[crackme] Crackme #2 : Zorke

[zorke]

Made this crackme and hope you guys enjoy it.

Rules :

+ No patching

+ Create a keygen

Notes :

+ If you want - write a tutorial and explanation of how the debugging checks work

anyway... enjoy

p.s : i'd like to know you opinion on how hard this is out of 10.

thanks !

zke-cm#2.rar

[Teddy Rogers]

The [crackme] tag has been added to your topic title.

Please remember to follow and adhere to the topic title format - thankyou!

[This is an automated reply]

[NewHitman]

Hi , good job there

actually it wasn't that hard I won't give you a number so I won't disappoint you naah I'm just kedding the idea of your challenge was a little bit different anyway here is my Solution (it seems that the source code included in my favorite language ever )

Notes :

+ If you want - write a tutorial and explanation of how the debugging checks work

BTW I just reached the OEP and dumped it and everything was okay and the way you used to generate the Good Boy was cool

zorke_CM#2_keygen_NH.rar

Edited November 1, 2012 by NewHitman

[C0M3ND4D0R]

small routine:

	 MOV EAX,EAX
	 XOR EAX,0DEADC0DEh
	 SUB EAX,2
	 INC EAX
	 NOT EAX
	 MOV ECX,0CA1CBADh
	 ROL ECX,010h
	 SHL ECX,2
	 ADD EAX,ECX
	 NOT EAX
	 ROR EAX,2	 MOV EDX,EAX
	 POP EAX
	 CMP EAX,EDX
	 JNZ @zke-cm#2_00401207			 ;<= Bad Boy / Good Boy

C0M3ND4D0R

1811833750

Hug

[NewHitman]

COM3ND4D0R I think you made a mistake since he used GetDlgItemInt function to retrieve the text from the first field so the first field must contain only numbers so each name uses non-numeric chars will have the same code as the one for your name.

if I am wrong tell me

we will wait till Zorke comes and explain the point

Edited November 1, 2012 by NewHitman

[C0M3ND4D0R]

COM3ND4D0R I think you made a mistake since he used GetDlgItemInt function to retrieve the text from the first field so the first field must contain only numbers so each name uses non-numeric chars will have the same code as the one for your name.

if I am wrong tell me

we will wait till Zorke comes and explain the point

Actually contains an error in the code.....you can leave this blank and use my serial that you will have the positive result.

Or try the serial with your Nick or any other, will also function.

Hug

[NewHitman]

Actually contains an error in the code.....you can leave this blank and use my serial that you will have the positive result.

Or try the serial with your Nick or any other, will also function.

Hug

But if you use an empty name you or a name that uses non-numeric chars you will have the same code ,but that doesn't mean that the first field is the name ,he didn't even label the text fields

Edited November 2, 2012 by NewHitman

[C0M3ND4D0R]

But if you use an empty name you or a name that uses non-numeric chars you will have the same code ,but that doesn't mean that the first field is the name ,he didn't even label the text fields

Brother

the name was just an example, I understand what you mean......just want to say that the routine is the same

changes nothing, either name or number

I will so do a numeric example to do away with doubts.

123456789

2865788625

I think we are not talking the same language....

Relax, brother.....Hug

Edited November 2, 2012 by C0M3ND4D0R

[NewHitman]

LOL

Bro check out my keygen and you will certainly understand what I mean