seVeb's crackme1
| Download crackme01.tar.gz, 5 kb This is my first submission, find the secret number and explain how you solved it in a short tutorial. The main goal is to find out what the secret number is, not to crack it to show good boy.
Difficulty: 2 - Needs a little brain (or luck) | RatingWaiting for at least 3 votes View profile of seVeb » |
Solutions
Solution by exe.surgeon, published 26. mar, 2014; download (3 kb), password: crackmes.de or browse.
exe.surgeon has rated this crackme as nothing special.
Solution by xtofs1, published 22. jan, 2014; download (3 kb), password: crackmes.de or browse.
xtofs1 has not rated this crackme yet.
Discussion and comments
| molnarg 04. Jan 2014 | Nice beginner crackme, I enjoyed solving it! (Warning: at the time of writing, the 32bit version did not work as intended, but the 64bit version did) |
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| xtofs1 08. Jan 2014 | Please remove the 32 bit version I also had problems with it ... |
| 0xe7,0x1e 10. Jan 2014 | Is the 32 bit version broken? I've been trying to solve it for a while, got close but it seems that when my number is converted its no longer null terminated therefore doesn't match the string that its checked against... |
| 0xe7,0x1e 10. Jan 2014 | OK, I'd solved it ages ago, yes the 32bit version is broken! :-/ |
| xtofs1 10. Jan 2014 | I know it is super annoying ! |
| tjon.lichy 29. Jan 2014 | Any tips for a complete newcomer about how one should approach things like this? I fired up my gdb, got some breakpoints assigned and figured out what's going to scanf(). After that I simply got stuck and wonder am I approaching this from a wrong angle (ie. should I be doing something else than reading disassembly output of gdb)? |
| blankwall 10. Feb 2014 | Tips would be to look at the big picture. Where is the success call? How many ways can you get there? |
| seVeb Author 22. Feb 2014 | I am very sorry for the broken version, I am new to C and did not test it throughly, sorry for the inconvenience! |
| GDBA 03. Apr 2014 | Solved my first crackme ^.^ Thank you! I used IDA free and the 32bit version. |
| acruel 26. Jul 2015 | That's not too evil. I enjoyed it. Thanks! |
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