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Analysis PE file or Shellcode

Python 100.00%

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dutas's Issues

Unmapped error with simple shellcode

Hello there,

I created a simple shellcode file,

msfvenom -f raw -p windows/exec CMD=calc -o shellcode

And received this,

%> ./UniAna.py -s shellcode
Emulate i386 code
Emulating...
=======Creating Report=======
ERROR: Invalid memory read (UC_ERR_READ_UNMAPPED)

segv on run

Hi,
I've prepared Dutas Dockerfile with capstone & unicorn based on Ubuntu 16.04. Running UniAna under Python 2.7.11 results in segmentation fault. It looks more like an unicorn fault, but You might want to investigate it anyway.

(Pdb) p UC_X86_REG_FS, FS_0
(32, 4096)

(Pdb) list

403     def simulator_initialisation(mu):
404         try:
405             # init FS
406             fss = x86_OS().init_FS()
407             mu.mem_write(FS_0, fss)
408 B->         mu.reg_write(UC_X86_REG_FS, FS_0)
409             # load dll
410             advapi32 = dll_loader("advapi32.dll", DLL_BASE)
411             mu.mem_write(DLL_BASE, advapi32)
412             kernel32_base = DLL_BASE + len(advapi32)
413             kernel32 = dll_loader("kernel32.dll", kernel32_base)

(Pdb) bt

  /usr/lib/python2.7/bdb.py(400)run()
-> exec cmd in globals, locals
  <string>(1)<module>()
  /Dutas/UniAna.py(493)<module>()
-> main(sys.argv[1:])
  /Dutas/UniAna.py(471)main()
-> simulator_initialisation(mu)
> /Dutas/UniAna.py(408)simulator_initialisation()
-> mu.reg_write(UC_X86_REG_FS, FS_0)

(Pdb) next
Segmentation fault (core dumped)

Where can I find the source of DLLs?

Thanks for providing the excellent project, I wonder where I can find the source of DLLs? Were they written by yourself or from other projects?

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