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#!/usr/bin/env python
"""
This file is part of Pyew
Copyright (C) 2009, 2010 Joxean Koret
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import sys
try:
import libemu
hasLibEmu = True
except:
hasLibEmu = False
def shellcodeSearch(pyew):
""" Search for shellcode """
moffset = pyew.offset
buf = pyew.f.read()
if hasLibEmu:
emu = libemu.Emulator()
ret = emu.test(pyew.buf)
if ret:
if ret > 0:
print "HINT[emu:0x%x] %x" % (moffset + ret, repr(buf[ret:ret+options.cols]))
pyew.disassemble(buf[ret:ret+options.cols], pyew.processor, pyew.type, 4, pyew.bsize, baseoffset=pyew.offset)
else:
print "Error with libemu: 0x%x" % ret
else:
print "***No shellcode detected via emulation"
pyew.seek(moffset)
functions = {"sc":shellcodeSearch}
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