unicorn/tests/regress/hook_code_add_del.py
2015-12-23 01:44:02 +08:00

49 lines
1.4 KiB
Python
Executable file

#!/usr/bin/python
'''https://github.com/unicorn-engine/unicorn/issues/334'''
from __future__ import print_function
import regress
from unicorn import *
from unicorn.x86_const import *
ADDRESS = 0x8048000
STACK_ADDRESS = 0xffff000
STACK_SIZE = 4096
'''
31 DB xor ebx, ebx
53 push ebx
43 inc ebx
53 push ebx
6A 02 push 2
6A 66 push 66h
58 pop eax
89 E1 mov ecx, esp
CD 80 int 80h
'''
CODE = "\x31\xDB\x53\x43\x53\x6A\x02\x6A\x66\x58\x89\xE1\xCD\x80"
EP = ADDRESS + 0x54
def hook_code(mu, address, size, user_data):
print(">>> Tracing instruction at 0x%x, instruction size = %u" %(address, size))
class HookCodeAddDelTest(regress.RegressTest):
def runTest(self):
emu = Uc(UC_ARCH_X86, UC_MODE_32)
emu.mem_map(ADDRESS, 0x1000)
emu.mem_write(EP, CODE)
emu.mem_map(STACK_ADDRESS, STACK_SIZE)
emu.reg_write(UC_X86_REG_ESP, STACK_ADDRESS + STACK_SIZE)
# UC_HOOK_CODE hook will work even after deletion
emu.hook_add(UC_HOOK_CODE, hook_code, None)
emu.hook_del(UC_HOOK_CODE)
emu.emu_start(EP, EP + len(CODE), count = 3)
print("EIP: 0x%x" % emu.reg_read(UC_X86_REG_EIP))
if __name__ == '__main__':
regress.main()