metasploit-gs/lib/msf/core/payload/python.rb

# -*- coding: binary -*-

module Msf::Payload::Python
  # Mark the payload as dynamic, as the zlib compression with a single char change can lead to size changes even if the original payload is the same length
  ForceDynamicCachedSize = true

  #
  # Encode the given python command in base64 and wrap it with a stub
  # that will decode and execute it on the fly. The code will be condensed to
  # one line and compatible with all Python versions supported by the Python
  # Meterpreter stage.
  #
  # @param python_code [String] The python code to execute.
  # @return [String] Full python stub to execute the command.
  #
  def self.create_exec_stub(python_code)
    # Encoding is required in order to handle Python's formatting
    payload = Rex::Text.encode_base64(Rex::Text.zlib_deflate(python_code))
    b64_stub = "exec(__import__('zlib').decompress(__import__('base64').b64decode(__import__('codecs').getencoder('utf-8')('#{payload}')[0])))"
    b64_stub
  end

  def py_create_exec_stub(python_code)
    Msf::Payload::Python.create_exec_stub(python_code)
  end

end