Not PowerShell
Usage
usage:
nps.exe "{powershell single command}"
nps.exe "& {commands; semi-colon; separated}"
nps.exe -encodedcommand {base64_encoded_command}
nps.exe -encode "commands to encode to base64"
nps.exe -decode {base64_encoded_command}
Single Commands
c:\Downloads>nps.exe Get-Date
12/18/2015 2:19:37 PM
Multiple Commands
c:\Downloads>nps.exe "& Get-Date; Write-Output 'Ohai there'"
12/18/2015 2:19:49 PM
Ohai there
Encoding
c:\Downloads>nps.exe -encode "& Get-Date; Write-Output 'Ohai there'"
JgAgAEcAZQB0AC0ARABhAHQAZQA7ACAAVwByAGkAdABlAC0ATwB1AHQAcAB1AHQAIAAnAE8AaABhAGkAIAB0AGgAZQByAGUAJwA=
Decoding
c:\Downloads>nps.exe -decode JgAgAEcAZQB0AC0ARABhAHQAZQA7ACAAVwByAGkAdABlAC0ATwB1AHQAcAB1AHQAIAAnAE8
AaABhAGkAIAB0AGgAZQByAGUAJwA=
& Get-Date; Write-Output 'Ohai there'
Running Encoded Command
c:\Downloads>nps.exe -encodedcommand JgAgAEcAZQB0AC0ARABhAHQAZQA7ACAAVwByAGkAdABlAC0ATwB1AHQAcAB1AHQ
AIAAnAE8AaABhAGkAIAB0AGgAZQByAGUAJwA=
12/18/2015 2:20:19 PM
Ohai there
Same Encoded Command works in PowerShell
c:\Downloads>powershell.exe -noprofile -encodedcommand JgAgAEcAZQB0AC0ARABhAHQAZQA7ACAAVwByAGkAdABlA
C0ATwB1AHQAcAB1AHQAIAAnAE8AaABhAGkAIAB0AGgAZQByAGUAJwA=
Friday, December 18, 2015 2:20:30 PM
Ohai there