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Latest Articles

_Apps 1 to 6_

Arrow Image An article on application cracking challenges 1 to 6, this article may contain major hints/spoilers



Hello there, this is my article on how to beat application cracking challenges 1 to 6, part two, Apps 7 - 12 will be released soon after this one.
Please rate and comment on this article, as this took a long time to write, and was written so others can get experienced at app cracking.
Apps are meant to help people with changing the code and reverse engineering.
In this article, as you are supposed to get the pass for hbh, if you find the password by anyway possible and it doesn't work on hbh, try it on the app.

Warning: this article may contain spoilers.

_App 1_
This one is very straight forward, if you think back to the basics where you needed a text editor like notepad, that was handy, yes? Well, it's going to be handy again!
Once you have downloaded the app and unzipped it, open it in notepad (File > Open > All Files). If you scan through the readable ascii in there you should be able to find a string that contains the password.

_App 2_
This app is made in flash, and has been compiled. But, as flash can be easily de-compiled, we can get the password from it very easily. There is a tool on this site in the downloads section called "asvdemo" this is a flash de-compiler. Once you have downloaded and installed you can navigate to the location of app2.exe and then decompile, you should see the password.

_App 3_
This one you will need a hex editor for, any one will do, just google for one. Once you have app3.exe downloaded and a hex editor downloaded, edit the hex code of the app, for those who don't know, hex editors show the ascii and hex strings. When you've opened it, you need to find the string that says "ineedalife" you need to type over that and replace it with what "icrackedit". Now, all that's left to do is to save it, and then run it.

_App 4_
For this application, you will need a program called Olly Debugger, it is available here: http://www.ollydbg.de/odbg110.zip
After you have downloaded Olly, open the app up, in the main window, the window titled CPU, right click, then hit "Search for > All referenced text strings". This will show you all the ascii and unicode strings. Scroll down untill you see something that looks like it could be or could have something to do with the password.

_App 5_
Again, this one can be done with a hex editor, like app3 you have to edit the contents of the box, when you open the app up there is a serial made out of x's, we need to change these x's to the real serial. Inside the hex you should be able to see the real code. If you save it and run, you will realise that you can't click the button as it disables when you hover above it. So, it's back to the hex editor, we want to make it so we can do an alt+something to the submit button, so if you find the label of the button, Enter or something, change it in the hex editor to say &nter, the &n will make it so if you press alt+n, it will check the code.

_App 6_
Alright, this is the final app in my article. Once again this app can be completed in Olly Debugger, it's kind of like app4 where you search for all referenced text strings. You just have to look through the text strings until you see something that looks like a password, it would normally be near the part in the strings where it has the ascii string for things that are in the app.

Thanks for reading, I hope this article has helped you, part two will be released as soon as I write it.

Comments

the_flashon May 08 2006 - 21:29:06
Another awesome article dude. congrats
system_meltdownon May 08 2006 - 21:49:15
Why thank you flash Grin
cubeman372on May 08 2006 - 21:59:27
Whooo Attack of the _'s! Thanks for the help system!
wolfmankurdon May 08 2006 - 22:16:45
Shock you are gna give me a run for my money on articles if you carry on like this!!!
HopelessRomanticon May 09 2006 - 00:23:35
Thanks, I really needed a "push in the right direction" on the application challenges because I was lost. Great article.
mozzeron May 09 2006 - 07:17:33
Hmmm... whats happened to the rating system?
mastergameron May 09 2006 - 16:55:35
Great article system, you rock!
godon May 09 2006 - 17:48:25
B) koolage like always
LiveFastDieFunon May 09 2006 - 19:08:24
These last few articles you've made are some of the best on HBH.
system_meltdownon May 09 2006 - 19:08:45
Thanks man Grin
drew_m_noelon July 22 2006 - 21:57:51
Shock it says "91%", but no1 voted for anything else, anywho, thanx a trillion system, u saved me on App 4. i read the others and kicked myself. i was did the others the hard way Grin
Dual Cortexon January 06 2007 - 04:17:16
I was a dumbass for #1, I kept trying to look for the actual password for the program, which is a bunch of letters and symbols. I did see the password but kept plugging it in the app (instead of HERE) and obviously it didn't work... somehow I spotted a string with letters, symbols, etc. and it was the app's password which subsequently showed the password I had tried plugging in the app before; i felt like a dumbass.
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