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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
def antivmSearch(pyew):
""" Search for common antivm tricks"""
tricks = {
"Red Pill":"\x0f\x01\x0d\x00\x00\x00\x00\xc3",
"VirtualPc trick":"\x0f\x3f\x07\x0b",
"VMware trick":"VMXh",
"VMCheck.dll":"\x45\xC7\x00\x01",
"VMCheck.dll for VirtualPC":"\x0f\x3f\x07\x0b\xc7\x45\xfc\xff\xff\xff\xff",
"Xen":"XenVMM", # Or XenVMMXenVMM
"Bochs & QEmu CPUID Trick":"\x44\x4d\x41\x63",
"Torpig VMM Trick": "\xE8\xED\xFF\xFF\xFF\x25\x00\x00\x00\xFF\x33\xC9\x3D\x00\x00\x00\x80\x0F\x95\xC1\x8B\xC1\xC3",
"Torpig (UPX) VMM Trick": "\x51\x51\x0F\x01\x27\x00\xC1\xFB\xB5\xD5\x35\x02\xE2\xC3\xD1\x66\x25\x32\xBD\x83\x7F\xB7\x4E\x3D\x06\x80\x0F\x95\xC1\x8B\xC1\xC3"
}
buf = pyew.getBuffer()
for trick in tricks:
pos = buf.find(tricks[trick])
if pos > -1:
print "HINT[0x%x]: Found %s" % (pos, trick)
print
size = len(tricks[trick])
print pyew.disassemble(buf[pos:pos+size], pyew.processor, pyew.type, pyew.lines, pyew.bsize, baseoffset=pos)
functions = {"antivm":antivmSearch}
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