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[unpackme] unpackme


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Posted (edited)

this is a small easy unpackme

good luck on unpacking it and tell me your opinion on it

:)

unpackme.rar

Edited by mm10121991
Posted

good work

well done raham.

Posted (edited)

Here ya go:

Clean dump everything returned to the original code and encryption removed as well as the macro.

http://www.2shared.c...TA7j2/dump.html

No keygen I'm not that kind of guy. Though one could easily rip the algo.

Was quite fun, not hard but it has everything for someone that wants to get introduced into unpacking. Simple redirected API's, a macro, obfuscated oep.

Not so much for the hardcore unpacker though.

Found it over @ arteam.. but seems raham beat me to it doing a clean unpack. ;)

regards,

q

dump.rar

Edited by Teddy Rogers
Attached file...
Posted

hey Raham\quosego i just unpack but how you fully remove the crypt by hand or there away to auto do it?:o

Posted

Well the oep obfuscation is only like 10 instructions interlaced with jumps. So that shouldn't be hard, simple manual copy paste. The other macro is a question of filtering out the useless functions and only retaining the original code which are only two/three instructions. It's obvious the PE header checking can be removed and then just dump the decrypted code to the exe.

  • Like 1
Posted

thank you for tip Mr.quosego

Posted

nice work quosego :)

  • 4 months later...
tarequl.hassan
Posted

does any one have a tutorial on this unpackme?


Posted (edited)

1. For me the serial was: 484830


2. About the stolen OEP instructions was about 10 as mr. Q say :


 


 

PUSH EBP

MOV EBP,ESP

PUSH -0x1

PUSH 0x4050C0

PUSH 0x402678

MOV EAX,DWORD PTR FS:[0]

PUSH EAX

MOV DWORD PTR FS:[0],ESP

SUB ESP,0x58

PUSH 0x401242

 

Then i have 2 invalid imports:


GetDlgItemTextA

MessageBoxA

 

Short video attached.

The story.....rar

Edited by GIV
tarequl.hassan
Posted

Thanks GIV but i still could not unpack the exe. How to do that?


Posted

What you done so far and what is not working?


tarequl.hassan
Posted

At last i could unpacked. Tutorial added.


Many thanks to GIV  for his help. 


Tutorial.rar

  • 2 weeks later...
Posted

Dumped, Size Reduced and Keygenned (well, really, I've ripped the algo :P). This was funny to solve :victory:


 


Solved.7z

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