49 lines
1.8 KiB
Python
49 lines
1.8 KiB
Python
import time
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import angr
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GREEN = "\033[92m"
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PURPLE = "\033[35m"
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RESET = "\033[0m"
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RED = "\033[31m"
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if __name__ == "__main__":
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# Загрузка бинарного файла
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print(f"{GREEN}Uploading executable file to angr...{RESET}")
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proj = angr.Project('a.exe', auto_load_libs=False)
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print(f"{GREEN}The executable has been uploaded to angr!{RESET}")
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ENTRY_POINT = 0x140001837 # Адрес функции после вызова scanf
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TARGET_ADDR = 0x140001848 # Целевой адрес, нахождение на нем означает что программа взломана
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# Создание начального состояния
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state = proj.factory.entry_state(
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addr=ENTRY_POINT,
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add_options={angr.options.ZERO_FILL_UNCONSTRAINED_REGISTERS,
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angr.options.ZERO_FILL_UNCONSTRAINED_MEMORY}
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)
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# Инициализация стека
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state.regs.rbp = 0x7ffffffffffffff
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state.regs.rsp = 0x7ffffffffffffff
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# Симуляция ввода пользователя
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input_size = 5
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input_data = state.solver.BVS('input_data', 8 * input_size)
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state.memory.store(state.regs.rbp - 0x50, input_data)
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# Установка ограничений
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for byte in input_data.chop(8):
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state.add_constraints(byte >= 0x20)
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state.add_constraints(byte <= 0x7e)
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simgr = proj.factory.simulation_manager(state)
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print(f"{GREEN}Start cracking...{RESET}")
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start_time = time.time()
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simgr.explore(find=TARGET_ADDR)
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elapsed = time.time() - start_time
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if simgr.found:
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input_data = simgr.found[0].solver.eval(input_data, cast_to=bytes)
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print(f"{GREEN}Success cracked! Input: {PURPLE}{input_data}{PURPLE}{RESET}")
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print(f"{GREEN}Pwd cracking time = {elapsed}{RESET}")
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else:
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print(f"{RED}Fail!{RESET}") |