downloadbrowse-Shadow-'s Shadow's Registerme

Download RegisterMe_by_Shadow.zip, 8 kb (password: crackmes.de)
Browse contents of RegisterMe_by_Shadow.zip

Anything goes with this one, I personally can't figure it out.

Clue: Uses random numbers to (attempt to) prevent keygenning =P

Objective:
Disable start and end nags, enable disabled button, rename 'Register' button to 'Registered to Shadow', change unregistered to 'Registered to Shadow!'. All of this is completed automatically when you find a correct serial. Then find a way to allow other people to activate it(loader, keygen, etc.)

Difficulty: 2 - Needs a little brain (or luck)
Platform: Windows
Language: .NET

Published: 28. Jun, 2010
Downloads: 658

Rating

Votes: 4
Crackme is quite nice.

Rate this crackme:

Send a message to -Shadow- »

View profile of -Shadow- »

Solutions

Solution by deurus, published 03. jul, 2010; download (691 kb), password: crackmes.de or browse.

deurus has rated this crackme as nothing special.

Submit your solution »

Discussion and comments

brangelito
28. Jun 2010
How would you generate keys yourself, if you're just comparing the serial to random values? :)
-Shadow-
Author
28. Jun 2010
I'm not sure of the wiseness of keygenning at this point. It'd be much more straightforward to patch or self-keygen, I think.
brangelito
28. Jun 2010
If you can insert a hook on the native GetTickCount() function (in kernel32.dll), you can retrieve the random seed. From there you easily can generate a key.

Not sure whether I'll post a solution though.
-Shadow-
Author
29. Jun 2010
Also remember that the random number is not the entirety of the serial generation process. it's just... an added bonus =P
deurus
30. Jun 2010
More easy to patch!!
-Shadow-
Author
01. Jul 2010
MORE easy. Still not really easy. For example, where is the serial verification process within the code?
deurus
03. Jul 2010
Hi shadow!
I patch the nags and the random routine
Solution sended
-Shadow-
Author
08. Jul 2010
GO deurus =P. Solution works perfectly, all criteria solved. Thanks man! However, a keygen can still be sent as a solution. Good luck!
apuromafo
18. Dec 2015
some other idea maybe taked from deurus in spanish

https://reversecodes.wordpress.com/2015/12/18/crackme-nivel-2-net/

in english the only new is the batch:


@echo off
color a
:inicio
set/p nom=put your username?=
pause
cls
echo the password is:
echo %nom%urastupiddumbidioticcrazynoob%nom%1
pause
cls
goto inicio
deurus
04. Feb, 22:38
VideoTutorial:
https://www.youtube.com/watch?v=KR3PgtDMjmg&index=5&list=PL6mApIrwvMthNYqiL8bjCc2oOlQ-yUHeY

You may leave your comment, thoughts and discuss this crackme with other reversers here.
Acting childish will not be tolerated.
HTML and such will be left as-is, so don't try.