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import sys, os
from optparse import OptionParser
from miasm2.analysis.machine import Machine
from miasm2.jitter.jitload import vm_load_pe, preload_pe, libimp
from miasm2.jitter.jitload import bin_stream_vm
from miasm2.jitter.os_dep import win_api_x86_32, win_api_x86_32_seh
from miasm2.analysis import debugging
# Debug settings
import inspect
from pdb import pm
# Environment settings
filename = os.environ.get('PYTHONSTARTUP')
if filename and os.path.isfile(filename):
execfile(filename)
parser = OptionParser(usage = "usage: %prog [options] file")
parser.add_option('-a', "--address", dest="address", metavar="ADDRESS",
help="Force entry point address", default=None)
parser.add_option('-s', "--segm", dest="usesegm", action="store_true",
help="Use segments fs:", default=False)
parser.add_option('-o', "--hdr", dest="loadhdr", action="store_true",
help="Load pe hdr", default=False)
parser.add_option('-l', "--loadbasedll", dest="loadbasedll",
action="store_true", help="Load base dll (path './win_dll')",
default=False)
parser.add_option('-x', "--dumpall", dest="dumpall", action="store_true",
help="Load base dll", default=False)
parser.add_option('-e', "--loadmainpe", dest="loadmainpe", action="store_true",
help="Load main pe", default=False)
parser.add_option('-r', "--parseresources", dest="parse_resources",
action="store_true", help="Load resources", default=False)
parser.add_option('-b', "--dumpblocs", dest="dumpblocs", action="store_true",
help="Log disasm blocks", default=False)
parser.add_option('-y', "--useseh", dest="use_seh", action="store_true",
help="Use windows SEH", default=False)
parser.add_option('-z', "--singlestep", dest="singlestep", action="store_true",
help="Log single step", default=False)
parser.add_option('-d', "--debugging", dest="debugging", action="store_true",
help="Debug shell", default=False)
parser.add_option('-g', "--gdbserver", dest="gdbserver",
help="Listen on port @port", default=False)
parser.add_option("-j", "--jitter", dest="jitter",
help="Jitter engine. Possible values are : tcc (default),\
llvm, python",
default="tcc")
(options, args) = parser.parse_args(sys.argv[1:])
if not args:
parser.print_help()
sys.exit(0)
#### INSERT HERE CUSTOM DLL METHODS ###
#######################################
fname = args[0]
machine = Machine("x86_32")
myjit = machine.jitter(options.jitter)
if options.usesegm:
myjit.ir_arch.do_stk_segm= True
myjit.ir_arch.do_ds_segm= True
myjit.ir_arch.do_str_segm = True
myjit.ir_arch.do_all_segm = True
bs = bin_stream_vm(myjit.vm)
myjit.jit.bs = bs
# Init stack
myjit.stack_size = 0x100000
myjit.init_stack()
# Import manager
libs = libimp()
# Set libs for win_32 api
win_api_x86_32.winobjs.runtime_dll = libs
all_imp_dll = []
if options.loadbasedll:
# Load library
all_imp_dll = ["ntdll.dll", "kernel32.dll", "user32.dll",
"ole32.dll", "urlmon.dll",
"ws2_32.dll", 'advapi32.dll', "psapi.dll"
]
mod_list = all_imp_dll
all_pe = []
# Load libs in memory
for n in mod_list:
fname_dll = os.path.join('win_dll', n)
e_lib = vm_load_pe(myjit.vm, fname_dll)
libs.add_export_lib(e_lib, n)
all_pe.append(e_lib)
# Patch libs imports
for ee in all_pe:
preload_pe(myjit.vm, ee, libs)
# Load main pe
e = vm_load_pe(myjit.vm, fname)
# Fix mainpe imports
preload_pe(myjit.vm, e, libs)
# Library calls handler
myjit.add_lib_handler(libs, globals())
# Manage SEH
if options.use_seh:
win_api_x86_32_seh.main_pe_name = fname
win_api_x86_32_seh.main_pe = e
win_api_x86_32_seh.loaded_modules = all_imp_dll
win_api_x86_32_seh.init_seh(myjit)
win_api_x86_32_seh.set_win_fs_0(myjit)
# Get entry point address
if options.address is not None:
addr = int(options.address, 16)
else:
addr = e.rva2virt(e.Opthdr.AddressOfEntryPoint)
# Logging options
if options.singlestep:
myjit.jit.log_mn = True
myjit.jit.log_regs = True
if options.dumpblocs:
myjit.jit.log_newbloc = True
# Pre-stack some arguments
myjit.vm_push_uint32_t(2)
myjit.vm_push_uint32_t(1)
myjit.vm_push_uint32_t(0)
myjit.vm_push_uint32_t(0x1337beef)
# Set the runtime guard
def code_sentinelle(myjit):
print 'emulation stop'
myjit.run = False
return False
myjit.add_breakpoint(0x1337beef, code_sentinelle)
#### INSERT HERE CUSTOM BREAKPOINTS ###
#######################################
# Run
if any([options.debugging, options.gdbserver]):
dbg = debugging.Debugguer(myjit)
dbg.init_run(addr)
if options.gdbserver is not False:
port = int(options.gdbserver)
print "Listen on port %d" % port
gdb = machine.gdbserver(dbg, port)
gdb.run()
else:
cmd = debugging.DebugCmd(dbg)
cmd.cmdloop()
else:
print "Start emulation", hex(addr)
myjit.init_run(addr)
print myjit.continue_run()
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