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- Tutorial on iNFRA's Crackme No3 (Made on VB6 yuk :( )
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- First of all launch the crackme (unzip it and press ok at the first
- welcome screen). Then you see some ugly colors :), ok Enter a name,
- i entered darkl0rdsn.Remember the name must be 10chars. Now enter a
- dummy code, i entered 555666. Do not push Try me yet but enter Soft-ice
- and but a bp on multibytetowidechar (its a vb bp to find serials)
- In order to break into SI you must have this line on your winice.dat
- EXP=c:\WINDOWS\SYSTEM\MSVBVM60.DLL . If you have its ok, but u don't
- add it and then reboot.Now leave SI and press the Try me button.
- You ll poped in SI. Remember you are not i the crackme!code but in
- MSVBVM60!code, and it says break due to bpx etc...
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- Trace a few lines with F10 and when the registers change colors make
- a 'd e??' (?? = ax or bx or cx or dx etc..) on each register, without the
- quotes.If u trace about 8 or 9 lines you ll get this
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- CALL [XXXXXXXXX]
- CMP EAX,EBX
- MOV EBP-04,EAX (i dont remember if this line is correct)
- TEST EAX,EAX
- JZ XXXXXXXXX
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- Just stop at the second line (cmp eax,ebx) and doubleclick on that instrunction
- to put a bp on it.There you see that the value on the eax register has changed.
- Do a 'd eax' (without the quotes) and take a look at the data window. Trace up
- about 30 or 35 lines (with ALT+Up, or ALT+Page UP to go faster) till you see some
- text or nums in w.i.d.e.m.o.d.e, hmm i see a 7.0.5.1.0.0.0.0.2.6.4.6. Ok you
- say thats the right unlocking code. Make a BD* in SI and CTRL+D to get back
- in Windoze. Enter the code you found in the data window (do not enter the code
- in wide mode but like this --> 705100002646). Damn!, it says that we are close to
- the right code.Ok get back in SI and BE* then BC the 1st bp (multibytetowidechar),
- then getout of it and press Try me button again. AAh ok we are back at the sameplace
- (cmp eax,ebx). Now search the data window a little better. Go to the place of
- the data window where we found the code (705100002646). If you trace more carefully
- you will see this in w.i.d.e.m.o.d.e again (6.4.1.D.6.B.4.K.6.E.A.N). Well i guess
- that this looks like an unlocking code, so lets try it. Get out of SI and enter it.
- Remeber that this crackme is Case sensitive so do not forget to enter this unlocking
- code: 641D6B4K6EAN and not this-->641d6b4k6ean . Yeah we made it !!!. Program CRACKED
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- This tutorial was written by DarkL0rd/Senate (c) 2000
- Greetz goes to all Crackers...
- 23/01/2000
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