Ollie's KeygenMe v1
| Download KeygenMe1.zip, 167 kb (password: crackmes.de) Browse contents of KeygenMe1.zip This is a simple keygenme aimed at the beginners.
Difficulty: 1 - Very easy, for newbies | Send a message to Ollie » View profile of Ollie » |
Solutions
Solution by lerie, published 14. jul, 2014; download (34 kb), password: crackmes.de or browse.
lerie has not rated this crackme yet.
Solution by anubis13, published 19. apr, 2014; download (740 kb), password: crackmes.de or browse.
anubis13 has rated this crackme as quite nice.
Discussion and comments
| andrewl.us Moderator 04. Apr 2014 | (basscode spoiler comment removed!) |
|---|---|
| basscode 05. Apr 2014 | My bad. Anyways good luck to the newbie reversers. |
| botanyaki 05. Apr 2014 | Need keygen? lol We can calculate the key with brain. very easily. Good luck guys : ) |
| Ollie Author 06. Apr 2014 | @botanyaki Yeah it's supposed to be simple so even the very beginners can reverse it! |
| 0pgm 14. Apr 2014 | Done with keygen. r-e-k-c-a-r-c ;) |
| new_man 14. Apr 2014 | it's very easy just reverse your username and put - after each char so if username is eli the password is i-l-e |
| lottex 15. Apr 2014 | LoL I cant solve it :D I have no idea what im doing what so ever :( I think ive located the string that says "Not correct" But I dont know what to do now :( |
| new_man 16. Apr 2014 | 1 min to solve and 1 to write a keygen http://codepad.org/CaxeQnGW |
| xiayuanzhong 17. Apr 2014 | XD Newbie here, finding a huge amount of ...junk bytes? |
| evaboy 27. Apr 2014 | This should be level 2 task. Am a newbie, l don't even understand how the inputs are processed though l know the segment that does that. Anyway, nice crack me. |
| @BOT 02. May 2014 | i am a newbie....can anybody help me from where to start learning reverse engineering...since i am very much interested in this stuff.... thanks in advance |
| evaboy 02. May 2014 | @BOT: You are at the right place. However, u ought to have ASSEMBLY knowledge, search for LENA101 tutorial on google and download it. Google Legend of randon or so and enter the site, you will see large materials and tutorials. And if you want to advance to keygen, you will have to have any programming language knowledge enough to code keygen. Youtube can also do you good. But bear in mind that this is a hard and boring task that needs enough patients for. I wish you success. |
| Borgiman 16. May 2014 | Nice keygenme. Something broke while debugging for me... as soon as i enter a username it says "correct" without even asking for a key - and this loops forever and it spams "correct". but if i start the exe alone, it works fine debugging protection? |
| Ollie Author 19. May 2014 | Borgiman, there's no special debugging protection going on. What debugger are you using? |
| proximation22 27. May 2014 | can anybody know, what is the best software to hack facebook easily guys?... i'm a newbie here... .i would like to have my 2nd achievemnts in hacking... simple hacking only :) |
| B3G1NN3R 31. May 2014 | i know how to crack but how to find relation between the username and keygen is hard for me however i know much of c & C++ i can make keygen if i know the algo... |
| Borgiman 31. May 2014 | @Ollie: i'm using ollydbg - i'll try again later, it might've been just some wierd constellation |
| grayfox 08. Jun 2014 | This is a very easy one. Just keep an eye on the registers and you'll get an idea of what's going on... However, to get in touch with a debugger/disassembler for the first time, it's okay. Albeit following the algorithm in the ASM is confusing at first glance. |
| kaoyange 11. Jun 2014 | I have the same problem with evaboy although I know how to generate the key according the User using the Ollydbg.But in my opinion,reverse engineering is not so about this,we should know the author how to write the programe and what library function he used through reverse analysis.So,can you tell me how you receive inputs and process inputs?I'm so confused.Thank you very much |
| Ollie Author 11. Jun 2014 | kaoyange, It's written in Visual C++, and it uses the std libraries to handle io and other stuff. |
| kaoyange 12. Jun 2014 | @Ollie Thank you,But why does OD can't analyze std libraries such as cin or cout in your keygenme.I used C++ std library cin write a program to test it,OD can distinguish it.Have you thought about this problem? |
| Mattstersplat 16. Jun 2014 | Yay! This was the first one I've cracked by myself :D I really like the crackme that you very much for making it :D |
| bubuchenko 23. Jun 2014 | Crack it for what? You can just enter one single digit character for each entry and it'll be accepted. C# Keygen? Random R = new random(); Console.WriteLine(R.Next(0, 9)); Console.WriteLine(R.Next(0, 9)); |
| sadiqbj 25. Jun 2014 | how can i upload my solution |
| zairon Moderator 25. Jun 2014 | There a "Submit your solution" link few lines above the "Discussions and comments" area |
| M$A!_ 05. Jul 2014 | WTF? I did not even begin to debug it ?! I just entered key + pass and it was correct O____O |
| thebigben 11. Aug 2014 | Okay, but why does it connect to 64.4.10.33:123? |
| Ollie Author 28. Aug 2014 | thebigben, there is no networking code in the application. If you really want to, I can give you the source code but I can promise it will not connect to any site or computer. |
| SeratorMile 21. Jul 2015 | i guessed the key by accident :) |
| evaboy 25. Jul 2015 | l just typed u as the username and u as the key, just to see "Correct! Now write a keygen. :)" Could there be a bug in the code? |
| Ollie Author 27. Jul 2015 | @evaboy, it's not a bug, just bad design I guess haha. |
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.