def init_jitter(loc_db):
global data, run_addr
# Create jitter
myjit = Machine("x86_32").jitter(loc_db, sys.argv[1])
myjit.vm.add_memory_page(run_addr, PAGE_READ | PAGE_WRITE, data)
# Init jitter
myjit.init_stack()
myjit.set_trace_log()
myjit.push_uint32_t(0x1337beef)
myjit.add_breakpoint(0x1337beef, code_sentinelle)
return myjit
def init_jitter():
global data, run_addr
# Create jitter
myjit = Machine("x86_32").jitter(sys.argv[1])
myjit.vm.add_memory_page(run_addr, PAGE_READ | PAGE_WRITE, data)
# Init jitter
myjit.init_stack()
myjit.set_trace_log()
myjit.push_uint32_t(0x1337beef)
myjit.add_breakpoint(0x1337beef, code_sentinelle)
return myjit
class Asm_Test_16(Asm_Test):
arch_name = "x86_16"
arch_attrib = 16
ret_addr = 0x1337
def __init__(self, jitter_engine):
self.myjit = Machine(self.arch_name).jitter(jitter_engine)
self.myjit.stack_base = 0x1000
self.myjit.stack_size = 0x1000
self.myjit.init_stack()
def init_machine(self):
self.myjit.vm.add_memory_page(self.run_addr, PAGE_READ | PAGE_WRITE, self.assembly)
self.myjit.push_uint16_t(self.ret_addr)
self.myjit.add_breakpoint(self.ret_addr, lambda x:False)
class Asm_Test_16(Asm_Test):
arch_name = "x86_16"
arch_attrib = 16
ret_addr = 0x1337
def __init__(self, jitter_engine):
self.myjit = Machine(self.arch_name).jitter(jitter_engine)
self.myjit.stack_base = 0x1000
self.myjit.stack_size = 0x1000
self.myjit.init_stack()
def init_machine(self):
self.myjit.vm.add_memory_page(self.run_addr, PAGE_READ | PAGE_WRITE,
self.assembly)
self.myjit.push_uint16_t(self.ret_addr)
self.myjit.add_breakpoint(self.ret_addr, lambda x: False)
class Asm_Test(object):
def __init__(self, jitter):
self.myjit = Machine("mips32l").jitter(jitter)
self.myjit.init_stack()
def __call__(self):
self.asm()
self.run()
self.check()
def asm(self):
blocks, loc_db = parse_asm.parse_txt(mn_mips32, 'l', self.TXT,
loc_db=self.myjit.ir_arch.loc_db)
# fix shellcode addr
loc_db.set_location_offset(loc_db.get_name_location("main"), 0x0)
s = StrPatchwork()
patches = asmblock.asm_resolve_final(mn_mips32, blocks, loc_db)
for offset, raw in viewitems(patches):
s[offset] = raw
s = bytes(s)
self.assembly = s
def run(self):
run_addr = 0
self.myjit.vm.add_memory_page(
run_addr, PAGE_READ | PAGE_WRITE, self.assembly)
self.myjit.cpu.RA = 0x1337beef
self.myjit.add_breakpoint(0x1337beef, lambda x: False)
self.myjit.init_run(run_addr)
self.myjit.continue_run()
assert(self.myjit.pc == 0x1337beef)
def check(self):
raise NotImplementedError('abstract method')
from pdb import pm
parser = ArgumentParser(description="x86 32 basic Jitter")
parser.add_argument("filename", help="x86 32 shellcode filename")
parser.add_argument("-j", "--jitter",
help="Jitter engine (default is 'gcc')",
default="gcc")
args = parser.parse_args()
def code_sentinelle(jitter):
jitter.run = False
jitter.pc = 0
return True
myjit = Machine("x86_32").jitter(args.jitter)
myjit.init_stack()
data = open(args.filename, 'rb').read()
run_addr = 0x40000000
myjit.vm.add_memory_page(run_addr, PAGE_READ | PAGE_WRITE, data)
myjit.set_trace_log()
myjit.push_uint32_t(0x1337beef)
myjit.add_breakpoint(0x1337beef, code_sentinelle)
myjit.init_run(run_addr)
myjit.continue_run()
if __name__ == "__main__":
parser = ArgumentParser(description="x86 64 basic Jitter")
parser.add_argument("filename", help="x86 64 shellcode filename")
parser.add_argument("-j",
"--jitter",
help="Jitter engine (default is 'gcc')",
default="gcc")
parser.add_argument("--verbose",
"-v",
action="store_true",
help="Verbose mode")
args = parser.parse_args()
loc_db = LocationDB()
myjit = Machine("x86_64").jitter(loc_db, args.jitter)
myjit.init_stack()
with open(args.filename, 'rb') as f:
data = f.read()
run_addr = 0x40000000
myjit.vm.add_memory_page(run_addr, PAGE_READ | PAGE_WRITE, data)
if args.verbose:
myjit.set_trace_log()
myjit.push_uint64_t(0x1337beef)
myjit.add_breakpoint(0x1337beef, code_sentinelle)
# Add routine catching syscalls
myjit.add_exception_handler(EXCEPT_SYSCALL, log_syscalls)
myjit.run(run_addr)