Toggle Microsoft Defender

Discussion in 'Scripting' started by freddie-o, Feb 2, 2019.

  1. freddie-o

    freddie-o MDL Addicted

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    #1 freddie-o, Feb 2, 2019
    Last edited: Oct 15, 2020
    About:
    This batch script (toggles) enables and/or disables Windows Security Virus & threat protection (aka Microsoft Defender) by...
    • Stopping or starting the “WinDefend” Service.
    • Editing the registry so the “WinDefend” Service doesn't restart unless the script is ran again.
    We need TrustedInstaller privileges to stop or start the “WinDefend” service and edit the registry key.




    Download:
    PowerRun (to run the script with TrustedInstaller privileges)




    Credits:
    @Thomas Dubreuil for helping with the script
    @wtarkan for PowerRun



    Note:

    If you restarted your computer after disabling Microsoft Defender, after you enable it, you have to restart your computer again to start the “WinDefend” Service.




    Toggle script: (10-12-2020)
    NOTE: Put this script and PowerRun in the same folder.

    Code:
    @echo off
    WHOAMI /USER | findstr "S-1-5-18" >nul && (
    goto :toggle
    )
    "%~dp0PowerRun_x64.exe" /SW:0 "%~dpnx0" & exit /b >nul
    
    :toggle
    reg query "HKLM\SYSTEM\CurrentControlSet\Services\WinDefend" /v Start && goto :stop >nul
    
    :start
    reg add "HKLM\SYSTEM\CurrentControlSet\Services\WinDefend" /v Start /t REG_DWORD /d 2 /f >nul
    sc config WinDefend start= auto >nul
    sc start WinDefend >nul
    powershell -nop -c Add-Type -As PresentationFramework;[System.Windows.MessageBox]::Show('Microsoft Defender was enabled successfully!','Enable Microsoft Defender','Ok','Exclamation')
    powershell -nop -c Add-Type -As PresentationFramework;[System.Windows.MessageBox]::Show('If you restarted your computer after disabling Microsoft Defender, you need restart your computer again to start the WinDefend service.','Notice','Ok','Information')&exit
    
    :stop
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WinDefend" /v Start /f >nul
    sc config WinDefend start= disabled >nul
    sc stop WinDefend >nul
    powershell -nop -c Add-Type -As PresentationFramework;[System.Windows.MessageBox]::Show('Microsoft Defender was disabled successfully!','Disable Microsoft Defender','Ok','Exclamation')&exit
    
    





     
  2. freddie-o

    freddie-o MDL Addicted

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    #2 freddie-o, Feb 3, 2019
    Last edited: Sep 18, 2020
    (OP)
    Add "Toggle Microsoft Defender" to the right-click context menu



    Download:

    Bat_To_Exe_Converter (to convert the script to EXE)



    Reg files:

    NOTE: Edit the location (drive letter and folder) of Toggle Microsoft Defender


    For Toggle_Microsoft_Defender.bat
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_CLASSES_ROOT\Directory\Background\shell\Toggle Microsoft Defender]
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,4"
    
    [HKEY_CLASSES_ROOT\Directory\Background\shell\Toggle Microsoft Defender\command]
    @="\"X:\\Location of your folder\\Toggle_Microsoft_Defender.bat\" \"%1\""
    
    

    For Toggle Microsoft Defender.exe
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_CLASSES_ROOT\Directory\Background\shell\Toggle Microsoft Defender]
    "icon"="X:\\Location of your folder\\Toggle Microsoft Defender.exe"
    
    [HKEY_CLASSES_ROOT\Directory\Background\shell\Toggle Microsoft Defender\command]
    @="X:\\Location of your folder\\Toggle Microsoft Defender.exe"
    
    





     
  3. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    #4 Thomas Dubreuil, Feb 4, 2019
    Last edited: Feb 5, 2019
    Maybe written like this... ;)

    Code:
    powershell.exe -Command " '$preferences = Get-MpPreference' ; Start-Process powershell -ArgumentList '-Command \"Set-MpPreference -DisableRealtimeMonitoring (!$preferences.DisableRealtimeMonitoring)\" ' -verb RunAs -WindowStyle Hidden"
    and shortened
    Code:
    powershell -c "'$preferences = Get-MpPreference'; Start-Process powershell -ArgumentList '-c \"Set-MpPreference -DisableRealtimeMonitoring (!$preferences.DisableRealtimeMonitoring)\"' -verb RunAs -Window Hidden"
    ps: just need to copy this in "command" folder (default value data)
    Do you know what is the code to enable back?

    edit: This also works...
    Code:
    powershell -c "Start-Process powershell -ArgumentList '-c \"Set-MpPreference -DisableRealtimeMonitoring $true\"' -verb RunAs -Window Hidden"
    You can also use 1 (or any other number) for $true and 0 for $false

    So, your "final" reg file would be like that:
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle]
    "MUIVerb"="Windows Defender Toggle"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll"
    "Position"="Bottom"
    "SubCommands"=""
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\shell\01_Off]
    "MUIVerb"="Toggle Defender Off"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,5"
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\shell\01_Off\command]
    @="powershell -c \"Start-Process powershell -ArgumentList '-c \\\"Set-MpPreference -DisableRealtimeMonitoring 1\\\"' -verb RunAs -Window Hidden\""
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\shell\02_On]
    "MUIVerb"="Toggle Defender On"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,4"
    "CommandFlags"=dword:00000020
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\shell\02_On\command]
    @="powershell -c \"Start-Process powershell -ArgumentList '-c \\\"Set-MpPreference -DisableRealtimeMonitoring 0\\\"' -verb RunAs -Window Hidden\""
    
    Bonus tip: for a complete "silent" solution (hiding PS window), you can use NSudo, with /U=P to get admin elevation and /ShowWindowMode=Hide.

    Code:
    "YourNSudoFolderPath\NSudoG.exe" -U:P -P:E -ShowWindowMode=Hide powershell /c "Start-Process powershell -ArgumentList '-c \"Set-MpPreference -DisableRealtimeMonitoring 1\"' -Window Hidden"
    ps: For info NSudo accepts both "/" or "-" , and ":" or "=" ( /U= is the same as -U: )
     
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  4. freddie-o

    freddie-o MDL Addicted

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    #5 freddie-o, Feb 5, 2019
    Last edited: Feb 5, 2019
    (OP)

    Thanks. My powershell script works fine from the context menu. It's the Batch script that toggles Defender Control that's not working from the context menu. But your reg file works too--it's another option :)

    P.S The beauty of my toggle scripts is that it automatically enables or disables Defender when you run it.
    Another advantage of converting the .Bat or .Ps1 to .Exe is you have the option to hide the script's window.
     
  5. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    I thought would be nice to have a window with a "done" message for the toggle, because powershell is so slow...
    so made my context menu like that for now...

    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle]
    "MUIVerb"="Windows Defender Toggle"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,4"
    "Position"="Bottom"
    "SubCommands"=""
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\shell\01_Off]
    "MUIVerb"="Toggle Defender Off"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,5"
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\shell\01_Off\command]
    @="\"C:\\Program Files\\System Tools\\System Utilities\\Nsudo\\NSudoG.exe\" -U:P -P:E -ShowWindowMode=Hide powershell /c \"Start-Process powershell -ArgumentList '-c mode 48,2; \\\"Set-MpPreference -DisableRealtimeMonitoring 1\\\"; Write-Host -n -f White Real Time Protection has been` ; Write-Host -n -f R Disabled.; Start-Sleep -s 4'\""
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\shell\02_On]
    "MUIVerb"="Toggle Defender On"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,4"
    "CommandFlags"=dword:00000020
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\shell\02_On\command]
    @="\"C:\\Program Files\\System Tools\\System Utilities\\Nsudo\\NSudoG.exe\" -U:P -P:E -ShowWindowMode=Hide powershell /c \"Start-Process powershell -ArgumentList '-c mode 48,2; \\\"Set-MpPreference -DisableRealtimeMonitoring 0\\\"; Write-Host -n -f White Real Time Protection has been` ; Write-Host -n -f Gree Enabled.; Start-Sleep -s 4'\""
    
    
     
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  6. freddie-o

    freddie-o MDL Addicted

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  7. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    #8 Thomas Dubreuil, Feb 5, 2019
    Last edited: Feb 5, 2019
    ok, you mean in one button, I did it with 2 "subcommands"

    Then it simply is
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle]
    "MUIVerb"="Toggle Defender On or Off"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,4"
    "Position"="Bottom"
    
    [HKEY_CLASSES_ROOT\DesktopBackground\Shell\WinDefenderToggle\Command]
    @="powershell -c \"Start-Process powershell -ArgumentList '-c \\\"$preferences = Get-MpPreference\\\" ; \\\"Set-MpPreference -DisableRealtimeMonitoring (!$preferences.DisableRealtimeMonitoring)\\\"' -verb RunAs -Window Hidden\""
    
    your icon is "native one" or?
     
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  8. freddie-o

    freddie-o MDL Addicted

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    #9 freddie-o, Feb 5, 2019
    Last edited: Feb 5, 2019
    (OP)
    No I added the icon when converting the PS1 to EXE.
    You reg file is better... no need to create a powershell script, convert it then add it to the context menu.
    Still shows a PS window though
     
  9. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    #10 Thomas Dubreuil, Feb 5, 2019
    Last edited: Feb 5, 2019
    you could use NSudo to hide first window...
    like this:
    Code:
    "C:\NSudoFolderPath\NSudoG.exe" -U:P -P:E -ShowWindowMode=Hide powershell -c "Start-Process powershell -ArgumentList '-c \"$preferences = Get-MpPreference\" ; \"Set-MpPreference -DisableRealtimeMonitoring (!$preferences.DisableRealtimeMonitoring)\"' -Window Hidden"
     
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  10. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    I think so...because you need to parse in 2 commands to run it elevated (it won't work if not elevated)
    so either powershell opening powershell or nsudo opening powershell (kind of)
     
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  11. freddie-o

    freddie-o MDL Addicted

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    If you like I can post your reg file in the OP as another option. Crediting you of course. Just need to test it out first
     
  12. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    sure...no problem
     
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  13. freddie-o

    freddie-o MDL Addicted

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    #15 freddie-o, Feb 5, 2019
    Last edited: Feb 5, 2019
    (OP)
    I prefer "Directory\Background" to "DesktopBackground". This way you can still disable Defender from inside Windows Explorer. What do you think?
    Code:
    [HKEY_CLASSES_ROOT\Directory\Background\shell\WinDefenderToggle]
    
     
  14. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    Yes...me too, was just for testing purpose
     
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  15. freddie-o

    freddie-o MDL Addicted

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    #17 freddie-o, Feb 5, 2019
    Last edited: Feb 5, 2019
    (OP)
    Cannot make it work with NSudo. In NSudoG.exe it says...
    "To ensure the best experience, NSudoC does not support context menu."

    But I was able to make it work with PowerRun
     
  16. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    NSudoG not C ;) or NSudo.exe but NSudoG is faster...
     
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  17. Thomas Dubreuil

    Thomas Dubreuil MDL Senior Member

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    #20 Thomas Dubreuil, Feb 5, 2019
    Last edited: Feb 5, 2019
    By the way, we can also take out the first "-c" , because when we don't specify "-File" argument, -Command (abreviated to -c) is always the default.

    We can add another -WindowStyle Hidden too, but still windows will open shell for 1s before executing the "Hidden" command...
    So it would look like this :
    Code:
    powershell -Window Hidden "Start-Process powershell -ArgumentList '-c \"$preferences = Get-MpPreference\";\"Set-MpPreference -DisableRealtimeMonitoring (!$preferences.DisableRealtimeMonitoring)\"' -verb RunAs -Window Hidden"
    
    :)
    and in reg:
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_CLASSES_ROOT\Directory\Background\shell\WinDefenderToggle]
    "MUIVerb"="Toggle Defender On or Off"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,4"
    "Position"="Bottom"
    
    [HKEY_CLASSES_ROOT\Directory\Background\shell\WinDefenderToggle\Command]
    @="powershell -Window Hidden \"Start-Process powershell -ArgumentList '-c \\\"$preferences = Get-MpPreference\\\";\\\"Set-MpPreference -DisableRealtimeMonitoring (!$preferences.DisableRealtimeMonitoring)\\\"' -verb RunAs -Window Hidden\""
    
    I like also the option to show a small "Disabled/Enabled" Window...Because the PS command is quite slow and you not sure if command worked (or if state is disabled or enabled)...
    With NSudo it looks like this:
    Code:
    "C:\YourNSudoFolderPath\NSudoG.exe" -U:P -P:E -ShowWindowMode=Hide powershell "Start-Process powershell -ArgumentList '-c mode 48,2;\"$preferences = Get-MpPreference\";\"Set-MpPreference -DisableRealtimeMonitoring (!$preferences.DisableRealtimeMonitoring)\";Write-Host -n -f White Real Time Protection has been` ;\"if (!$preferences.DisableRealtimeMonitoring -eq $true) {Write-Host -n -f R Disabled.} else {Write-Host -n -f Gree Enabled.}\";Start-Sleep -s 3'"
    
    and in reg, again:
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_CLASSES_ROOT\Directory\Background\shell\WinDefenderToggle]
    "MUIVerb"="Toggle Defender On or Off"
    "Icon"="%ProgramFiles%\\Windows Defender\\EppManifest.dll,4"
    "Position"="Bottom"
    
    [HKEY_CLASSES_ROOT\Directory\Background\shell\WinDefenderToggle\Command]
    @="C:\\YourNSudoFolderPath\\NSudoG.exe\" -U:P -P:E -ShowWindowMode=Hide powershell \"Start-Process powershell -ArgumentList '-c mode 48,2;\\\"$preferences = Get-MpPreference\\\";\\\"Set-MpPreference -DisableRealtimeMonitoring (!$preferences.DisableRealtimeMonitoring)\\\";Write-Host -n -f White Real Time Protection has been` ;\\\"if (!$preferences.DisableRealtimeMonitoring -eq $true) {Write-Host -n -f R Disabled.} else {Write-Host -n -f Gree Enabled.}\\\";Start-Sleep -s 3'\""
    
    ps tested and working, maybe you got wrong path...
    oh I see you edited, so it works ;)
     
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