Acid_Cool_178
presents he's

This Text Are Only Ment To Edcucational Purpose And Not To Be Used Illegaly, I Take No Response For Illegal Use Of This Text. Move On On Your Risc.

This protection needs a correct CD in the CD-ROM that we don't have.

Task 1 <-- Crackme 4
Task 2 <-- Crackme 4a

Task1
Start the crackme and it says the it needs a CD. Clock on the "OK" button to move on with the crackme.
Open Soft Ice by pressing CTRL+D and type Bpx GetDriveTypeA [ENTER]
Exit Soft Ice and press on the "Re-Test CD" and Soft Ice pop's up. Now press F12 once and you will stand at  CMP EAX,05
Write in A [ENTER]
Write in CMP EAX,03 [ENTER]
Press enter once more time
Clear all og the breakpoints by entering BC* [ENTER]
Exit Soft ICe by pressing CTRL+D and tell me what you can see :)
It's got a CD :))

Task2
Start the crackme and it says the it needs a CD. Clock on the "OK" button to move on with the crackme.
Open Soft Ice by pressing CTRL+D and type Bpx GetDriveTypeA [ENTER]
Exit Soft Ice and press on the "Re-Test CD" and Soft Ice pop's up.
Press F12 once and LOOK at the code. We can se any CMP XXX,05 so we have to so something other cool stuff now.
Press F10 until you are at 401097
Write in A [ENTER]
Write in MOV EBX,03 [ENTER]
And press enter once more time
Look down and you can see this CMB EBC,ECX
EBX are the CD-ROM wich he have set the vaule to 03
ECX are the Hard Drive wich ARE the vaule of 03 :)

Task1 and 2
GetDriveTypeA worx like this

UINT GetDriveType(
LPCTSTR lpRootPathName // address of root path
);

Understand, we have canged CMP EAX,05 to CMP EAX,03

LaZaRuS, Wajid, Borna Janes, ManKind, Eddie Van Camper, ACiD BuRN, KoRnFLeX, Eternal_Bliss, Potsmoke, DiABLO. Torn@do, ^AlX^  and all the other i have forgotten