crackmes.one

BinaryNewbie's Simple obfuscation

Author:
BinaryNewbie

Language:
C/C++

Upload:
11:37 PM 09/02/2019

Level:
2

Platform
Unix/linux etc.

Description

A simple crackme, with some obfuscation and a simple anti debug trick. Patch isn't allowed. The difficulty could be easy or medium. I'm waiting for solutions and comments, have fun.

Jmp-pop on 2:27 PM 09/24/2019: I'm having some trouble with this one, any chance you could push me in the right direction or i can email you

BinaryNewbie on 3:48 PM 09/24/2019: Hi, yes, email me: vitor.oliveira.24.24@gmail.com

unc4nny on 12:16 PM 09/26/2019: I just sent a solution, is it acceptable?

BinaryNewbie on 2:53 PM 09/26/2019: I didn't receive the email, but when i receive, i will see it.

newbie_student on 6:17 PM 09/30/2019: hi,flag it's just for me or i must input somewhere ? ) good source )

BinaryNewbie on 8:06 PM 09/30/2019: Hi, the flag is only need for unzip the source, btw, try to submit your solution, i would like to see how did you solve it.

newbie_student on 10:14 PM 09/30/2019: tmp = 97, interesting idea) ... your second, and third crackeme a much harder and i like your anti-debug tricks) Ass1st4nt..., i'm just newbie_student )

BinaryNewbie on 11:54 PM 09/30/2019: Thank you for your sharing your opinion, i hope that you did enjoy, try to solve my second and third crackme. The 97 is just the ascii value of 'a', and my anti debug trick for this one were only ptrace and some code obfuscation, but the others have an anti-disassembly trick and the last one has a little surprise.

BinaryNewbie on 11:54 PM 09/30/2019: Thank you for your sharing your opinion, i hope that you did enjoy, try to solve my second and third crackme. The 97 is just the ascii value of 'a', and my anti debug trick for this one were only ptrace and some code obfuscation, but the others have an anti-disassembly trick and the last one has a little surprise.