metasploit-framework/lib/metasm/samples/elfencode.rb

42 lines
706 B
Ruby

#!/usr/bin/env ruby
# This file is part of Metasm, the Ruby assembly manipulation suite
# Copyright (C) 2008 Yoann GUILLOT
#
# Licence is LGPL, see LICENCE in the top-level directory
require 'metasm'
$execlass = Metasm::ELF
load File.join(File.dirname(__FILE__), 'exeencode.rb')
__END__
.interp '/lib/ld-linux.so.2'
.pt_gnu_stack rw
.data
toto db "world", 0
fmt db "Hello, %s !\n", 0
.text
.entrypoint
call metasm_intern_geteip
mov esi, eax
lea eax, [esi-metasm_intern_geteip+toto]
push eax
lea eax, [esi-metasm_intern_geteip+fmt]
push eax
call printf
add esp, 8
push 28h
call _exit
add esp, 4
ret
metasm_intern_geteip:
call 1f
1:
pop eax
add eax, metasm_intern_geteip - 1b
ret