[Keygenme] Woot332's KeygenMe

[woot332]

Easy keygenme have phun.
Rules keygen only no patching or serial fishing.

 

base.rar

[EvOlUtIoN]

Good idea to remove the EP and to break some of the PE in order to avoid debug

Serial is easy to find and generate.

 

Thanks

[kao]

Such a nice protection - and then you ruin it by calculating correct serial..

 

Keygen attached, relevant source code:

 

private void button1_Click(object sender, EventArgs e){   // get username   byte[] username = Encoding.ASCII.GetBytes(textBox1.Text);    // calc CRC part 1   byte[] part1 = BitConverter.GetBytes(Crc32.CRC32Bytes(username));    // calc CRC part 2   Array.Resize(ref username, 4);   byte[] part2 = BitConverter.GetBytes(Crc32.CRC32Bytes(username));    // show the serial   string serial = "";   foreach (byte b in part1)   {      serial += String.Format("{0:X2}", ;   }   foreach (byte b in part2)   {      serial += String.Format("{0:X2}", ;   }   textBox2.Text = serial;}

EDIT:removed garbage line

kg_woot332.zip

Edited March 28, 2014 by kao

[woot332]

Such a nice protection - and then you ruin it by calculating correct serial..

 

Keygen attached, relevant source code:

 

private void button1_Click(object sender, EventArgs e){   // get username   byte[] username = Encoding.ASCII.GetBytes(textBox1.Text);    // calc CRC part 1   byte[] part1 = BitConverter.GetBytes(Crc32.CRC32Bytes(username));    // calc CRC part 2   Array.Resize(ref username, 4);   byte[] part2 = BitConverter.GetBytes(Crc32.CRC32Bytes(username));    // show the serial   string serial = "";   foreach (byte b in part1)   {      serial += String.Format("{0:X2}", ;   }   foreach (byte b in part2)   {      serial += String.Format("{0:X2}", ;   }   textBox2.Text = serial;}

EDIT:removed garbage line

 

Nice job kao

[GIV]

Self keygen.

base_dump_SCY2.7z

[SmilingWolf]

I had fun unpacking it, a bit less keygenning it... but a KeygenMe is a KeygenMe, so here is my solution.

Thanks for the challenge

 

Keygen-STC.7z

[woot332]

Great work guys .

[ragdog]

Generate proc hWnd:HWND

push sizeof pName

push offset pName

push IDC_NAME

push hWnd

call GetDlgItemText

push eax

push offset pName

push 0

call CRC32_

bswap eax

mov ebx,eax

push 4

push offset pName

push 0

call CRC32_

bswap eax

push eax

push ebx

push chr$ ("%X%X")

push offset buffer

call wsprintf

push offset buffer

push IDC_KEY   

push hWnd

call SetDlgItemText

ret

Generate endp

No len checking

Edited March 29, 2014 by ragdog

[WormFC]

I liked this but than I saw the generation algorithm which was simply too easy.

Anyways thanks for the challenge, always appreciated.

As usual nice solution guys.

(Don't think there is a point in showing mine.. same thing in different language).