mucki's mucki's protector
| Download mp.zip, 20 kb (password: crackmes.de) Browse contents of mp.zip Welcome to a new challange by mucki!
Difficulty: 2 - Needs a little brain (or luck) | Send a message to mucki » View profile of mucki » |
Solutions
Solution by profdracula, published 18. apr, 2007; download (5 kb), password: crackmes.de or browse.
profdracula has rated this crackme as nothing special.
Solution by El_PuPaZzArO, published 18. apr, 2007; download (990 b), password: crackmes.de or browse.
El_PuPaZzArO has not rated this crackme yet.
Discussion and comments
| TFB 10. Apr 2007 | Nice :) But its kind of easy... |
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| Ox87k 11. Apr 2007 | the src of a new packer is always good XD good challenge mucki, you are always original.. |
| deroko 11. Apr 2007 | unpacker is not needed :) Only simple code that should decrypt code section. If you want unpacker I can write it, it ain't hard :) Anyway good to see that more unpackmes are showing up. I'm really bored of various keygenmes... |
| mucki Author 11. Apr 2007 | I know unpacking is not really a challange. maybe the source is a bit more interesting - so try to solve it :) |
| Ox87k 11. Apr 2007 | i tried to protect some appz made by me (for tests) in C and asm but they didn't work. Why? I used your packer original and unpacked but same results. Is it normal? |
| cobrasniper555 12. Apr 2007 | Now...do we upload a tutorial for the password to the source.zip? Or is it in the unpacked exe somewhere? Because I can't find it, anyhow, mucki, I've made an unpacking script in MASM, if you're interested. |
| cobrasniper555 12. Apr 2007 | Nevermind, it's faulty. |
| mucki Author 12. Apr 2007 | Yes you are right, it's a bit buggy. The problem is that my unpacker is sometimes not allowed to execute this command: mov byte ptr[esi],al Does anyone what's wrong? I have no idea :( |
| deroko 12. Apr 2007 | chage permissions on code section. |
| mucki Author 12. Apr 2007 | to get the protected programs work you have to enable the writable flag in the .text section. I will fix the protector soon. |
| zairon Moderator 12. Apr 2007 | [Crackme updated] |
| Ox87k 12. Apr 2007 | well done but now the zip file isn't protected anymore! Mucki!!!! :) |
| mucki Author 13. Apr 2007 | Oh dear - I forgot. Sorry Ox87k. |
| hardcoder 15. Apr 2007 | again, It's not working |
| mucki Author 15. Apr 2007 | @hardcoder: which application? |
| Nacho_dj 15. Apr 2007 | Hello mucki: I do not know which could be the reason, but after protecting a Delphi compiled target, it cannot be run. When debugged, I find that the EP leads you to an area full of zeroes, in last section... Is this a bug? Anyway, thanks for your work! Nacho_dj |
| mucki Author 15. Apr 2007 | I'm not sure but I guess the reason is that there is no space behind the last section. (my protector doesn't create an own section, it only expands the last section for the decrypter code) |
| hardcoder 15. Apr 2007 | exactly that could be the reason.. Hoping to get a fixed version..... |
| Nacho_dj 15. Apr 2007 | Yep, it expands last section, but in this Delphi's case I have found that it only expands Virtual Size whilst Raw Size remains the same as before protecting the target. Maybe this could be the reason of the zeroes there... |
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