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-   -   how to make my own cracks (https://fileforums.com/showthread.php?t=53169)

cdkiller 30-08-2003 05:58

how to make my own cracks
 
i know that everyone wants to crack safedisc / securom etc...
but start simple, read tutorials about cd-checks / nag-screens

if u can handle the different kinds of CD-Checks
(GetDriveTypeA, GetVolumeInformationA, GetLogicalDriveStrings)
than i recommand u to try unpacking with softice / ollydebug.
download some crackmes und read the included tutorials.

what u need:
-----------------
- a brain, as always ;)
- pen and paper (in case of reboots and hints etc...)
- Tutorials as many as possible
- ASM / Win32APi knowledge (focus on TASM language)
- Win32Dasm or IDA to disassemble an exe/dll
- HexEditor (i prefer HexWorkShop and HView)
- a debugger like SOFTiCE or OLLYDEBUG and the references

tutorials:
-----------
http://www.crackstore.com/tutors-eng.htm
http://www.crackstore.com/tutors-ger.htm
http://krobars.reverse-engineering.info/main.html (click begin)
http://www.crackmes.de/

http://krobars.reverse-engineering.info/other1.html#cd
beginner should start with this site, coz the tutorials are easy to understand and cover 'how to remove cd-checks'

TippeX 30-08-2003 06:05

u forgot the all important pen and paper

/me slaps cdkiller

and tasm and masm arent really that far apart.. try making an anti debug kmd in tasm.. i wish you luck ;)

cdkiller 30-08-2003 06:18

lol, i doubt a cracking newbie can code anti debug stuff ;)

how could i forget pen and paper :rolleyes:
/me is confused coz of the slap

TippeX 30-08-2003 07:44

i slapped ya to make u remember the all important pen and paper next time ;)

you also forgot the other things

- an rva is not an offset
- patch the proc not the conditional
- remember that proc returns are passed via eax which is trashed on your next api call (couldnt resist) ;pp

Noobie 30-08-2003 07:48

ok..
I been playing with the Cycling Manager 3 update, I managed to hook into this prodrv04.sys driver and made it ignore the cd in the drive. Now I still need to unpack the executable though, how do you suggest I proceed?

TippeX 30-08-2003 08:17

really?;)

cdkiller 31-08-2003 06:39

Quote:

remember that proc returns are passed via eax which is trashed on your next api call (couldnt resist) ;pp
lol do u talk about me ??? i think about the regsetup.exe ;)

krondike 03-09-2003 13:49

You also might need Windows 98 as the Platform/OS!

TippeX 03-09-2003 14:58

Quote:

Originally posted by krondike
You also might need Windows 98 as the Platform/OS!
nope win98 is due to be phased out soon, and will not be supported anymore, so you're gonna have to start cracking in 2k/xp etc.. which is only a little bit different

krondike 03-09-2003 15:06

As I heard from CDKiLLER and as it was my point... the best OS to start doing crack in, is Windows 98.

But if microsoft are gonna start to stop with servive...maybe cracking tools are gonna fit for NT based system...:rolleyes:

cdkiller 04-09-2003 07:12

Win98 is really outdated ;)
iīm on WinXP and Win2k Pro...

use Compuware.SoftICE.Driver.Suite.v3.0
itīs WinXP compatible.

TippeX 04-09-2003 08:56

heh 3.0.. you're better off using 2.7 considering that 3.0 doesnt allow global bpx's, only context ones.. compuware kinda took a step backwards in that one

ByteMare 04-09-2003 09:32

heh, guess some "big companies" got pissed off by ppl using bpx's to tamper with their software...:D Ahh, just kidding..

krondike 04-09-2003 14:10

Quote:

Originally posted by cdkiller

use Compuware.SoftICE.Driver.Suite.v3.0
itīs WinXP compatible.

Can a Trial version be found somewhere? :o

TippeX 04-09-2003 20:07

i think theres a 14 day trial kicking about, dont know if its crippled or whatever (the 3.0 installer will install as 14 day demo if you dont supply a key)...try the compuware site i guess although i would you recommend you learn your assembly code before you start playing with softice


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