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Update eflags_nosync.c Update sigill2.c Update ro_mem_test.c Update ro_mem_test.c Update nr_mem_test.c Update mem_fuzz.c Update mem_double_unmap.c Update emu_stop_in_hook_overrun.c Update eflags_nosync.c remove unused Update Makefile Update Makefile Update Makefile Update Makefile Update Makefile Update Makefile Update Makefile Update mem_64_c.c Update mem_64_c.c Update Makefile Update Makefile Update Makefile Update Makefile Update Makefile Update Makefile Update .travis.yml try android ndk build Update unicorn.py Update unicorn.py Update Makefile Update unicorn.py Update unicorn.py remove an untrue comment if a dll/so/dylib gets loaded at runtime is dependent on many different factors, primarily the LD/DYLD paths. Those do not always include the current working directory Update Makefile Update .appveyor.yml Update .travis.yml Update Makefile Update .appveyor.yml Fix bad sample
120 lines
3.8 KiB
Python
Executable File
120 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python
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# Sample code for X86 of Unicorn. Nguyen Anh Quynh <aquynh@gmail.com>
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from __future__ import print_function
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from unicorn import *
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from unicorn.x86_const import *
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X86_CODE32 = b"\xeb\x19\x31\xc0\x31\xdb\x31\xd2\x31\xc9\xb0\x04\xb3\x01\x59\xb2\x05\xcd\x80\x31\xc0\xb0\x01\x31\xdb\xcd\x80\xe8\xe2\xff\xff\xff\x68\x65\x6c\x6c\x6f"
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X86_CODE32_SELF = b"\xeb\x1c\x5a\x89\xd6\x8b\x02\x66\x3d\xca\x7d\x75\x06\x66\x05\x03\x03\x89\x02\xfe\xc2\x3d\x41\x41\x41\x41\x75\xe9\xff\xe6\xe8\xdf\xff\xff\xff\x31\xd2\x6a\x0b\x58\x99\x52\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x52\x53\x89\xe1\xca\x7d\x41\x41\x41\x41\x41\x41\x41\x41"
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X86_CODE64 = "\x48\x31\xff\x57\x57\x5e\x5a\x48\xbf\x2f\x2f\x62\x69\x6e\x2f\x73\x68\x48\xc1\xef\x08\x57\x54\x5f\x6a\x3b\x58\x0f\x05"
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# memory address where emulation starts
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ADDRESS = 0x1000000
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# callback for tracing instructions
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def hook_code(uc, address, size, user_data):
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print(">>> Tracing instruction at 0x%x, instruction size = 0x%x" %(address, size))
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# read this instruction code from memory
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tmp = uc.mem_read(address, size)
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print("*** EIP = %x *** :" %(address), end="")
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for i in tmp:
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print(" %02x" %i, end="")
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print("")
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# callback for tracing basic blocks
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def hook_block(uc, address, size, user_data):
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print(">>> Tracing basic block at 0x%x, block size = 0x%x" %(address, size))
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# callback for tracing Linux interrupt
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def hook_intr(uc, intno, user_data):
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# only handle Linux syscall
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if intno != 0x80:
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print("got interrupt %x ???" %intno);
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uc.emu_stop()
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return
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eax = uc.reg_read(UC_X86_REG_EAX)
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eip = uc.reg_read(UC_X86_REG_EIP)
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if eax == 1: # sys_exit
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print(">>> 0x%x: interrupt 0x%x, EAX = 0x%x" %(eip, intno, eax))
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uc.emu_stop()
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elif eax == 4: # sys_write
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# ECX = buffer address
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ecx = uc.reg_read(UC_X86_REG_ECX)
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# EDX = buffer size
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edx = uc.reg_read(UC_X86_REG_EDX)
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try:
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buf = uc.mem_read(ecx, edx)
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print(">>> 0x%x: interrupt 0x%x, SYS_WRITE. buffer = 0x%x, size = %u, content = " \
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%(eip, intno, ecx, edx), end="")
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for i in buf:
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print("%c" %i, end="")
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print("")
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except UcError as e:
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print(">>> 0x%x: interrupt 0x%x, SYS_WRITE. buffer = 0x%x, size = %u, content = <unknown>\n" \
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%(eip, intno, ecx, edx))
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else:
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print(">>> 0x%x: interrupt 0x%x, EAX = 0x%x" %(eip, intno, eax))
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def hook_syscall(mu, user_data):
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rax = mu.reg_read(UC_X86_REG_RAX)
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print(">>> got SYSCALL with RAX = 0x%x" %(rax))
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mu.emu_stop()
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# Test X86 32 bit
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def test_i386(mode, code):
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print("Emulate x86 code")
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try:
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# Initialize emulator
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mu = Uc(UC_ARCH_X86, mode)
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# map 2MB memory for this emulation
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mu.mem_map(ADDRESS, 2 * 1024 * 1024)
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# write machine code to be emulated to memory
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mu.mem_write(ADDRESS, code)
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# initialize stack
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mu.reg_write(UC_X86_REG_ESP, ADDRESS + 0x200000)
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# tracing all basic blocks with customized callback
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mu.hook_add(UC_HOOK_BLOCK, hook_block)
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# tracing all instructions with customized callback
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mu.hook_add(UC_HOOK_CODE, hook_code)
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# handle interrupt ourself
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mu.hook_add(UC_HOOK_INTR, hook_intr)
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# handle SYSCALL
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mu.hook_add(UC_HOOK_INSN, hook_syscall, None, 1, 0, UC_X86_INS_SYSCALL)
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# emulate machine code in infinite time
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mu.emu_start(ADDRESS, ADDRESS + len(code))
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# now print out some registers
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print(">>> Emulation done")
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except UcError as e:
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print("ERROR: %s" % e)
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if __name__ == '__main__':
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test_i386(UC_MODE_32, X86_CODE32_SELF)
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print("=" * 20)
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test_i386(UC_MODE_32, X86_CODE32)
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print("=" * 20)
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test_i386(UC_MODE_64, X86_CODE64) # FIXME
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