downloadbrowseSynok's 17 Byte Baby - Synok

Download 17b_CrackMe_Synok.zip, 770 b (password: crackmes.de)
Browse contents of 17b_CrackMe_Synok.zip

Simple PatchMe By Synok.

What? - Patch the CrackMe.
How? - No strings only to reduce size. If crash, try again.
Goal? - Patch it so it wont crash.
Size? - 17 bytes only and it's NOT Packed.
Encr? - WONT work with Olly. Need W32Dasm, and a hex editor. ;)
Hard? - Because of the debuggable disfunctions, and hex editing
I would say this is for the cracker who wants a
challenge, but it still can be done with just some
bytechanges.

Have fun :)

- Synok -

Difficulty: 2 - Needs a little brain (or luck)
Platform: DOS
Language: Assembler

Published: 10. Jan, 2009
Downloads: 359

Rating

Votes: 4
Crackme is nothing special.

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Solutions

Solution by br0ken, published 24. jan, 2009; download (2200 kb), password: crackmes.de or browse.

br0ken has not rated this crackme yet.

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Discussion and comments

DigitalAcid
10. Jan 2009		So, you want us to open it and then it needs to stay open ?
I don't really understand what our goal is...
andrewl.us
Moderator
10. Jan 2009		"Goal? - Patch it so it wont crash."

Doesn't crash on this machine (Vista).
xylitol
10. Jan 2009		crash on my vista
andrewl.us
Moderator
11. Jan 2009		Doesn't crash on my XP machine either. Running under debugger catches nothing funny, it seems.

ModLoad: 76b40000 76b6d000 C:\WINDOWS\system32\WINMM.DLL
ModLoad: 5f160000 5f167000 C:\WINDOWS\system32\NTVDMD.DLL
Loading [C:\WINDOWS\system32\ntio.sys]
ModLoad: 769c0000 76a73000 C:\WINDOWS\system32\Userenv.dll
ModLoad: 77c10000 77c68000 C:\WINDOWS\system32\msvcrt.dll
Loading [C:\WINDOWS\SYSTEM32\HIMEM.SYS]
Loading [C:\WINDOWS\SYSTEM32\COMMAND.COM]
ModLoad: 769c0000 76a73000 C:\WINDOWS\system32\Userenv.dll
ModLoad: 77c10000 77c68000 C:\WINDOWS\system32\msvcrt.dll
ModLoad: 769c0000 76a73000 C:\WINDOWS\system32\Userenv.dll
ModLoad: 77c10000 77c68000 C:\WINDOWS\system32\msvcrt.dll
ModLoad: 769c0000 76a73000 C:\WINDOWS\system32\Userenv.dll
ModLoad: 77c10000 77c68000 C:\WINDOWS\system32\msvcrt.dll
Loading [C:\WINDOWS\system32\MSCDEXNT.EXE]
Loading [C:\WINDOWS\system32\REDIR.EXE]
Loading [C:\WINDOWS\system32\DOSX.EXE]
Loading [C:\DOCUME~1\NAME\DESKTOP\17BYTE\17BYTE~1.EXE]
Freeing [C:\DOCUME~1\NAME\DESKTOP\17BYTE\17BYTE~1.EXE]
Haykuro
11. Jan 2009		solved :)
solution submitted, its a very interesting crackme :)
Synok
Author
11. Jan 2009		Yeah the purpose was kinda hard to explain but when you open the CrackMe up, it closes down again. Your goal: Patch it so it Wont close down. :) Simple stuff.
simonzack
Moderator
13. Jan 2009		you mean infinite loop?
DigitalAcid
14. Jan 2009		Yep. There is not really another way to let it stay open ;).
Synok
Author
14. Jan 2009		Yes.. Just patch it to it's infinite loop..

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