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hacking the exe file - Printable Version

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RE: hacking the exe file - Shad0w Warr10r - 04-17-2013

(04-16-2013, 03:04 PM)Deque Wrote: If you hardcode the password like this, you can just view it using a hex editor.
Edit: You can use a hash instead, although this still won't prevent some reverse engineers to crack your program, it will make it harder than just opening a hex editor. You have to hash the user input and compare it with your own hash. Use a secure algorithm for that, i.e. scrypt.

well i am trying to crack the password of this file

http://www.mediafire.com/?dc5h1tv8b5t9s0k

i have downloaded HEX EDitor can you please explain me how to crack
when i open this file in hex editor i am getting this


[Image: captureyi.png]

can you please explain me step by step please

thanks in advance.

RE: hacking the exe file - Shad0w Warr10r - 04-17-2013

(04-16-2013, 03:04 PM)Deque Wrote: If you hardcode the password like this, you can just view it using a hex editor.
Edit: You can use a hash instead, although this still won't prevent some reverse engineers to crack your program, it will make it harder than just opening a hex editor. You have to hash the user input and compare it with your own hash. Use a secure algorithm for that, i.e. scrypt.

well i am trying to crack the password of this file

http://www.mediafire.com/?dc5h1tv8b5t9s0k

i have downloaded HEX EDitor can you please explain me how to crack
when i open this file in hex editor i am getting this


[Image: captureyi.png]

can you please explain me step by step please

thanks in advance.

RE: hacking the exe file - Deque - 04-17-2013

(04-17-2013, 12:43 PM)Wild Hacker Wrote:
(04-16-2013, 03:04 PM)Deque Wrote: If you hardcode the password like this, you can just view it using a hex editor.
Edit: You can use a hash instead, although this still won't prevent some reverse engineers to crack your program, it will make it harder than just opening a hex editor. You have to hash the user input and compare it with your own hash. Use a secure algorithm for that, i.e. scrypt.

well i am trying to crack the password of this file

http://www.mediafire.com/?dc5h1tv8b5t9s0k

i have downloaded HEX EDitor can you please explain me how to crack
when i open this file in hex editor i am getting this


[Image: captureyi.png]

can you please explain me step by step please

thanks in advance.

Why do you assume the program does the same as you wrote in your first post?
That program uses anti-debugging techniques, so it can't be done with a hex editor, nor does it work just like that with olly. You will have to find an experienced reverse engineer to give it a shot (which I am not).

RE: hacking the exe file - Deque - 04-17-2013

(04-17-2013, 12:43 PM)Wild Hacker Wrote:
(04-16-2013, 03:04 PM)Deque Wrote: If you hardcode the password like this, you can just view it using a hex editor.
Edit: You can use a hash instead, although this still won't prevent some reverse engineers to crack your program, it will make it harder than just opening a hex editor. You have to hash the user input and compare it with your own hash. Use a secure algorithm for that, i.e. scrypt.

well i am trying to crack the password of this file

http://www.mediafire.com/?dc5h1tv8b5t9s0k

i have downloaded HEX EDitor can you please explain me how to crack
when i open this file in hex editor i am getting this


[Image: captureyi.png]

can you please explain me step by step please

thanks in advance.

Why do you assume the program does the same as you wrote in your first post?
That program uses anti-debugging techniques, so it can't be done with a hex editor, nor does it work just like that with olly. You will have to find an experienced reverse engineer to give it a shot (which I am not).

RE: hacking the exe file - Shad0w Warr10r - 04-17-2013

(04-17-2013, 02:13 PM)Deque Wrote:
(04-17-2013, 12:43 PM)Wild Hacker Wrote:
(04-16-2013, 03:04 PM)Deque Wrote: If you hardcode the password like this, you can just view it using a hex editor.
Edit: You can use a hash instead, although this still won't prevent some reverse engineers to crack your program, it will make it harder than just opening a hex editor. You have to hash the user input and compare it with your own hash. Use a secure algorithm for that, i.e. scrypt.

well i am trying to crack the password of this file

http://www.mediafire.com/?dc5h1tv8b5t9s0k

i have downloaded HEX EDitor can you please explain me how to crack
when i open this file in hex editor i am getting this


[Image: captureyi.png]

can you please explain me step by step please

thanks in advance.

Why do you assume the program does the same as you wrote in your first post?
That program uses anti-debugging techniques, so it can't be done with a hex editor, nor does it work just like that with olly. You will have to find an experienced reverse engineer to give it a shot (which I am not).

ok but thanks..

RE: hacking the exe file - Shad0w Warr10r - 04-17-2013

(04-17-2013, 02:13 PM)Deque Wrote:
(04-17-2013, 12:43 PM)Wild Hacker Wrote:
(04-16-2013, 03:04 PM)Deque Wrote: If you hardcode the password like this, you can just view it using a hex editor.
Edit: You can use a hash instead, although this still won't prevent some reverse engineers to crack your program, it will make it harder than just opening a hex editor. You have to hash the user input and compare it with your own hash. Use a secure algorithm for that, i.e. scrypt.

well i am trying to crack the password of this file

http://www.mediafire.com/?dc5h1tv8b5t9s0k

i have downloaded HEX EDitor can you please explain me how to crack
when i open this file in hex editor i am getting this


[Image: captureyi.png]

can you please explain me step by step please

thanks in advance.

Why do you assume the program does the same as you wrote in your first post?
That program uses anti-debugging techniques, so it can't be done with a hex editor, nor does it work just like that with olly. You will have to find an experienced reverse engineer to give it a shot (which I am not).

ok but thanks..

RE: hacking the exe file - Coder-san - 04-17-2013

It was not obfuscated, and inside it was a hard-coded password.
I wonder why do you want it. I won't reveal the password since it's somebody's property.

RE: hacking the exe file - Coder-san - 04-17-2013

It was not obfuscated, and inside it was a hard-coded password.
I wonder why do you want it. I won't reveal the password since it's somebody's property.

RE: hacking the exe file - Deque - 04-17-2013

(04-17-2013, 04:14 PM)Coder-san Wrote: It was not obfuscated, and inside it was a hard-coded password.
I wonder why do you want it. I won't reveal the password since it's somebody's property.

Huh? I must be blind. I didn't see a hardcoded password (only a public key and something that looks like a serial, but doesn't work), nor could I run it properly in olly.

RE: hacking the exe file - Deque - 04-17-2013

(04-17-2013, 04:14 PM)Coder-san Wrote: It was not obfuscated, and inside it was a hard-coded password.
I wonder why do you want it. I won't reveal the password since it's somebody's property.

Huh? I must be blind. I didn't see a hardcoded password (only a public key and something that looks like a serial, but doesn't work), nor could I run it properly in olly.