TheLegendOfRandom.com

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2013-04-26T16:12:54+00:00

never late to learn
Cracmke4_patch.zip

Statistics: Posted by manho — Fri Apr 26, 2013 4:12 pm

Challenges • Re: Second Challenge: Patchme1 by R4ndom

2013-03-05T12:55:37+00:00

Hi People, I know that am Kind of Late But Here is my Patch.
http://www.mediafire.com/?mjwhfgvxt8cmf8a[url][/url]

Statistics: Posted by Ugo4brain — Tue Mar 05, 2013 12:55 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-30T08:46:25+00:00

Here is my solution, although it is working as it should when i exit the program i get it crashed (don't know way.)
Great tutorials, Keep up the good work.

Cracmke4final.zip

Statistics: Posted by Hanan — Sun Sep 30, 2012 8:46 am

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-29T00:46:44+00:00

Code:: for (int i = 9; i >= 0; i--) { szKey[i] = szUserName[i] ^ 0x9; } *szUserName = *szUserName ^ 0x9; *szKey = *szUserName;

the szKey is passwrod!

Statistics: Posted by robin — Sat Sep 29, 2012 12:46 am

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-28T14:45:25+00:00

BINGO!!!

Statistics: Posted by random — Fri Sep 28, 2012 2:45 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-28T13:08:15+00:00

Saduff, thanks a lot for your solution......I was desperately looking for that clipboard thinggy .....

Statistics: Posted by hawaii67 — Fri Sep 28, 2012 1:08 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-28T13:04:15+00:00

Okay, as you wish:
http://www.mediafire.com/?383f2px2k8zpwh9

You think this is better? I think otherwise.

Statistics: Posted by Saduff — Fri Sep 28, 2012 1:04 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-27T23:30:24+00:00

"...Then, after entering the proper username/password, the target should display the goodboy."

Statistics: Posted by random — Thu Sep 27, 2012 11:30 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-27T23:25:33+00:00

The solution is a self-keygen. It's not expected of a self-keygen for the app itself to be working.
You use the self-keygen to get a key and then use the key with the original binary.
Reason I bypassed all the checks is because I didn't want there to be a need to enter a bogus key for it to work.
And if password is left empty, crackme will always display goodboy. Seemed weird to display the key, followed by a goodboy.

Statistics: Posted by Saduff — Thu Sep 27, 2012 11:25 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-27T20:53:59+00:00

XorKing: Congratulations. And the password is copied into the clipboard. Nice going. (Though it does appear that you re-created the entire encryption algorithm. Is that correct? You should not need to do that unless you are making an actual keygen

Saduff: You get extra credit for copying the password in to the clipboard, but unfortunately when you try this it does not display the goodboy

Hawaii67: Same as Saduff

Statistics: Posted by random — Thu Sep 27, 2012 8:53 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-27T17:43:03+00:00

My solution:
http://www.mediafire.com/?l941t7jxffx4870

Statistics: Posted by Saduff — Thu Sep 27, 2012 5:43 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-27T15:58:54+00:00

I am trying to make this more than just a "tutorial download site", more of an interactive learning site. So your post means a lot to me

Statistics: Posted by random — Thu Sep 27, 2012 3:58 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-27T14:52:18+00:00

This was a fun challenge. I managed to figure it out and come up with a similar solution to those posted here!

Thanks for the challenges, tuts, and hard work, Random.

I'm really enjoying the tuts on keygenning and looking forward to more!

Statistics: Posted by them123 — Thu Sep 27, 2012 2:52 pm

Challenges • Re: Seventh Challenge:- Crackme #4: Use a code cave

2012-09-27T13:46:26+00:00

My solution, w/o copying to clipboard...

Cracmke4_4.zip

Statistics: Posted by hawaii67 — Thu Sep 27, 2012 1:46 pm

Challenges • Seventh Challenge:- Crackme #4: Use a code cave

2012-09-27T11:34:26+00:00

Crackme #4: Use a code cave to display the correct password.

Is it correct...?
crackme4done.zip

Statistics: Posted by XorKing — Thu Sep 27, 2012 11:34 am