downloadbrowseyo-mismo's CrackMe V1

Download CrackMe_V1_ASM_-_Yo-Mismo.zip, 6 kb (password: crackmes.de)
Browse contents of CrackMe_V1_ASM_-_Yo-Mismo.zip

Simple spanish crackme written in NASM.

About:
Language: NASM
Difficulty: 1 / 10 - Just started (Newbies only)
Packed: Yes, UPX.
Password Source: Serial valid for user Alguien.
Objective: Keygen and tutorial.

Rules:
-No SelfKeygen
-No patch
-Unpack
-Valid Keygen
-Enjoy it

Have a nice day

Difficulty: 1 - Very easy, for newbies
Platform: Windows
Language: Assembler

Published: 12. Apr, 2011
Downloads: 1374

Rating

Votes: 3
Crackme is nothing special.

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Solutions

Solution by nu.orpse, published 28. apr, 2011; download (9 kb), password: crackmes.de or browse.

nu.orpse has rated this crackme as quite nice.

Solution by elicn, published 28. apr, 2011; download (2 kb), password: crackmes.de or browse.

elicn has not rated this crackme yet.

Solution by gehstock, published 08. feb, 2012; download (846 kb), password: crackmes.de or browse.

gehstock has not rated this crackme yet.

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Discussion and comments

Mayhem
12. Apr 2011
"Packed: Yes, UPX."

"Can I pack/protect my Crackme with a commercial protector even if it is free?
No. The only packers/protectors allowed are those that you wrote yourself."


Is this rule even enforced anymore? Kinda answered my own question there but w/e.
Mayhem
12. Apr 2011
Disregard my previous comment, I see the exe in the zip isn't packed.
Xspider
14. Apr 2011
something either it's a bug or something else i don't wanna say ^^ at 00401317 you did a CMP ECX,4 that means that the length of calculated serial should be 4 and then after the end of that loop, you did a lstrlen so that we already know that the length of calculated serial is 4!! you've wasted three lines x)
Xspider
14. Apr 2011
okey your crackme is buggy!! i entered serial for Alguien which is Alguien3891878852 but wasn't accepted in the crackme, but in the source.rar it was accepted..
yo-mismo
Author
14. Apr 2011
Is not a bug, only 4 first bytes are calculated... I don't know what is the problem with the user Alguien, but there is a bug...

Well done, gehstock!
snq-
15. Apr 2011
>> I don't know what is the problem with the user Alguien

buffer size: 16 versus 7 ("Alguien") + 10 (the decimal string representation of the calculated checksum 0xE7F95BC4 ("3891878852") + 1 ("\0")
yo-mismo
Author
15. Apr 2011
Nice tip, sng, i only was tested it with 5 char's string for username...

Wait second version
Mayhem
17. Apr 2011
@Reetus
Self Keygen means patching the app so it tells you the correct serial instead of validating the one you enter.
yo-mismo
Author
18. Apr 2011
@vlad648 yes, that's a bug, see the sng-'s comment.
aldofavorito
19. Apr 2011
guys I apply two jumps to another address and I turned, but not to get valid serial crak and user

chicos yo aplique dos saltos a otra direccion y me resulto, pero no se crak para sacar serial valido y usuario
Coccinell
19. Apr 2011
correction : name must be 4 or 5 chars.
yo-mismo
Author
19. Apr 2011
If the username have more than 5 char's, the crackme can turn crazy... A little bug

Si el usuario contiene más de 5 caracteres, el crackme se volverá loco... Un pequeño bug
freesoul
21. Apr 2011
Challenge for Numernia: Translate his nick.
Lol
yo-mismo
Author
02. May 2011
Solved! Wait next version...
Wins0n
07. Mar 2012
Username my overwrite serial.
I think you need some bounds check
Wins0n
07. Mar 2012
@Wins0n
Username may overwrite serial :)

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