table describes how the wildcards can be used and provides some ex |Wildcard |Examples | |:---------|:---------| -|`*` (asterisk)

In **file name and file extension inclusions**, the asterisk replaces any number of characters, and only applies to files in the last folder defined in the argument.

In **folder exclusions**, the asterisk replaces a single folder. Use multiple `*` with folder slashes `\` to indicate multiple nested folders. After matching the number of wild carded and named folders, all subfolders are also included. | `C:\MyData\*.txt` would include `C:\MyData\notes.txt`

`C:\somepath\*\Data` would include any file in `C:\somepath\Archives\Data and its subfolders` and `C:\somepath\Authorized\Data and its subfolders`

`C:\Serv\*\*\Backup` would include any file in `C:\Serv\Primary\Denied\Backup and its subfolders` and `C:\Serv\Secondary\Allowed\Backup and its subfolders` | -|`?` (question mark)

In **file name and file extension inclusions**, the question mark replaces a single character, and only applies to files in the last folder defined in the argument.

In **folder exclusions**, the question mark replaces a single character in a folder name. After matching the number of wild carded and named folders, all subfolders are also included. |`C:\MyData\my?` would include `C:\MyData\my1.zip`

`C:\somepath\?\Data` would include any file in `C:\somepath\P\Data` and its subfolders

`C:\somepath\test0?\Data` would include any file in `C:\somepath\test01\Data` and its subfolders | +|`*` (asterisk)

In **file name and file extension inclusions**, the asterisk replaces any number of characters, and only applies to files in the last folder defined in the argument.

In **folder exclusions**, the asterisk replaces a single folder. Use multiple `*` with folder slashes `\` to indicate multiple nested folders. After matching the number of wild carded and named folders, all subfolders are also included. | `C:\MyData\*.txt` would include `C:\MyData\notes.txt`

`C:\somepath\*\Data` would include any file in `C:\somepath\Archives\Data` and its subfolders and `C:\somepath\Authorized\Data` and its subfolders

`C:\Serv\*\*\Backup` would include any file in `C:\Serv\Primary\Denied\Backup` and its subfolders and `C:\Serv\Secondary\Allowed\Backup` and its subfolders | +|`?` (question mark)

In **file name and file extension inclusions**, the question mark replaces a single character, and only applies to files in the last folder defined in the argument.

In **folder exclusions**, the question mark replaces a single character in a folder name. After matching the number of wild carded and named folders, all subfolders are also included. |`C:\MyData\my?.zip` would include `C:\MyData\my1.zip`

`C:\somepath\?\Data` would include any file in `C:\somepath\P\Data` and its subfolders

`C:\somepath\test0?\Data` would include any file in `C:\somepath\test01\Data` and its subfolders | |Environment variables

The defined variable is populated as a path when the exclusion is evaluated. |`%ALLUSERSPROFILE%\CustomLogFiles` would include `C:\ProgramData\CustomLogFiles\Folder1\file1.txt` | @@ -360,4 +360,4 @@ You can also copy the string into a blank text file and attempt to save it with - [Configure and validate exclusions in Microsoft Defender Antivirus scans](configure-exclusions-microsoft-defender-antivirus.md) - [Configure and validate exclusions for files opened by processes](configure-process-opened-file-exclusions-microsoft-defender-antivirus.md) - [Configure Microsoft Defender Antivirus exclusions on Windows Server](configure-server-exclusions-microsoft-defender-antivirus.md) -- [Common mistakes to avoid when defining exclusions](common-exclusion-mistakes-microsoft-defender-antivirus.md) \ No newline at end of file +- [Common mistakes to avoid when defining exclusions](common-exclusion-mistakes-microsoft-defender-antivirus.md) From 7e9215ca6b8910289e7436ad40962879a75f6666 Mon Sep 17 00:00:00 2001 From: Dynakarp <69023488+Dynakarp@users.noreply.github.com> Date: Sun, 28 Mar 2021 09:02:48 -0500 Subject: [PATCH 3/5] Update windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md Correct a typo. Co-authored-by: Trond B. Krokli <38162891+illfated@users.noreply.github.com> --- .../common-exclusion-mistakes-microsoft-defender-antivirus.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md b/windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md index fa0088f89f..3ce1ffde39 100644 --- a/windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md +++ b/windows/security/threat-protection/microsoft-defender-antivirus/common-exclusion-mistakes-microsoft-defender-antivirus.md @@ -36,8 +36,8 @@ Do not define exclusions for the folder locations, file extensions, and processe |:--|:--|:--| | `%systemdrive%`
`C:`
`C:\`
`C:\*`
`%ProgramFiles%\Java`
`C:\Program Files\Java`
`%ProgramFiles%\Contoso\`
`C:\Program Files\Contoso\`
`%ProgramFiles(x86)%\Contoso\`
`C:\Program Files (x86)\Contoso\`
`C:\Temp`
`C:\Temp\`
`C:\Temp\*`
`C:\Users\`
`C:\Users\*`
`C:\Users\\AppData\Local\Temp\`
`C:\Users\\AppData\LocalLow\Temp\`
`C:\Users\\AppData\Roaming\Temp\`
`%Windir%\Prefetch`
`C:\Windows\Prefetch`
`C:\Windows\Prefetch\`
`C:\Windows\Prefetch\*`
`%Windir%\System32\Spool`
`C:\Windows\System32\Spool`
`C:\Windows\System32\CatRoot2`
`%Windir%\Temp`
`C:\Windows\Temp`
`C:\Windows\Temp\`
`C:\Windows\Temp\*` | `.7z`
`.bat`
`.bin`
`.cab`
`.cmd`
`.com`
`.cpl`
`.dll`
`.exe`
`.fla`
`.gif`
`.gz`
`.hta`
`.inf`
`.java`
`.jar`
`.job`
`.jpeg`
`.jpg`
`.js`
`.ko`
`.ko.gz`
`.msi`
`.ocx`
`.png`
`.ps1`
`.py`
`.rar`
`.reg`
`.scr`
`.sys`
`.tar`
`.tmp`
`.url`
`.vbe`
`.vbs`
`.wsf`
`.zip` | `AcroRd32.exe`
`bitsadmin.exe`
`excel.exe`
`iexplore.exe`
`java.exe`
`outlook.exe`
`psexec.exe`
`powerpnt.exe`
`powershell.exe`
`schtasks.exe`
`svchost.exe`
`wmic.exe`
`winword.exe`
`wuauclt.exe`
`addinprocess.exe`
`addinprocess32.exe`
`addinutil.exe`
`bash.exe`
`bginfo.exe`[1]
`cdb.exe`
`csi.exe`
`dbghost.exe`
`dbgsvc.exe`
`dnx.exe`
`fsi.exe`
`fsiAnyCpu.exe`
`kd.exe`
`ntkd.exe`
`lxssmanager.dll`
`msbuild.exe`[2]
`mshta.exe`
`ntsd.exe`
`rcsi.exe`
`system.management.automation.dll`
`windbg.exe` | ->[!NOTE] -> You can chose to exclude file types, such as `.gif`, `.jpg`, `.jpeg`, or `.png` if your environment has a modern, up-to-date software with a strict update policy to handle any vulnerabilities. +> [!NOTE] +> You can choose to exclude file types, such as `.gif`, `.jpg`, `.jpeg`, or `.png` if your environment has a modern, up-to-date software with a strict update policy to handle any vulnerabilities. ## Using just the file name in the exclusion list From b729926aa2234f0122a832271a154a4d48082719 Mon Sep 17 00:00:00 2001 From: Denise Vangel-MSFT Date: Mon, 29 Mar 2021 13:28:46 -0700 Subject: [PATCH 4/5] Update configure-extension-file-exclusions-microsoft-defender-antivirus.md --- ...-extension-file-exclusions-microsoft-defender-antivirus.md | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md b/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md index 490e1e1e06..af3e8d59d7 100644 --- a/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md +++ b/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md @@ -99,8 +99,6 @@ See [How to create and deploy antimalware policies: Exclusion settings](/configm 5. Choose **OK**. - ![The Group Policy setting for file and folder exclusions](images/defender/wdav-path-exclusions.png) - 6. Open the **Extension Exclusions** setting for editing and add your exclusions. - Set the option to **Enabled**. @@ -139,7 +137,7 @@ The following are allowed as the ``: > [!IMPORTANT] > If you have created a list, either with `Set-MpPreference` or `Add-MpPreference`, using the `Set-MpPreference` cmdlet again will overwrite the existing list. -For example, the following code snippet would cause Microsoft Defender AV scans to exclude any file with the `.test` file extension: +For example, the following code snippet would cause Microsoft Defender Antivirus scans to exclude any file with the `.test` file extension: ```PowerShell Add-MpPreference -ExclusionExtension ".test" From 61d43b2f2686b1f4f6654988c9ffe0d2af0a7967 Mon Sep 17 00:00:00 2001 From: Denise Vangel-MSFT Date: Mon, 29 Mar 2021 13:33:16 -0700 Subject: [PATCH 5/5] Update configure-extension-file-exclusions-microsoft-defender-antivirus.md --- ...ension-file-exclusions-microsoft-defender-antivirus.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md b/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md index af3e8d59d7..e73616fdc6 100644 --- a/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md +++ b/windows/security/threat-protection/microsoft-defender-antivirus/configure-extension-file-exclusions-microsoft-defender-antivirus.md @@ -40,7 +40,7 @@ This article describes how to configure exclusion lists for the files and folde | Exclusion | Examples | Exclusion list | |:---|:---|:---| -|Any file with a specific extension | All files with the specified extension, anywhere on the machine.
Valid syntax: `.test` and `test` | Extension exclusions | +|Any file with a specific extension | All files with the specified extension, anywhere on the machine.

Valid syntax: `.test` and `test` | Extension exclusions | |Any file under a specific folder | All files under the `c:\test\sample` folder | File and folder exclusions | | A specific file in a specific folder | The file `c:\sample\sample.test` only | File and folder exclusions | | A specific process | The executable file `c:\test\process.exe` | File and folder exclusions | @@ -181,9 +181,9 @@ The following table describes how the wildcards can be used and provides some ex |Wildcard |Examples | |:---------|:---------| -|`*` (asterisk)

In **file name and file extension inclusions**, the asterisk replaces any number of characters, and only applies to files in the last folder defined in the argument.

In **folder exclusions**, the asterisk replaces a single folder. Use multiple `*` with folder slashes `\` to indicate multiple nested folders. After matching the number of wild carded and named folders, all subfolders are also included. | `C:\MyData\*.txt` would include `C:\MyData\notes.txt`

`C:\somepath\*\Data` would include any file in `C:\somepath\Archives\Data` and its subfolders and `C:\somepath\Authorized\Data` and its subfolders

`C:\Serv\*\*\Backup` would include any file in `C:\Serv\Primary\Denied\Backup` and its subfolders and `C:\Serv\Secondary\Allowed\Backup` and its subfolders | -|`?` (question mark)

In **file name and file extension inclusions**, the question mark replaces a single character, and only applies to files in the last folder defined in the argument.

In **folder exclusions**, the question mark replaces a single character in a folder name. After matching the number of wild carded and named folders, all subfolders are also included. |`C:\MyData\my?.zip` would include `C:\MyData\my1.zip`

`C:\somepath\?\Data` would include any file in `C:\somepath\P\Data` and its subfolders

`C:\somepath\test0?\Data` would include any file in `C:\somepath\test01\Data` and its subfolders | -|Environment variables

The defined variable is populated as a path when the exclusion is evaluated. |`%ALLUSERSPROFILE%\CustomLogFiles` would include `C:\ProgramData\CustomLogFiles\Folder1\file1.txt` | +|`*` (asterisk)

In **file name and file extension inclusions**, the asterisk replaces any number of characters, and only applies to files in the last folder defined in the argument.

In **folder exclusions**, the asterisk replaces a single folder. Use multiple `*` with folder slashes `\` to indicate multiple nested folders. After matching the number of wild carded and named folders, all subfolders are also included. | `C:\MyData\*.txt` includes `C:\MyData\notes.txt`

`C:\somepath\*\Data` includes any file in `C:\somepath\Archives\Data` and its subfolders, and `C:\somepath\Authorized\Data` and its subfolders

`C:\Serv\*\*\Backup` includes any file in `C:\Serv\Primary\Denied\Backup` and its subfolders and `C:\Serv\Secondary\Allowed\Backup` and its subfolders | +|`?` (question mark)

In **file name and file extension inclusions**, the question mark replaces a single character, and only applies to files in the last folder defined in the argument.

In **folder exclusions**, the question mark replaces a single character in a folder name. After matching the number of wild carded and named folders, all subfolders are also included. |`C:\MyData\my?.zip` includes `C:\MyData\my1.zip`

`C:\somepath\?\Data` includes any file in `C:\somepath\P\Data` and its subfolders

`C:\somepath\test0?\Data` would include any file in `C:\somepath\test01\Data` and its subfolders | +|Environment variables

The defined variable is populated as a path when the exclusion is evaluated. |`%ALLUSERSPROFILE%\CustomLogFiles` would include `C:\ProgramData\CustomLogFiles\Folder1\file1.txt` | > [!IMPORTANT]