[crackme] Coderipper Net Crackme 1 [solved by cocacolacore]

[CodeExplorer]

Password: NETreverser

Link:

http://www.zshare.net/download/5752681051083a21/

Some info:

.NET CrackMe 1 (2009 03 24)

Level: Very easy

Task: Make the program to accept any serial (of any size) and change the registration state.

Rules: No keygen - you can try but you will fail.

Solutions must be a modified and working standalone executable of the original executable.

You must provide details of the addresses and the bytes you modified with an explanation

for why you chose to modify them.

Good luck!

Edited March 26, 2009 by CodeRipper

[Teddy Rogers]

The [crackme] tag has been added to your topic title.

Please remember to follow and adhere to the topic title format - thankyou!

[This is an automated reply]

[high6]

key = "SND-" + md5("1750C37B63A8488014497C38735BE06B");

Just a matter of bruteforcing it.

[cocacolacore]

This one was pretty easy to do. I first unpacked it using the .NET Unpacker (http://ntcore.com/netunpack.php) and then used IDA to find the hex offset of the click method. I nop'ed the calls to get_Length() and turned that brtrue to br so you could enter any length string. I then nop'ed the calls to the verification method and had it directly jump to the part where it sets flag = true. And that was pretty much it.

crack.zip

[CodeExplorer]

Nice job bro.

I told you that it an easy one

A member of SND cracked this in ~2 minutes.

Harder .NET crack me will comes.

You can look for crack me + solutions at:

http://board.b-at-s.info/index.php?showforum=17

Cheers,

CodeRipper

Edited March 26, 2009 by CodeRipper