//Distributer:
http://cod3r.cjb.net
//Program Name: Crackme 4
//Programmer: n0p3x
//Date: 25th April 1999
//Version: 1
//FOREWORD
As usual, this program is really easy and was coded as an
introduction to CD checks. Maybe later on in the series the CD
check may be improved and maybe even made a lot more dificult.
Their is allways the problem that i may make a program thats too
hard for me to crack so we have to be carefull :-) This program
is dedicated to my lovely girlfriend Carolyn.
//TOOLS
Softice / WDASM
//SOLUTION
1) Load the program. After clicking OK on the messagbox enter
sice and type "BPX GETDRIVETYPEA".
2) Exit sice and in the crackme click on the re-test CD button.
3) Sice pops up. Press F12 to exit the windows calls. Then you
should be on the line of code after the call to GetDriveType, and
following the call should be a test and then a conditional jump.
4) Press F10 to step over the test and then type "A".
Then type "NOP", and "NOP" again and enter to
end the editing. Then clear all breakpoints and exit sice. Your
program will now think it's being run from a CD.
5) The program will be uncracked once it is closed. To make
changes permanent you need to patch the EXE file. I'm sure you
know how to do this and i'm lazy so i'm not going to put it here.
//PERSONAL GREETS
- Carolyn : For being great.
- theForger : For a great tutorial.
- Duelist : For being interested in my crackmes.
//OTHER GREETS
#cracking4newbies on efnet : For being a cool place to learn.
Borland / Inprise : For giving me an alternative to Microsoft
//END BIT
Thanx for reading.
n0p3x
