home *** CD-ROM | disk | FTP | other *** search
-
- the right way to go!
- ▄▄▄▄▄▄▄▄ ▄▄▄▄▄▄▄▄ ▄▄▄▄▄▄▄▄▄▄▄▄▄ ▄▄▄▄▄▄▄▄
- █ ▄▄▄▄ █ █ ▄▄▄▄ ▀▀▀▀▀▀▀▀▀ ▄▄▄▄ ▄▄▄▄ ▀▀▀▀ ▄▄▄▄ ▀▀▀▀▀▀▀▀▀▀█
- █ ████ █ █ ████▀████ ████ ████ ████ ████▀████ ████ ████ █
- █ ████ ▀▀▀▀ ████ ████ ████▄████ ████ ████ ████ ████ ████ █
- █ ████ ████ ▄▄▄▄▄████ ▄▄▄███▄▄▄ ████ ████ ▄▄▄▄ ████ ████ █
- █ ████ ████ ████ ████ ████ ████ ████ ████ █ █ ████▀▀▀▀▀ █
- █ ████▄████ ████▄████ ████ ████ ████ ████ █ █ ████ █▀▀▀▀▀
- █ ▀▀▀▀ ▄▄▄▄▄▄▄▄▄▄ ▀▀▀ ▄▄▄▄▄ ▀▀▀ ▀▀▀ ▀▀▀▀ █ █ ▀▀▀▀ █
- ▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀
-
- GERMAN CRACKING FORCE / PC -───▄
- ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
-
-
-
-
- Cracking - HowTo #1 made for you by Yaan! [Laxity]
-
-
-
- Due to countless requests, I will show you how to crack a shareware program.
- The example i will be using is Ghosttyper 1.0e You can get it here:
-
- www.ghosttyper.com.
-
- If you want to crack it using this tutorial, be sure to get version 1.0e.
- Otherwise, the adress-areas and patterns i will tell you about may be different.
- Oke lets get started.
-
- Things you will need:
-
- *HEXEDITOR:
- I`m using Ultraedit 5.20, because it has those cOOl little tabs to switch between
- different files, and it has no size-limit. Any other HExEd will do the same.
- If you have it, you can also use HIEW.
-
- *DISASSEMBLER:
- I`m still using WDASM 8.9, because i can`t unpack that damn IDA 3.75
- You will find WDASM spread all over the net.
-
- *PC
- If you are reading this on a monitor, THAT problem is solved already.
-
- *BRAIN
- Oke, this one`s really easy, so you won`t need a high IQ.
-
-
- Now let`s get into it:
- First, let`s install that proggie and take a look. To keep this
- usable for all you guys out there, i will translate the german
- stuff into english. (If there is some)
-
- Now, let`s see what has been installed:
-
- GhostKey.dll -----> Dynamic Link Library
- Ghostt_e.hlp -----> Helpfile_English
- Ghostt_g.hlp -----> Helpfile_German
- GhostTyp.exe -----> Executable
- GhostTyp.INI -----> .INI
- Install.log -----> This one logged the installation
-
- Now let`s run the .EXE to see how the program is protected and what it does to
- make you register. There we have a SplashScreen, saying that the program is not
- registered, and that you are in the 30-day TrialPeriod. The "OK" button is not
- active until a TimeLoop is done. Now, click on "Register" and type in your name
- and a code-dummy. I use Yaan! [Laxity] for the name and 123456789 for the code.
- Click on "OK". There will be a message telling you that you have entered the
- wrong code. Write down that errormessage. We will use that to try to find out
- more about the protection. Let`s disassemble the .EXE with WDASM. Once it is
- disassembled, you will see the program in ASM-code.
-
- In WDASM, click on "String references" and search for the errormessage that
- popped up when you entered the wrong code. Did you find it ? No ?
- Hmmmmm. It`s not in there. Oke, that was shit. Normally, this is the first thing
- for me to do. When you can`t find it, you have to find & use a different
- AttackPoint to crack it.
-
- Then lets peek a little bit into those string references to find something interesting.
- Whooops. Wait. One string says "Unregistered". Thats bad, lets see if we find "Registered"
- That`s what we want it to be, right ? Scroll a bit upwards and there you go.
- DoubleClick on "Registered" once. I`m always doing another DoubleClick to see if
- there`s another Reference for that one. Now you are into the code where the program
- decides if it is registered or not. So lets see :
-
-
- * Referenced by a (U)nconditional or (C)onditional Jump at Address:
- |:00462FA3(C)
- |
- :00463012 E891D9FBFF call 004209A8
- :00463017 8B45FC mov eax, dword ptr [ebp-04]
- :0046301A E8C53EFAFF call 00406EE4
- :0046301F 8BF0 mov esi, eax
- :00463021 E86A8CFFFF call 0045BC90
- :00463026 3BF0 cmp esi, eax
- :00463028 754E jne 00463078 <-------------- Hello there !
- :0046302A E89D8BFFFF call 0045BBCC
- :0046302F 6A00 push 00000000
- :00463031 8D4DF4 lea ecx, dword ptr [ebp-0C]
-
- * Possible StringData Ref from Code Obj ->"Registered"
-
-
- This is what you should see after you DoubleClicked on "Registered". As you can see
- at the top, this SringData is referenced by a conditional jump at adress :00462FA3.
-
- So we are doing a rude "dirty" crack for now, take a look at the above asm code.
- There are some calls you can step into by clicking "Goto code location" This will
- tell you more about what is done. But to me, this area seems to be important:
-
- :00463026 3BF0 cmp esi, eax -----> compares esi / eax
- :00463028 754E jne 00463078 -----> Jumps to 00463078 if Not Equal
-
- So it looks like if the code you entered is compared to the right one calculated,
- and he jumps to 00463078, if it`s not the correct one. Hmmmmm. So why don`t we simply
- change the conditional jump ? Let`s make him jump only to 00463078 ( bad register),
- if you entered the CORRECT code. So we will have an any Name / Number Crack.
- Every Number will register the program, except the correct one which is calculated by
- the protection scheme.
-
- In WDASM, click on this line:
-
- :00463028 754E jne 00463078
-
- At the statusline, you will see the offset where you can patch the jump into the
- GhostTyp.exe. For me, it says @offset 00062428h. So bring up your HexEditor and
- load the .exe. Go to offset 00062428h
-
- You will find the following pattern:
-
- ->75<- 4E E8 9D 8B FF FF 6A uN蝋 j
-
- now change the 75 at the beginning to 74:
-
- ->74<- 4E E8 9D 8B FF FF 6A tN蝋 j
-
-
- Changing the 75 to 74 will replace the JNE with JE in line 00463028
- So it will jump only if the code is correct ( Jump if Equal )
- I will refer to some bytepatterns later.
-
-
- Save the patched file under a different name (e.g. GhostTypCRK.exe)
- Let`s see if it worked. Run GhostTypCRK.exe, click on "Registrieren"
- (that`s "Register" in german ), enter any Name and any Number, click on "OK"
-
- Wheeee. You are registered, and you just cracked Ghosttyper 1.0e
- (Thanks to this tutorial, don`t forget) So now you can go for your own
- cracks and practice some years & join Laxity !
-
- Now, I have a little surprise for you: Ghosttyper has a built-in keygenerator !
- After you have cracked & registered the program, look at your GhostTyp.INI.
- Did you ? There you have THE CORRECT CODE with the name you entered.
- And it`s not even crypted. Doh; that`s realllllly stupid !
- To generate more numbers, simply delete the .INI and register as often as you like.
-
- THATSIT !
-
-
- Sure, there are more ways to crack it, and this one`s not the cleanest,
- but it works and is easy to explain in this way.
-
- *Bytepatterns:
-
- JNE Jump if Not Equal 75
- JE Jump if Equal 74
- JMP Jump EB
- NOP No Operation 90
- JA Jump if Above 77
- JB Jump if Below 72
- JNA Jump if Not Above 76
- JLE Jump if Less or Equal 7E
- JL Jump if Less 7C
-
- You HAVE to learn assembler to crack programs. Oke, you will NEED
- the basics, but the more you know about ASM, the faster you can
- understand the code & protection. ( Oh, really ?)
- The JNE / JE commands can be used for any name / number cracks
- as good as for timelimited trialversions. The NOPs might be useful
- to override code you won`t to be executed. And you can use JMP for
- jumping to codeareas you want to be executed right away. 8)
-
- If I get some positive responses on this, maybe I will put up some
- other tutorials. But don`t ask for it, it`s done when it`s done !
-
- Have phun !
- Yaan! [Laxity]
-
-
-
-
-
-
-
-
- ╠═════════════════════════════─» Membaz: «─═════════════════════════════╣
- ║ ║
- ║ Animalo (leader ) PC ▄ laxity_hq@gmx.net ║
- ║ ║
- ║ SONIC 98 (cracker) PC ▄ laxity_s98@gmx.net ║
- ║ pCsK8R (cracker) PC ▄ laxity_pc@gmx.net ║
- ║ Yaan! (cracker) PC ▄ laxity_yaan@hotmail.com ║
- ║ JoGy (cracker) PC ▄ jogy_laxity@hotmail.com ║
- ║ The Brain (cracker) PC ▄ the.brain.@gmx.net ║
- ║ xCrk (cracker) PC ▄ ║
- ║ vTeC (cracker) PC ▄ ║
- ║ ║
- ║ Tiger of THT (gfxer ) PC ▄ ║
- ║ Raptor #1 (driver ) PC ▄ ║
- ║ ║
- ╠══════─» Greetz «─════════════════════════════════════════════════════════╣
- ║ ║
- ║ APP - GCG - GWA98 - NEXUS98 ║
- ║ ║
- ╠═════════════════════════════════════════════════════─» Join Laxity «─════╣
- ║ ║
- ║ Are you a cracker?... Contact the founder and ask him if you can join! ║
- ║ Are you a courier?... Contact the founder and ask him if you can join! ║
- ║ ║
- ╚════════════════════─» http://cracking.home.pages.de «─═══════════════════╝
-