Torent Tutorial Crackme Cruehead
This is a list of torrents generated for crackme v1 0. Download Tutorial Cruehead CrackMe v1.0 crack by iCi at our cracksguru database. Only best and comprehensive OllyDbg tutorial in CHM. This tutorial is specially written for those who want to master the art of software. Crackme OF CRUEHEAD.
Serial Proshow Gold 6.0.3410. Introduction To The Cracking With Ollydbg From Zero 58 Parts PDF book (58 Parts) To learn how to crack applications with OllyDBG from zero with examples.
Section 2 - Getting Started --------------------------- Ok, so you should have downloaded the crackme and have Ollydebug installed. First thing to do is close this tutorial and have a play around. See what you can find and get a feel for the program. The very least this will do is teach you how to use basic Ollydebug functions.
No cheating now;-) Done? Well maybe you suprised yourself and found things you thought you'd never find? Maybe you found nothing and reckon you just wasted 30 minutes? Either way, I'll go through the process I used to reverse this and hopefully it will teach you a few things.
Okay, so run the crackme and lets have a look around. Quran English Pdf File. Well, theres not much to see but we can find a 'Register' box. Enter a user name into the box and a random username. You'll get a message saying 'No luck there mate' (incidentally, if you do happen to guess your serial and get the 'Congratulations' message, I recommend that you buy a lottery ticket today).
So we know what we need to do; we need to find the serial - at this point we dont know if its a hard coded number or if its generated from the username but thats part of the fun! Okay, so open Olly and select Crackme1.exe. You'll then be presented with the workings of the application, starting about here: 00401000 6A 00 PUSH 0 00401002 E8 FF040000 CALL 00401007 A3 CA204000 MOV DWORD PTR DS:[4020CA],EAX 0040100C 6A 00 PUSH 0 Now, we know that the Crackme is taking whatever we typed and checking it against the correct serial. We therefore need Olly to intercept any calls this crackme makes where it could be reading what we typed from the username and serial boxes. There are a few ways windows does this - its beyond the scope of this article to teach you the depths - but I will tell you that one of them if using the call 'GetDlgItemTextA'. So, what we need to do is make sure that if the Crackme makes this call, Olly intercepts it and breaks for us so that we can follow what is being done with the information.
Thats easy enough. If you press Ctrl-N (or right click and select 'Search for' followed by 'name (label) in current module') you are presented with a list of calls made by the crackme. You can then right click on GetDlgItemTextA and select 'set breakpoint on every reference'. We're ready to go. Piano Software Pc Full Version. Press F9 and Olly will run the crackme, presenting you with its user interface.
Go to the registration box and enter a name and any serial. I'm using 'FaTaLPrIdE' and '123456'. Press the register button and Olly should break here: 004012C4 . E8 07020000 CALL 004012C9 .
83F8 01 CMP EAX,1 004012CC . C745 10 EB0300>MOV DWORD PTR SS:[EBP+10],3EB Now, this is the first reference to the call 'GetDlgItemTextA' so we know our serial is shortly going to be read in. If you read the top of you Olly window, it should say [CPU - main thread, module Crackme1]. This is important as when this says Kernel or User32, we know we can keeping stepping as it has nothing to do with our serial - we are only interested in the Crackme. Press F8 to step over the program and try to get a feel for what is going on. Pressing just twice will bring you into User32 and after 15 step overs we are back with the crackme.