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https://github.com/AveYo/LeanAndMean

batch powershell reg-own runas runasti toggle-defender trustedinstaller

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RunAsTI - TrustedInstaller access rights while keeping HKCU loaded  

---  

*supports Windows 7 - Windows 10 - Windows 11 release - Windows 11 dev*  



#### [RunAsTI.reg](RunAsTI.reg) context menu for folders, exe, msc, bat, cmd, reg - updated 2023.07.06  

```reg

Windows Registry Editor Version 5.00



; Context Menu entries to use RunAsTI - lean and mean snippet by AveYo, 2018-2023

; [FEATURES]

; - innovative HKCU load, no need for reg load / unload ping-pong; programs get the user profile

; - sets ownership privileges, high priority, and explorer support; get System if TI unavailable

; - accepts special characters in paths for which default run as administrator fails

; - show on the new 11 contextmenu via whitelisted id; plenty other available, fuck needing an app!

; 2022.04.07: PowerShell / Terminal here (if installed, use Terminal as TI, else use PowerShell as TI)

; 2023.07.06: fix arguments with quotes



[-HKEY_CLASSES_ROOT\RunAsTI]

[-HKEY_CLASSES_ROOT\batfile\shell\setdesktopwallpaper]

[-HKEY_CLASSES_ROOT\cmdfile\shell\setdesktopwallpaper]

[-HKEY_CLASSES_ROOT\exefile\shell\setdesktopwallpaper]

[-HKEY_CLASSES_ROOT\mscfile\shell\setdesktopwallpaper]

[-HKEY_CLASSES_ROOT\Microsoft.PowerShellScript.1\shell\setdesktopwallpaper]

[-HKEY_CLASSES_ROOT\regfile\shell\setdesktopwallpaper]

[-HKEY_CLASSES_ROOT\Folder\shell\setdesktopwallpaper]

[-HKEY_CLASSES_ROOT\Directory\background\shell\extract]

; To remove entries, copy paste above into undo_RunAsTI.reg file, then import it



; RunAsTI on .bat

[HKEY_CLASSES_ROOT\batfile\shell\setdesktopwallpaper]

"MUIVerb"="Run as trustedinstaller"

"HasLUAShield"=""

"Icon"="powershell.exe,0"

[HKEY_CLASSES_ROOT\batfile\shell\setdesktopwallpaper\command]

@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -win 1 -nop -c iex((10..40|%%{(gp 'Registry::HKCR\\RunAsTI' $_ -ea 0).$_})-join[char]10); # --%% \"%L\""



; RunAsTI on .cmd

[HKEY_CLASSES_ROOT\cmdfile\shell\setdesktopwallpaper]

"MUIVerb"="Run as trustedinstaller"

"HasLUAShield"=""

"Icon"="powershell.exe,0"

[HKEY_CLASSES_ROOT\cmdfile\shell\setdesktopwallpaper\command]

@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -win 1 -nop -c iex((10..40|%%{(gp 'Registry::HKCR\\RunAsTI' $_ -ea 0).$_})-join[char]10); # --%% \"%L\""



; RunAsTI on .exe

[HKEY_CLASSES_ROOT\exefile\shell\setdesktopwallpaper]

"MUIVerb"="Run as trustedinstaller"

"HasLUAShield"=""

"Icon"="powershell.exe,0"

[HKEY_CLASSES_ROOT\exefile\shell\setdesktopwallpaper\command]

@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -win 1 -nop -c iex((10..40|%%{(gp 'Registry::HKCR\\RunAsTI' $_ -ea 0).$_})-join[char]10); # --%% \"%L\""



; RunAsTI on .msc

[HKEY_CLASSES_ROOT\mscfile\shell\setdesktopwallpaper]

"MUIVerb"="Run as trustedinstaller"

"HasLUAShield"=""

"Icon"="powershell.exe,0"

[HKEY_CLASSES_ROOT\mscfile\shell\setdesktopwallpaper\command]

@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -win 1 -nop -c iex((10..40|%%{(gp 'Registry::HKCR\\RunAsTI' $_ -ea 0).$_})-join[char]10); # --%% \"%L\""



; RunAsTI on .ps1

[HKEY_CLASSES_ROOT\Microsoft.PowerShellScript.1\shell\setdesktopwallpaper]

"MUIVerb"="Run as trustedinstaller"

"HasLUAShield"=""

"Icon"="powershell.exe,0"

[HKEY_CLASSES_ROOT\Microsoft.PowerShellScript.1\shell\setdesktopwallpaper\command]

@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -win 1 -nop -c iex((10..40|%%{(gp 'Registry::HKCR\\RunAsTI' $_ -ea 0).$_})-join[char]10); # --%% powershell -nop -c iex((gc -lit '%L')-join[char]10)"



; RunAsTI on .reg

[HKEY_CLASSES_ROOT\regfile\shell\setdesktopwallpaper]

"MUIVerb"="Import as trustedinstaller"

"HasLUAShield"=""

"Icon"="powershell.exe,0"

[HKEY_CLASSES_ROOT\regfile\shell\setdesktopwallpaper\command]

@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -win 1 -nop -c iex((10..40|%%{(gp 'Registry::HKCR\\RunAsTI' $_ -ea 0).$_})-join[char]10); # --%% regedit /s \"%L\""



; RunAsTI on Folder

[HKEY_CLASSES_ROOT\Folder\shell\setdesktopwallpaper]

"MuiVerb"="Open as trustedinstaller"

"HasLUAShield"=""

"Icon"="powershell.exe,0"

"AppliesTo"="NOT System.ParsingName:=\"::{645FF040-5081-101B-9F08-00AA002F954E}\""

[HKEY_CLASSES_ROOT\Folder\shell\setdesktopwallpaper\command]

@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -win 1 -nop -c iex((10..40|%%{(gp 'Registry::HKCR\\RunAsTI' $_ -ea 0).$_})-join[char]10); # --%% \"%L\""



; Open Terminal or Powershell as trustedinstaller here - can spawn another terminal with: cmd /c $env:wt

[HKEY_CLASSES_ROOT\Directory\background\shell\extract]

"MuiVerb"="PowerShell / Terminal"

"HasLUAShield"=""

"NoWorkingDirectory"=""

"Position"=-

"Position"="Middle"

"Icon"="powershell.exe,0"

[HKEY_CLASSES_ROOT\Directory\background\shell\extract\command]

@="C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe -win 1 -nop -c iex((10..40|%%{(gp 'Registry::HKCR\\RunAsTI' $_ -ea 0).$_})-join[char]10); # --%% cmd /c pushd \"%V\" & start \"RunAsTI\" %%wt%%"



; RunAsTI function

[HKEY_CLASSES_ROOT\RunAsTI]

"10"="function RunAsTI ($cmd,$arg) { $id='RunAsTI'; $key=\"Registry::HKU\\$(((whoami /user)-split' ')[-1])\\Volatile Environment\"; $code=@'"

"11"=" $I=[int32]; $M=$I.module.gettype(\"System.Runtime.Interop`Services.Mar`shal\"); $P=$I.module.gettype(\"System.Int`Ptr\"); $S=[string]"

"12"=" $D=@(); $T=@(); $DM=[AppDomain]::CurrentDomain.\"DefineDynami`cAssembly\"(1,1).\"DefineDynami`cModule\"(1); $Z=[uintptr]::size "

"13"=" 0..5|% {$D += $DM.\"Defin`eType\"(\"AveYo_$_\",1179913,[ValueType])}; $D += [uintptr]; 4..6|% {$D += $D[$_].\"MakeByR`efType\"()}"

"14"=" $F='kernel','advapi','advapi', ($S,$S,$I,$I,$I,$I,$I,$S,$D[7],$D[8]), ([uintptr],$S,$I,$I,$D[9]),([uintptr],$S,$I,$I,[byte[]],$I)"

"15"=" 0..2|% {$9=$D[0].\"DefinePInvok`eMethod\"(('CreateProcess','RegOpenKeyEx','RegSetValueEx')[$_],$F[$_]+'32',8214,1,$S,$F[$_+3],1,4)}"

"16"=" $DF=($P,$I,$P),($I,$I,$I,$I,$P,$D[1]),($I,$S,$S,$S,$I,$I,$I,$I,$I,$I,$I,$I,[int16],[int16],$P,$P,$P,$P),($D[3],$P),($P,$P,$I,$I)"

"17"=" 1..5|% {$k=$_; $n=1; $DF[$_-1]|% {$9=$D[$k].\"Defin`eField\"('f' + $n++, $_, 6)}}; 0..5|% {$T += $D[$_].\"Creat`eType\"()}"

"18"=" 0..5|% {nv \"A$_\" ([Activator]::CreateInstance($T[$_])) -fo}; function F ($1,$2) {$T[0].\"G`etMethod\"($1).invoke(0,$2)}"

"19"=" $TI=(whoami /groups)-like'*1-16-16384*'; $As=0; if(!$cmd) {$cmd='control';$arg='admintools'}; if ($cmd-eq'This PC'){$cmd='file:'}"

"20"=" if (!$TI) {'TrustedInstaller','lsass','winlogon'|% {if (!$As) {$9=sc.exe start $_; $As=@(get-process -name $_ -ea 0|% {$_})[0]}}"

"21"=" function M ($1,$2,$3) {$M.\"G`etMethod\"($1,[type[]]$2).invoke(0,$3)}; $H=@(); $Z,(4*$Z+16)|% {$H += M \"AllocHG`lobal\" $I $_}"

"22"=" M \"WriteInt`Ptr\" ($P,$P) ($H[0],$As.Handle); $A1.f1=131072; $A1.f2=$Z; $A1.f3=$H[0]; $A2.f1=1; $A2.f2=1; $A2.f3=1; $A2.f4=1"

"23"=" $A2.f6=$A1; $A3.f1=10*$Z+32; $A4.f1=$A3; $A4.f2=$H[1]; M \"StructureTo`Ptr\" ($D[2],$P,[boolean]) (($A2 -as $D[2]),$A4.f2,$false)"

"24"=" $Run=@($null, \"powershell -win 1 -nop -c iex `$env:R; # $id\", 0, 0, 0, 0x0E080600, 0, $null, ($A4 -as $T[4]), ($A5 -as $T[5]))"

"25"=" F 'CreateProcess' $Run; return}; $env:R=''; rp $key $id -force; $priv=[diagnostics.process].\"GetM`ember\"('SetPrivilege',42)[0]"

"26"=" 'SeSecurityPrivilege','SeTakeOwnershipPrivilege','SeBackupPrivilege','SeRestorePrivilege' |% {$priv.Invoke($null, @(\"$_\",2))}"

"27"=" $HKU=[uintptr][uint32]2147483651; $NT='S-1-5-18'; $reg=($HKU,$NT,8,2,($HKU -as $D[9])); F 'RegOpenKeyEx' $reg; $LNK=$reg[4]"

"28"=" function L ($1,$2,$3) {sp 'Registry::HKCR\\AppID\\{CDCBCFCA-3CDC-436f-A4E2-0E02075250C2}' 'RunAs' $3 -force -ea 0"

"29"="  $b=[Text.Encoding]::Unicode.GetBytes(\"\\Registry\\User\\$1\"); F 'RegSetValueEx' @($2,'SymbolicLinkValue',0,6,[byte[]]$b,$b.Length)}"

"30"=" function Q {[int](gwmi win32_process -filter 'name=\"explorer.exe\"'|?{$_.getownersid().sid-eq$NT}|select -last 1).ProcessId}"

"31"=" $env:wt='powershell'; dir \"$env:ProgramFiles\\WindowsApps\\Microsoft.WindowsTerminal*\\wt.exe\" -rec|% {$env:wt='\"'+$_.FullName+'\" \"-d .\"'}"

"32"=" $11bug=($((gwmi Win32_OperatingSystem).BuildNumber)-eq'22000')-AND(($cmd-eq'file:')-OR(test-path -lit $cmd -PathType Container))"

"33"=" if ($11bug) {'System.Windows.Forms','Microsoft.VisualBasic' |% {$9=[Reflection.Assembly]::LoadWithPartialName(\"'$_\")}}"

"34"=" if ($11bug) {$path='^(l)'+$($cmd -replace '([\\+\\^\\%\\~\\(\\)\\[\\]])','{$1}')+'{ENTER}'; $cmd='control.exe'; $arg='admintools'}"

"35"=" L ($key-split'\\\\')[1] $LNK ''; $R=[diagnostics.process]::start($cmd,$arg); if ($R) {$R.PriorityClass='High'; $R.WaitForExit()}"

"36"=" if ($11bug) {$w=0; do {if($w-gt40){break}; sleep -mi 250;$w++} until (Q); [Microsoft.VisualBasic.Interaction]::AppActivate($(Q))}"

"37"=" if ($11bug) {[Windows.Forms.SendKeys]::SendWait($path)}; do {sleep 7} while(Q); L '.Default' $LNK 'Interactive User'"

"38"="'@; $V='';'cmd','arg','id','key'|%{$V+=\"`n`$$_='$($(gv $_ -val)-replace\"'\",\"''\")';\"}; sp $key $id $($V,$code) -type 7 -force -ea 0"

"39"=" start powershell -args \"-win 1 -nop -c `n$V `$env:R=(gi `$key -ea 0).getvalue(`$id)-join''; iex `$env:R\" -verb runas"

"40"="}; $A=,([environment]::commandline-split'-[-]%+ ?',2)[1]-split'\"([^\"]+)\"|([^ ]+)',2|%{$_.Trim(' \"')}; RunAsTI $A[1] $A[2]; # AveYo, 2023.07.06"

;



```

*2022.01.16: added `Open Powershell as trustedinstaller` entry on directory background*  

*2022.01.28: workaround for 11 release (22000) delaying explorer; fix 7 args*

*2022.04.07: PowerShell / Terminal (if installed, use Terminal as TI, else use PowerShell as TI)*  

*2023.07.06: fix arguments with quotes*  



#### [RunAsTI.bat](RunAsTI.bat) with ***Send to*** right-click menu entry to launch files and folders as TI - updated 2023.07.06  

```bat

@echo off& title RunAsTI - lean and mean snippet by AveYo, 2018-2022

goto :nfo

    [FEATURES]

    - innovative HKCU load, no need for reg load / unload ping-pong; programs get the user profile

    - sets ownership privileges, high priority, and explorer support; get System if TI unavailable

    - accepts special characters in paths for which default run as administrator fails

    - adds Send to - RunAsTI right-click menu entry to launch files and folders as TI via explorer

    [USAGE]

    - First copy-paste RunAsTI snippet after .bat script content

    - Then call it anywhere to launch programs with arguments as TI

      call :RunAsTI regedit

      call :RunAsTI powershell -noprofile -nologo -noexit -c [environment]::Commandline

      call :RunAsTI cmd /k "whoami /all & color e0"

      call :RunAsTI "C:\System Volume Information"

    - Or just relaunch the script once if not already running as TI:

      whoami /user | findstr /i /c:S-1-5-18 >nul || ( call :RunAsTI "%~f0" %* & exit /b )

    2022.01.28: workaround for 11 release (22000) hindering explorer as TI; fix 7 args

    2023.07.06 fix arguments with quotes

:nfo



:::::::::::::::::::::::::

:: .bat script content ::

:::::::::::::::::::::::::



:: [optional] add Send to - RunAsTI right-click menu entry to launch files and folders as TI via explorer

set "0=%~f0"& powershell -nop -c iex(([io.file]::ReadAllText($env:0)-split':SendTo\:.*')[1])& goto :SendTo:

$SendTo=[Environment]::GetFolderPath('ApplicationData')+'\Microsoft\Windows\SendTo\RunAsTI.bat'; $enc=[Text.Encoding]::UTF8

if ($env:0 -ne $SendTo) {[IO.File]::WriteAllLines($SendTo, [io.file]::ReadAllLines($env:0,$enc))}

:SendTo:



:: call RunAsTI snippet with default commandline args - if none provided, defaults to opening This PC as TI

call :RunAsTI %*



echo args: %*

::whoami

::timeout /t 7



:: done

exit /b



::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: .bat script content end - copy-paste RunAsTI snippet ::

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::



#:RunAsTI snippet to run as TI/System, with innovative HKCU load, ownership privileges, high priority, and explorer support

set ^ #=& set "0=%~f0"& set 1=%*& powershell -c iex(([io.file]::ReadAllText($env:0)-split'#\:RunAsTI .*')[1])& exit /b

function RunAsTI ($cmd,$arg) { $id='RunAsTI'; $key="Registry::HKU\$(((whoami /user)-split' ')[-1])\Volatile Environment"; $code=@'

 $I=[int32]; $M=$I.module.gettype("System.Runtime.Interop`Services.Mar`shal"); $P=$I.module.gettype("System.Int`Ptr"); $S=[string]

 $D=@(); $T=@(); $DM=[AppDomain]::CurrentDomain."DefineDynami`cAssembly"(1,1)."DefineDynami`cModule"(1); $Z=[uintptr]::size

 0..5|% {$D += $DM."Defin`eType"("AveYo_$_",1179913,[ValueType])}; $D += [uintptr]; 4..6|% {$D += $D[$_]."MakeByR`efType"()}

 $F='kernel','advapi','advapi', ($S,$S,$I,$I,$I,$I,$I,$S,$D[7],$D[8]), ([uintptr],$S,$I,$I,$D[9]),([uintptr],$S,$I,$I,[byte[]],$I)

 0..2|% {$9=$D[0]."DefinePInvok`eMethod"(('CreateProcess','RegOpenKeyEx','RegSetValueEx')[$_],$F[$_]+'32',8214,1,$S,$F[$_+3],1,4)}

 $DF=($P,$I,$P),($I,$I,$I,$I,$P,$D[1]),($I,$S,$S,$S,$I,$I,$I,$I,$I,$I,$I,$I,[int16],[int16],$P,$P,$P,$P),($D[3],$P),($P,$P,$I,$I)

 1..5|% {$k=$_; $n=1; $DF[$_-1]|% {$9=$D[$k]."Defin`eField"('f' + $n++, $_, 6)}}; 0..5|% {$T += $D[$_]."Creat`eType"()}

 0..5|% {nv "A$_" ([Activator]::CreateInstance($T[$_])) -fo}; function F ($1,$2) {$T[0]."G`etMethod"($1).invoke(0,$2)}

 $TI=(whoami /groups)-like'*1-16-16384*'; $As=0; if(!$cmd) {$cmd='control';$arg='admintools'}; if ($cmd-eq'This PC'){$cmd='file:'}

 if (!$TI) {'TrustedInstaller','lsass','winlogon'|% {if (!$As) {$9=sc.exe start $_; $As=@(get-process -name $_ -ea 0|% {$_})[0]}}

 function M ($1,$2,$3) {$M."G`etMethod"($1,[type[]]$2).invoke(0,$3)}; $H=@(); $Z,(4*$Z+16)|% {$H += M "AllocHG`lobal" $I $_}

 M "WriteInt`Ptr" ($P,$P) ($H[0],$As.Handle); $A1.f1=131072; $A1.f2=$Z; $A1.f3=$H[0]; $A2.f1=1; $A2.f2=1; $A2.f3=1; $A2.f4=1

 $A2.f6=$A1; $A3.f1=10*$Z+32; $A4.f1=$A3; $A4.f2=$H[1]; M "StructureTo`Ptr" ($D[2],$P,[boolean]) (($A2 -as $D[2]),$A4.f2,$false)

 $Run=@($null, "powershell -win 1 -nop -c iex `$env:R; # $id", 0, 0, 0, 0x0E080600, 0, $null, ($A4 -as $T[4]), ($A5 -as $T[5]))

 F 'CreateProcess' $Run; return}; $env:R=''; rp $key $id -force; $priv=[diagnostics.process]."GetM`ember"('SetPrivilege',42)[0]

 'SeSecurityPrivilege','SeTakeOwnershipPrivilege','SeBackupPrivilege','SeRestorePrivilege' |% {$priv.Invoke($null, @("$_",2))}

 $HKU=[uintptr][uint32]2147483651; $NT='S-1-5-18'; $reg=($HKU,$NT,8,2,($HKU -as $D[9])); F 'RegOpenKeyEx' $reg; $LNK=$reg[4]

 function L ($1,$2,$3) {sp 'HKLM:\Software\Classes\AppID\{CDCBCFCA-3CDC-436f-A4E2-0E02075250C2}' 'RunAs' $3 -force -ea 0

  $b=[Text.Encoding]::Unicode.GetBytes("\Registry\User\$1"); F 'RegSetValueEx' @($2,'SymbolicLinkValue',0,6,[byte[]]$b,$b.Length)}

 function Q {[int](gwmi win32_process -filter 'name="explorer.exe"'|?{$_.getownersid().sid-eq$NT}|select -last 1).ProcessId}

 $11bug=($((gwmi Win32_OperatingSystem).BuildNumber)-eq'22000')-AND(($cmd-eq'file:')-OR(test-path -lit $cmd -PathType Container))

 if ($11bug) {'System.Windows.Forms','Microsoft.VisualBasic' |% {[Reflection.Assembly]::LoadWithPartialName("'$_")}}

 if ($11bug) {$path='^(l)'+$($cmd -replace '([\+\^\%\~\(\)\[\]])','{$1}')+'{ENTER}'; $cmd='control.exe'; $arg='admintools'}

 L ($key-split'\\')[1] $LNK ''; $R=[diagnostics.process]::start($cmd,$arg); if ($R) {$R.PriorityClass='High'; $R.WaitForExit()}

 if ($11bug) {$w=0; do {if($w-gt40){break}; sleep -mi 250;$w++} until (Q); [Microsoft.VisualBasic.Interaction]::AppActivate($(Q))}

 if ($11bug) {[Windows.Forms.SendKeys]::SendWait($path)}; do {sleep 7} while(Q); L '.Default' $LNK 'Interactive User'

'@; $V='';'cmd','arg','id','key'|%{$V+="`n`$$_='$($(gv $_ -val)-replace"'","''")';"}; sp $key $id $($V,$code) -type 7 -force -ea 0

 start powershell -args "-win 1 -nop -c `n$V `$env:R=(gi `$key -ea 0).getvalue(`$id)-join''; iex `$env:R" -verb runas

}; $A=,$env:1-split'"([^"]+)"|([^ ]+)',2|%{$_.Trim(' ')}; RunAsTI $A[1] $A[2]; #:RunAsTI lean & mean snippet by AveYo, 2023.07.06



```

*2022.01.28: workaround for 11 release (22000) delaying explorer; fix 7 args*  

*2023.07.06: fix arguments with quotes*  



#### [RunAsTI.ps1](RunAsTI.ps1) or copy-paste function code in powershell console  - updated 2022.01.28

```ps1

$host.ui.RawUI.WindowTitle = 'RunAsTI - lean and mean snippet by AveYo, 2018-2022'

<#

  [FEATURES]

  - innovative HKCU load, no need for reg load / unload ping-pong; programs get the user profile

  - sets ownership privileges, high priority, and explorer support; get System if TI unavailable        

  - accepts special characters in paths for which default run as administrator fails

  - can copy-paste snippet directly in powershell console then use it manually

  [USAGE]

  - First copy-paste RunAsTI snippet before .ps1 script content

  - Then call it anywhere after to launch programs with arguments as TI

    RunAsTI regedit

    RunAsTI powershell '-noprofile -nologo -noexit -c [environment]::Commandline'

    RunAsTI cmd '/k "whoami /all & color e0"'

    RunAsTI "C:\System Volume Information"

  - Or just relaunch the script once if not already running as TI:

    if (((whoami /user)-split' ')[-1]-ne'S-1-5-18') {

      RunAsTI powershell "-f $($MyInvocation.MyCommand.Path) $($args[0]) $($args[1..99])"; return

    }

  2022.01.28: workaround for 11 release (22000) hindering explorer as TI

#>



#########################################################

# copy-paste RunAsTI snippet before .ps1 script content #

#########################################################



function RunAsTI ($cmd,$arg) { $id='RunAsTI'; $key="Registry::HKU\$(((whoami /user)-split' ')[-1])\Volatile Environment"; $code=@'

 $I=[int32]; $M=$I.module.gettype("System.Runtime.Interop`Services.Mar`shal"); $P=$I.module.gettype("System.Int`Ptr"); $S=[string]

 $D=@(); $T=@(); $DM=[AppDomain]::CurrentDomain."DefineDynami`cAssembly"(1,1)."DefineDynami`cModule"(1); $Z=[uintptr]::size 

 0..5|% {$D += $DM."Defin`eType"("AveYo_$_",1179913,[ValueType])}; $D += [uintptr]; 4..6|% {$D += $D[$_]."MakeByR`efType"()}

 $F='kernel','advapi','advapi', ($S,$S,$I,$I,$I,$I,$I,$S,$D[7],$D[8]), ([uintptr],$S,$I,$I,$D[9]),([uintptr],$S,$I,$I,[byte[]],$I)

 0..2|% {$9=$D[0]."DefinePInvok`eMethod"(('CreateProcess','RegOpenKeyEx','RegSetValueEx')[$_],$F[$_]+'32',8214,1,$S,$F[$_+3],1,4)}

 $DF=($P,$I,$P),($I,$I,$I,$I,$P,$D[1]),($I,$S,$S,$S,$I,$I,$I,$I,$I,$I,$I,$I,[int16],[int16],$P,$P,$P,$P),($D[3],$P),($P,$P,$I,$I)

 1..5|% {$k=$_; $n=1; $DF[$_-1]|% {$9=$D[$k]."Defin`eField"('f' + $n++, $_, 6)}}; 0..5|% {$T += $D[$_]."Creat`eType"()}

 0..5|% {nv "A$_" ([Activator]::CreateInstance($T[$_])) -fo}; function F ($1,$2) {$T[0]."G`etMethod"($1).invoke(0,$2)}   

 $TI=(whoami /groups)-like'*1-16-16384*'; $As=0; if(!$cmd) {$cmd='control';$arg='admintools'}; if ($cmd-eq'This PC'){$cmd='file:'}

 if (!$TI) {'TrustedInstaller','lsass','winlogon'|% {if (!$As) {$9=sc.exe start $_; $As=@(get-process -name $_ -ea 0|% {$_})[0]}}

 function M ($1,$2,$3) {$M."G`etMethod"($1,[type[]]$2).invoke(0,$3)}; $H=@(); $Z,(4*$Z+16)|% {$H += M "AllocHG`lobal" $I $_}

 M "WriteInt`Ptr" ($P,$P) ($H[0],$As.Handle); $A1.f1=131072; $A1.f2=$Z; $A1.f3=$H[0]; $A2.f1=1; $A2.f2=1; $A2.f3=1; $A2.f4=1

 $A2.f6=$A1; $A3.f1=10*$Z+32; $A4.f1=$A3; $A4.f2=$H[1]; M "StructureTo`Ptr" ($D[2],$P,[boolean]) (($A2 -as $D[2]),$A4.f2,$false)

 $Run=@($null, "powershell -win 1 -nop -c iex `$env:R; # $id", 0, 0, 0, 0x0E080600, 0, $null, ($A4 -as $T[4]), ($A5 -as $T[5]))

 F 'CreateProcess' $Run; return}; $env:R=''; rp $key $id -force; $priv=[diagnostics.process]."GetM`ember"('SetPrivilege',42)[0]   

 'SeSecurityPrivilege','SeTakeOwnershipPrivilege','SeBackupPrivilege','SeRestorePrivilege' |% {$priv.Invoke($null, @("$_",2))}

 $HKU=[uintptr][uint32]2147483651; $NT='S-1-5-18'; $reg=($HKU,$NT,8,2,($HKU -as $D[9])); F 'RegOpenKeyEx' $reg; $LNK=$reg[4]

 function L ($1,$2,$3) {sp 'HKLM:\Software\Classes\AppID\{CDCBCFCA-3CDC-436f-A4E2-0E02075250C2}' 'RunAs' $3 -force -ea 0

  $b=[Text.Encoding]::Unicode.GetBytes("\Registry\User\$1"); F 'RegSetValueEx' @($2,'SymbolicLinkValue',0,6,[byte[]]$b,$b.Length)}

 function Q {[int](gwmi win32_process -filter 'name="explorer.exe"'|?{$_.getownersid().sid-eq$NT}|select -last 1).ProcessId}

 $11bug=($((gwmi Win32_OperatingSystem).BuildNumber)-eq'22000')-AND(($cmd-eq'file:')-OR(test-path -lit $cmd -PathType Container))

 if ($11bug) {'System.Windows.Forms','Microsoft.VisualBasic' |% {[Reflection.Assembly]::LoadWithPartialName("'$_")}}

 if ($11bug) {$path='^(l)'+$($cmd -replace '([\+\^\%\~\(\)\[\]])','{$1}')+'{ENTER}'; $cmd='control.exe'; $arg='admintools'}

 L ($key-split'\\')[1] $LNK ''; $R=[diagnostics.process]::start($cmd,$arg); if ($R) {$R.PriorityClass='High'; $R.WaitForExit()}

 if ($11bug) {$w=0; do {if($w-gt40){break}; sleep -mi 250;$w++} until (Q); [Microsoft.VisualBasic.Interaction]::AppActivate($(Q))}

 if ($11bug) {[Windows.Forms.SendKeys]::SendWait($path)}; do {sleep 7} while(Q); L '.Default' $LNK 'Interactive User'

'@; $V='';'cmd','arg','id','key'|%{$V+="`n`$$_='$($(gv $_ -val)-replace"'","''")';"}; sp $key $id $($V,$code) -type 7 -force -ea 0

 start powershell -args "-win 1 -nop -c `n$V `$env:R=(gi `$key -ea 0).getvalue(`$id)-join''; iex `$env:R" -verb runas

} # lean & mean snippet by AveYo, 2022.01.28



#######################

# .ps1 script content #

#######################



# call RunAsTI snippet with default commandline args - if none provided, defaults to opening This PC as TI 

RunAsTI $args[0] $args[1..99]



write-host args: $args

#$(whoami) 

#timeout /t 7



# done

return 



```

*2022.01.28: workaround for 11 release (22000) delaying explorer*  



#### Q & A:  

*Q: what is the deal with the back\`quotes?*  

A: to silence lame powershell keyword-based event-log warnings that include the whole snippet and slows down processing  

*Q: pretty sure reflection is used, single-letter vars for types, then.. any hints about those magic constants and arrays?*  

A: $Ai instance of $T[i] type of $D[i] structure of $DF[i] fields; $D[4] StartupInfoEx, $D[3] StartupInfo, $D[2] lpAttribute..  

$D[0] for pinvoke definitions; numbers mostly calling flags or premade struct sizes; check microsoft docs ^,^  



*Q: is there a way to launch Windows Terminal as TI on a windows 11 machine?*  

A: sure. create a new profile / clone / edit Windows PowerShell one, with the command line:  

```

powershell.exe -nop -c iex($(foreach($l in 10..40){(gp 'Registry::HKCR\RunAsTI' $l -ea 0).$l})-join [char]10); # --% cmd /c %wt%

```



  



Reg_Own - change registry security via scripts  

---  

*supports Windows 7 - Windows 10 - Windows 11 release - Windows 11 dev*  



#### [reg_own.bat](reg_own.bat) snippet showcase  - updated 2022.01.15  



```bat

@echo off& color 07& title reg_own - lean and mean snippet by AveYo, 2018-2022

goto :nfo

    [FEATURES]

    - parameters after key are optional; if -owner if ommited, try to preserve existing

    - enable inherited rights / disable / delete entries with -recurse Inherit / Replace / Delete

    - add -list to show summary even when regedit fails; no low-level registry functions used        

    - can copy-paste snippet directly in powershell (admin) console then use it manually

    [USAGE]

    - First copy-paste reg_own snippet after .bat script content

    - Then call it anywhere (after elevation) to change registry security:

      call :reg_own "key" -recurse Replace -user S-1-5-32-545 -owner S-1-1-0 -acc Allow -perm FullControl

:nfo



:::::::::::::::::::::::::

:: .bat script content ::

:::::::::::::::::::::::::



:::: Define TI sid (TrustedInstaller)

for /f "tokens=3" %%a in ('sc.exe showsid TrustedInstaller') do set TI=%%a >nul



:::: Define USER sid before asking for elevation since it gets replaced for limited accounts

if "%USER%"=="" for /f "tokens=2" %%u in ('whoami /user /fo list') do (set USER=%%u)



:::: Ask for elevation passing USER and any batch arguments

fltmc >nul || (set _=set USER=%USER%^& call "%~f0" %*& powershell -nop -c start cmd -args '/d/x/r',$env:_ -verb runas& exit)



::# lean xp+ color macros by AveYo:  %<%:af " hello "%>>%  &  %<%:cf " w\"or\"ld "%>%   for single \ / " use .%|%\  .%|%/  \"%|%\"

for /f "delims=:" %%s in ('echo;prompt $h$s$h:^|cmd /d') do set "|=%%s"&set ">>=\..\c nul&set /p s=%%s%%s%%s%%s%%s%%s%%snul findstr /c:\ /a" &set ">=%>>%&echo;" &set "|=%|:~0,1%" &set /p s=\"%public%\c"



:: Setup a test key

reg delete HKLM\SOFTWARE\REG_OWN /f >nul 2>nul& reg add HKLM\SOFTWARE\REG_OWN\DEL\ME\NOW /f >nul 2>nul & prompt $E >nul



%<%:af " Allow FullControl from Administrators "%>>% & %<%:f0 " default, just this key "%>%

echo;call :reg_own "HKEY_LOCAL_MACHINE\SOFTWARE\REG_OWN" -list

     call :reg_own "HKEY_LOCAL_MACHINE\SOFTWARE\REG_OWN" -list



%<%:8f " Allow READ from Users "%>>% & %<%:f0 " recursive, enable inheritance [no -list to hide output] "%>%

echo;call :reg_own "HKLM:\SOFTWARE\REG_OWN\DEL" -recurse Inherit -user S-1-5-32-545 -acc Allow -perm ReadKey

     call :reg_own "HKLM:\SOFTWARE\REG_OWN\DEL" -recurse Inherit -user S-1-5-32-545 -acc Allow -perm ReadKey



echo;

%<%:5f " Allow WriteKey from %%USER%% and set owner to SYSTEM "%>>% & %<%:f0 " just this key "%>%

echo;call :reg_own "HKLM\SOFTWARE\REG_OWN\DEL" -user %%USER%% -owner S-1-5-18 -acc Allow -perm WriteKey -list

     call :reg_own "HKLM\SOFTWARE\REG_OWN\DEL" -user %USER%   -owner S-1-5-18 -acc Allow -perm WriteKey -list



%<%:cf " Deny changes from Everyone and set owner to TrustedInstaller "%>>% & %<%:f0 " recursive, disable inheritance "%>%

set nochanges="SetValue,Delete,ChangePermissions,TakeOwnership"

echo;call :reg_own "HKLM\SOFTWARE\REG_OWN\DEL" -recurse Replace -user S-1-1-0 -owner %%TI%% -acc Deny -perm %nochanges% -list

     call :reg_own "HKLM\SOFTWARE\REG_OWN\DEL" -recurse Replace -user S-1-1-0 -owner %TI%   -acc Deny -perm %nochanges% -list



echo;

%<%:0e "TO WRITE LOCKED VALUES WHILE TRYING TO PRESERVE EXISTING OWNER AND RIGHTS I RECOMMEND THE FOLLOWING:"%>%



echo;

%<%:e0 "0. DO WHATEVER MODIFICATIONS NEEDED IN THE TARGET REGKEY - SHOULD FAIL NOW "%>%

echo;reg add "HKLM\SOFTWARE\REG_OWN\DEL" /v somevalue /d somedata /f

     reg add "HKLM\SOFTWARE\REG_OWN\DEL" /v somevalue /d somedata /f



echo;

%<%:9e "1. Allow FullControl from Everyone "%>>% & %<%:f0 " recursive, disable inheritance "%>%

echo;call :reg_own "HKLM\SOFTWARE\REG_OWN\DEL" -recurse Replace -user S-1-1-0 -list

     call :reg_own "HKLM\SOFTWARE\REG_OWN\DEL" -recurse Replace -user S-1-1-0 -list



%<%:e0 "2. DO WHATEVER MODIFICATIONS NEEDED IN THE TARGET REGKEY - SHOULD SUCCEED NOW "%>%

echo;reg add "HKLM\SOFTWARE\REG_OWN\DEL" /v somevalue /d somedata /f

     reg add "HKLM\SOFTWARE\REG_OWN\DEL" /v somevalue /d somedata /f



echo;

%<%:9e "3. Remove non-inherited rules from Everyone "%>>% & %<%:f0 " recursive, delete "%>%

echo;call :reg_own "HKLM\SOFTWARE\REG_OWN\DEL" -recurse Delete -user S-1-1-0 -list

     call :reg_own "HKLM\SOFTWARE\REG_OWN\DEL" -recurse Delete -user S-1-1-0 -list



:: Delete test key

reg delete HKLM\SOFTWARE\REG_OWN /f >nul 2>nul



echo;

%<%:bf " Done! "%>%

choice /c EX1T

exit /b



::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: .bat script content end - copy-paste reg_own snippet ::

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::



#:reg_own "HKCU\Key" -recurse Inherit / Replace / Delete -user S-1-5-32-545 -owner '' -acc Allow -perm ReadKey

set ^ #=&set "0=%~f0"&set 1=%*& powershell -nop -c iex(([io.file]::ReadAllText($env:0)-split'#\:reg_own .*')[1]); # --%% %*&exit/b

function reg_own { param ( $key, $recurse='', $user='S-1-5-32-544', $owner='', $acc='Allow', $perm='FullControl', [switch]$list )

  $D1=[uri].module.gettype('System.Diagnostics.Process')."GetM`ember"('SetPrivilege',42)[0]; $u=$user; $o=$owner; $p=524288  

  'SeSecurityPrivilege','SeTakeOwnershipPrivilege','SeBackupPrivilege','SeRestorePrivilege' |% {$D1.Invoke($null, @("$_",2))}

  $reg=$key-split':?\\',2; $key=$reg-join'\'; $HK=gi -lit Registry::$($reg[0]) -force; $re=$recurse; $in=(1,0)[$re-eq'Inherit']

  $own=$o-eq''; if($own){$o=$u}; $sid=[Security.Principal.SecurityIdentifier]; $w='S-1-1-0',$u,$o |% {new-object $sid($_)}

  $r=($w[0],$p,1,0,0),($w[1],$perm,1,0,$acc) |% {new-object Security.AccessControl.RegistryAccessRule($_)}; function _own($k,$l) {

  $t=$HK.OpenSubKey($k,2,'TakeOwnership'); if($t) { try {$n=$t.GetAccessControl(4)} catch {$n=$HK.GetAccessControl(4)}

  $u=$n.GetOwner($sid); if($own-and $u) {$w[2]=$u}; $n.SetOwner($w[0]); $t.SetAccessControl($n); $d=$HK.GetAccessControl(2)

  $c=$HK.OpenSubKey($k,2,'ChangePermissions'); $b=$c.GetAccessControl(2); $d.RemoveAccessRuleAll($r[1]); $d.ResetAccessRule($r[0])

  $c.SetAccessControl($d); if($re-ne'') {$sk=$HK.OpenSubKey($k).GetSubKeyNames(); foreach($i in $sk) {_own "$k\$i" $false}}

  if($re-ne'') {$b.SetAccessRuleProtection($in,1)}; $b.ResetAccessRule($r[1]); if($re-eq'Delete') {$b.RemoveAccessRuleAll($r[1])} 

  $c.SetAccessControl($b); $b,$n |% {$_.SetOwner($w[2])}; $t.SetAccessControl($n)}; if($l) {return $b|fl} }; _own $reg[1] $list

}; iex "reg_own $(([environment]::get_CommandLine()-split'-[-]%+ ?')[1])" #:reg_own lean & mean snippet by AveYo, 2022.01.15



```



#### [reg_own.ps1](reg_own.ps1) or copy-paste function code in powershell (admin) console  - updated 2022.01.15  

```ps1

$host.ui.RawUI.WindowTitle = 'reg_own - lean and mean snippet by AveYo, 2018-2022'

<#

    [FEATURES]

    - parameters after key are optional; if -owner if ommited, try to preserve existing

    - enable inherited rights / disable / delete entries with -recurse Inherit / Replace / Delete

    - add -list to show summary even when regedit fails; no low-level registry functions used        

    - can copy-paste snippet directly in powershell (admin) console then use it manually

    [USAGE]

    - First copy-paste reg_own snippet before .ps1 script content

    - Then call it anywhere (after elevation) to change registry security:

      reg_own "key" -recurse Replace -user S-1-5-32-545 -owner S-1-1-0 -acc Allow -perm FullControl

#>



#########################################################

# copy-paste reg_own snippet before .ps1 script content #

#########################################################



function reg_own { param ( $key, $recurse='', $user='S-1-5-32-544', $owner='', $acc='Allow', $perm='FullControl', [switch]$list )

  $D1=[uri].module.gettype('System.Diagnostics.Process')."GetM`ember"('SetPrivilege',42)[0]; $u=$user; $o=$owner; $p=524288  

  'SeSecurityPrivilege','SeTakeOwnershipPrivilege','SeBackupPrivilege','SeRestorePrivilege' |% {$D1.Invoke($null, @("$_",2))}

  $reg=$key-split':?\\',2; $key=$reg-join'\'; $HK=gi -lit Registry::$($reg[0]) -force; $re=$recurse; $in=(1,0)[$re-eq'Inherit']

  $own=$o-eq''; if($own){$o=$u}; $sid=[Security.Principal.SecurityIdentifier]; $w='S-1-1-0',$u,$o |% {new-object $sid($_)}

  $r=($w[0],$p,1,0,0),($w[1],$perm,1,0,$acc) |% {new-object Security.AccessControl.RegistryAccessRule($_)}; function _own($k,$l) {

  $t=$HK.OpenSubKey($k,2,'TakeOwnership'); if($t) { try {$n=$t.GetAccessControl(4)} catch {$n=$HK.GetAccessControl(4)}

  $u=$n.GetOwner($sid); if($own-and $u) {$w[2]=$u}; $n.SetOwner($w[0]); $t.SetAccessControl($n); $d=$HK.GetAccessControl(2)

  $c=$HK.OpenSubKey($k,2,'ChangePermissions'); $b=$c.GetAccessControl(2); $d.RemoveAccessRuleAll($r[1]); $d.ResetAccessRule($r[0])

  $c.SetAccessControl($d); if($re-ne'') {$sk=$HK.OpenSubKey($k).GetSubKeyNames(); foreach($i in $sk) {_own "$k\$i" $false}}

  if($re-ne'') {$b.SetAccessRuleProtection($in,1)}; $b.ResetAccessRule($r[1]); if($re-eq'Delete') {$b.RemoveAccessRuleAll($r[1])} 

  $c.SetAccessControl($b); $b,$n |% {$_.SetOwner($w[2])}; $t.SetAccessControl($n)}; if($l) {return $b|fl} }; _own $reg[1] $list

} # lean & mean snippet by AveYo, 2022.01.15



#######################

# .ps1 script content #

#######################



## Define TI sid (TrustedInstaller)

$TI = (sc.exe showsid TrustedInstaller)-split': '|?{$_-like'*S-1-*'}



## Define USER sid before asking for elevation since it gets replaced for limited accounts

if ($null -eq $USER) {$USER = ((whoami /user)-split' ')[-1]}



## Ask for elevation passing USER

$admin = fltmc; if ($LASTEXITCODE) {

  $arg = "-nop -c `$USER='$USER'; iex((gc '$($MyInvocation.MyCommand.Path-replace'''','''''')')-join'`n')" 

  start powershell -verb runas -args $arg; exit

}



## Setup a test key

reg delete HKLM\SOFTWARE\REG_OWN /f >$null 2>$null; reg add HKLM\SOFTWARE\REG_OWN\DEL\ME\NOW /f >$null 2>$null; function prompt {}



write-host " Allow FullControl from Administrators " -back 0xa -fore 0xf -nonew

write-host " default, just this key " -back 0xf -fore 0x0

write-host "reg_own 'HKEY_LOCAL_MACHINE\SOFTWARE\REG_OWN' -list"

            reg_own 'HKEY_LOCAL_MACHINE\SOFTWARE\REG_OWN' -list



write-host " Allow READ from Users " -back 0x8 -fore 0xf -nonew

write-host " recursive, enable inheritance [no -list to hide output] " -back 0xf -fore 0x0

write-host "reg_own 'HKLM:\SOFTWARE\REG_OWN\DEL' -recurse Inherit -user S-1-5-32-545 -acc Allow -perm ReadKey"

            reg_own 'HKLM:\SOFTWARE\REG_OWN\DEL' -recurse Inherit -user S-1-5-32-545 -acc Allow -perm ReadKey



write-host

write-host " Allow WriteKey from `$USER and set owner to SYSTEM " -back 0xd -fore 0xf -nonew

write-host " just this key " -back 0xf -fore 0x0

write-host "reg_own 'HKLM\SOFTWARE\REG_OWN\DEL' -user `$USER -owner S-1-5-18 -acc Allow -perm WriteKey -list"

            reg_own 'HKLM\SOFTWARE\REG_OWN\DEL' -user  $USER -owner S-1-5-18 -acc Allow -perm WriteKey -list



write-host " Deny changes from Everyone and set owner to TrustedInstaller " -back 0xc -fore 0xf -nonew

write-host " recursive, disable inheritance " -back 0xf -fore 0x0

$nochanges = "SetValue,Delete,ChangePermissions,TakeOwnership"

write-host "reg_own 'HKLM\SOFTWARE\REG_OWN\DEL' -recurse Replace -user S-1-1-0 -owner `$TI -acc Deny -perm `$nochanges -list"

            reg_own 'HKLM\SOFTWARE\REG_OWN\DEL' -recurse Replace -user S-1-1-0 -owner  $TI -acc Deny -perm  $nochanges -list



write-host

write-host "TO WRITE LOCKED VALUES WHILE TRYING TO PRESERVE EXISTING OWNER AND RIGHTS I RECOMMEND THE FOLLOWING:" -back 0x0 -fore 0xe



write-host

write-host "0. DO WHATEVER MODIFICATIONS NEEDED IN THE TARGET REGKEY - SHOULD FAIL NOW " -back 0xe -fore 0x0

write-host "reg add 'HKLM\SOFTWARE\REG_OWN\DEL' /v somevalue /d somedata /f"

            reg add 'HKLM\SOFTWARE\REG_OWN\DEL' /v somevalue /d somedata /f



write-host

write-host "1. Allow FullControl from Everyone " -back 0x9 -fore 0xe -nonew

write-host " recursive, disable inheritance " -back 0xf -fore 0x0

write-host "reg_own 'HKLM\SOFTWARE\REG_OWN\DEL' -recurse Replace -user S-1-1-0 -list"

            reg_own 'HKLM\SOFTWARE\REG_OWN\DEL' -recurse Replace -user S-1-1-0 -list



write-host "2. DO WHATEVER MODIFICATIONS NEEDED IN THE TARGET REGKEY - SHOULD SUCCEED NOW " -back 0xe -fore 0x0

write-host "reg add 'HKLM\SOFTWARE\REG_OWN\DEL' /v somevalue /d somedata /f"

            reg add 'HKLM\SOFTWARE\REG_OWN\DEL' /v somevalue /d somedata /f



write-host

write-host "3. Remove non-inherited rules from Everyone " -back 0x9 -fore 0xe -nonew

write-host " recursive, delete " -back 0xf -fore 0x0

write-host "reg_own 'HKLM\SOFTWARE\REG_OWN\DEL' -recurse Delete -user S-1-1-0 -list"

            reg_own 'HKLM\SOFTWARE\REG_OWN\DEL' -recurse Delete -user S-1-1-0 -list



## Delete test key

reg delete HKLM\SOFTWARE\REG_OWN /f >$null 2>$null



write-host

write-host " Done! "

choice /c EX1T

return



```






ToggleDefender - without it re-enabling itself at the worst moment  

---  

*supports Windows 7 - Windows 11*  

February 14 2022: Tamper Protection finally reliable - this script and more pesky stuff have been ignoring it just fine for 3 freaking years, about time!  

So now it won't work unless you disable Tamper Protection manually from GUI - which **I strongly advise re-enabling after you're done with intensive tasks**!  

August 2023: ToggleDefender now reliably switches the service on and off!  

You still need to manually turn off Tamper Protection, and the script will warn and wait for it  



#### [ToggleDefender.bat](ToggleDefender.bat) or [ToggleDefender.ps1](ToggleDefender.ps1) or copy-paste code in powershell console  - updated 2023.09.13  

```ps1

@(set "0=%~f0"^)#) & powershell -nop -c "iex([io.file]::ReadAllText($env:0))" & exit /b



## Toggle Defender, AveYo 2023.09.13

## for users that understand the risk but still need it off to prevent unexpected interference and i/o handicap

## may copy-paste directly into powershell



$ENABLE_TAMPER_PROTECTION = 0    <#  1 script re-enables Tamper Protection   0 skip  #>

$TOGGLE_SMARTSCREENFILTER = 1    <#  1 script toggles SmartScreen as well    0 skip  #>



## Allowed check

$wait = 20; while ((gp 'HKLM:\SOFTWARE\Microsoft\Windows Defender\Features' 'TamperProtection' -ea 0).TamperProtection -ne 0x4) {

  if ($wait -eq 20) {echo "`n Toggle Defender only works after turning Tamper Protection off in Windows Security settings`n"}

  if ($wait -eq 16) {if ($ENABLE_TAMPER_PROTECTION -ne 0) {start 'windowsdefender://threatsettings/'}}

  if ($wait -lt 0) {kill -name ApplicationFrameHost -force -ea 0; return}

  write-host "`r $wait " -nonew; sleep 1; $wait--

}

write-host; kill -name ApplicationFrameHost -force -ea 0 



## Service check

if (get-process "MsMpEng" -ea 0) {$YES=6; $Q="Disable"; $NO=7; $V="ON"; $I=0} else {$YES=7; $Q="Enable"; $NO=6; $V="OFF"; $I=16}



## Comment to hide dialog prompt with Yes, No, Cancel (6,7,2)

if ($env:1 -ne 6 -and $env:1 -ne 7) {

  $choice=(new-object -ComObject Wscript.Shell).Popup($Q + " Windows Defender?", 0, "Defender service is: " + $V, 0x1033 + $I)

  if ($choice -eq 2) {break} elseif ($choice -eq 6) {$env:1=$YES} else {$env:1=$NO}

}



## Without the dialog prompt above would toggle automatically

if ($env:1 -ne 6 -and $env:1 -ne 7) {$env:1=$YES}



## Toggle - can press No to Enable or Disable again so there are more variants:

if ( ($NO -eq 7 -and $env:1 -eq 6) -or ($NO -eq 6 -and $env:1 -eq 6) ) {$op="Disable"} 

if ( ($NO -eq 7 -and $env:1 -eq 7) -or ($NO -eq 6 -and $env:1 -eq 7) ) {$op="Enable"}



## pass script options

$O1 = $ENABLE_TAMPER_PROTECTION; $O2 = $TOGGLE_SMARTSCREENFILTER



## RunAsTI mod

function RunAsTI { $id="Defender"; $key='Registry::HKU\S-1-5-21-*\Volatile Environment'; $code=@'

 $I=[int32]; $M=$I.module.gettype("System.Runtime.Interop`Services.Mar`shal"); $P=$I.module.gettype("System.Int`Ptr"); $S=[string]

 $D=@(); $DM=[AppDomain]::CurrentDomain."DefineDynami`cAssembly"(1,1)."DefineDynami`cModule"(1); $U=[uintptr]; $Z=[uintptr]::size 

 0..5|% {$D += $DM."Defin`eType"("AveYo_$_",1179913,[ValueType])}; $D += $U; 4..6|% {$D += $D[$_]."MakeByR`efType"()}; $F=@()

 $F+='kernel','CreateProcess',($S,$S,$I,$I,$I,$I,$I,$S,$D[7],$D[8]), 'advapi','RegOpenKeyEx',($U,$S,$I,$I,$D[9])

 $F+='advapi','RegSetValueEx',($U,$S,$I,$I,[byte[]],$I),'advapi','RegFlushKey',($U),'advapi','RegCloseKey',($U)

 0..4|% {$9=$D[0]."DefinePInvok`eMethod"($F[3*$_+1], $F[3*$_]+"32", 8214,1,$S, $F[3*$_+2], 1,4)}

 $DF=($P,$I,$P),($I,$I,$I,$I,$P,$D[1]),($I,$S,$S,$S,$I,$I,$I,$I,$I,$I,$I,$I,[int16],[int16],$P,$P,$P,$P),($D[3],$P),($P,$P,$I,$I)

 1..5|% {$k=$_; $n=1; $DF[$_-1]|% {$9=$D[$k]."Defin`eField"("f" + $n++, $_, 6)}}; $T=@(); 0..5|% {$T += $D[$_]."Creat`eType"()}

 0..5|% {nv "A$_" ([Activator]::CreateInstance($T[$_])) -fo}; function F ($1,$2) {$T[0]."G`etMethod"($1).invoke(0,$2)}

 function M ($1,$2,$3) {$M."G`etMethod"($1,[type[]]$2).invoke(0,$3)}; $H=@(); $Z,(4*$Z+16)|% {$H += M "AllocHG`lobal" $I $_}

 if ([environment]::username -ne "system") { $TI="Trusted`Installer"; start-service $TI -ea 0; $As=get-process -name $TI -ea 0

 M "WriteInt`Ptr" ($P,$P) ($H[0],$As.Handle); $A1.f1=131072; $A1.f2=$Z; $A1.f3=$H[0]; $A2.f1=1; $A2.f2=1; $A2.f3=1; $A2.f4=1

 $A2.f6=$A1; $A3.f1=10*$Z+32; $A4.f1=$A3; $A4.f2=$H[1]; M "StructureTo`Ptr" ($D[2],$P,[boolean]) (($A2 -as $D[2]),$A4.f2,$false)

 $R=@($null, "powershell -nop -c iex(`$env:R); # $id", 0, 0, 0, 0x0E080610, 0, $null, ($A4 -as $T[4]), ($A5 -as $T[5]))

 F 'CreateProcess' $R; return}; $env:R=''; rp $key $id -force -ea 0; $e=[diagnostics.process]."GetM`ember"('SetPrivilege',42)[0]

 'SeSecurityPrivilege','SeTakeOwnershipPrivilege','SeBackupPrivilege','SeRestorePrivilege' |% {$e.Invoke($null,@("$_",2))}

 ## Toggling was unreliable due to multiple windows programs with open handles on these keys

 ## so went with low-level functions instead! do not use them in other scripts without a trip to learn-microsoft-com  

 function RegSetDwords ($hive, $key, [array]$values, [array]$dword, $REG_TYPE=4, $REG_ACCESS=2, $REG_OPTION=0) {

   $rok = ($hive, $key, $REG_OPTION, $REG_ACCESS, ($hive -as $D[9]));  F "RegOpenKeyEx" $rok; $rsv = $rok[4]

   $values |% {$i = 0} { F "RegSetValueEx" ($rsv[0], [string]$_, 0, $REG_TYPE, [byte[]]($dword[$i]), 4); $i++ }

   F "RegFlushKey" @($rsv); F "RegCloseKey" @($rsv); $rok = $null; $rsv = $null;

 }  

 ## The ` sprinkles are used to keep ps event log clean, not quote the whole snippet on every run

 ################################################################################################################################ 

 

 ## get script options

 $toggle = @(0,1)[$op -eq "Disable"]; $toggle_rev = @(0,1)[$op -eq "Enable"]; write-host "`n $op Defender, please wait...`n"

 $ENABLE_TAMPER_PROTECTION = $O1; $TOGGLE_SMARTSCREENFILTER = $O2



 rnp "HKLM:\SOFTWARE\Microsoft\Windows\Windows Error Reporting" "Disabled" "Disabled_Old" -force -ea 0

 sp "HKLM:\SOFTWARE\Microsoft\Windows\Windows Error Reporting" "Disabled" 1 -type Dword -force -ea 0

 stop-service "wscsvc" -force -ea 0 >'' 2>''

 kill -name "OFFmeansOFF","MpCmdRun" -force -ea 0 

 

 $HKLM = [uintptr][uint32]2147483650; $HKU = [uintptr][uint32]2147483651 

 $VALUES = "ServiceKeepAlive","PreviousRunningMode","IsServiceRunning","DisableAntiSpyware","DisableAntiVirus","PassiveMode"

 $DWORDS = 0, 0, 0, $toggle, $toggle, $toggle

 RegSetDwords $HKLM "SOFTWARE\Policies\Microsoft\Windows Defender" $VALUES $DWORDS 

 RegSetDwords $HKLM "SOFTWARE\Microsoft\Windows Defender" $VALUES $DWORDS

 [GC]::Collect(); sleep 1

 pushd "$env:programfiles\Windows Defender"

 $mpcmdrun=("OFFmeansOFF.exe","MpCmdRun.exe")[(test-path "MpCmdRun.exe")]

 start -wait $mpcmdrun -args "-${op}Service -HighPriority"

 $wait=@(3,14)[$op -eq "Disable"]

 while ((get-process -name "MsMpEng" -ea 0) -and $wait -gt 0) {$wait--; sleep 1; write-host "`r $wait " -nonew}

 

 ## OFF means OFF

 pushd (split-path $(gp "HKLM:\SYSTEM\CurrentControlSet\Services\WinDefend" ImagePath -ea 0).ImagePath.Trim('"'))

 if ($op -eq "Disable") {ren MpCmdRun.exe OFFmeansOFF.exe -force -ea 0} else {ren OFFmeansOFF.exe MpCmdRun.exe -force -ea 0}

 

 ## Comment to not clear per-user toggle notifications

 gi "Registry::HKU\S-1-5-21-*\Software\Microsoft\Windows\CurrentVersion" |% {

   $n1=join-path $_.PSPath "Notifications\Settings\Windows.SystemToast.SecurityAndMaintenance"

   ni $n1 -force -ea 0|out-null; ri $n1.replace("Settings","Current") -recurse -force -ea 0

   if ($op -eq "Enable") {rp $n1 "Enabled" -force -ea 0} else {sp $n1 "Enabled" 0 -type Dword -force -ea 0}

   ri "HKLM:\Software\Microsoft\Windows Security Health\State\Persist" -recurse -force -ea 0 

 }



 ## Comment to keep old scan history

 if ($op -eq "Disable") {del "$env:ProgramData\Microsoft\Windows Defender\Scans\mpenginedb.db" -force -ea 0}  

 if ($op -eq "Disable") {del "$env:ProgramData\Microsoft\Windows Defender\Scans\History\Service" -recurse -force -ea 0}



 RegSetDwords $HKLM "SOFTWARE\Policies\Microsoft\Windows Defender" $VALUES $DWORDS 

 RegSetDwords $HKLM "SOFTWARE\Microsoft\Windows Defender" $VALUES $DWORDS



 ## when toggling Defender, also toggle SmartScreen - set to 0 at top of the script to skip it

 if ($TOGGLE_SMARTSCREENFILTER -ne 0) {

   sp "HKLM:\CurrentControlSet\Control\CI\Policy" 'VerifiedAndReputablePolicyState' 0 -type Dword -force -ea 0

   sp "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer" 'SmartScreenEnabled' @('Off','Warn')[$toggle -eq 0] -force -ea 0 

   gi Registry::HKEY_Users\S-1-5-21*\Software\Microsoft -ea 0 |% {

     sp "$($_.PSPath)\Windows\CurrentVersion\AppHost" 'EnableWebContentEvaluation' $toggle_rev -type Dword -force -ea 0

     sp "$($_.PSPath)\Windows\CurrentVersion\AppHost" 'PreventOverride' $toggle_rev -type Dword -force -ea 0

     ni "$($_.PSPath)\Edge\SmartScreenEnabled" -ea 0 > ''

     sp "$($_.PSPath)\Edge\SmartScreenEnabled" "(Default)" $toggle_rev

   }

   if ($toggle_rev -eq 0) {kill -name smartscreen -force -ea 0}

 }

 

 ## when re-enabling Defender, also re-enable Tamper Protection - annoying but safer - set to 0 at top of the script to skip it

 if ($ENABLE_TAMPER_PROTECTION -ne 0 -and $op -eq "Enable") {

   RegSetDwords $HKLM "SOFTWARE\Microsoft\Windows Defender\Features" ("TamperProtection","TamperProtectionSource") (1,5)

 }

 

 if ($op -eq "Enable") {start-service "windefend" -ea 0}

 start-service "wscsvc" -ea 0 >'' 2>'' 

 if ($op -eq "Enable") {rnp "HKLM:\SOFTWARE\Microsoft\Windows\Windows Error Reporting" "Disabled_Old" "Disabled" -force -ea 0}

 

 ################################################################################################################################

'@; $V='';"op","id","key","O1","O2"|%{$V+="`n`$$_='$($(gv $_ -val)-replace"'","''")';"}; sp $key $id $V,$code -type 7 -force -ea 0

 start powershell -args "-nop -c `n$V  `$env:R=(gi `$key -ea 0 |% {`$_.getvalue(`$id)-join''}); iex(`$env:R)" -verb runas

} # lean & mean snippet by AveYo, 2023.09.05



RunAsTI

return



```