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Ian Ignatov
Ian Ignatov

How To Crack Any Software With Ollydbg Plug-ins


One of the simplest ways in which to perform software exploitation is to use instructions located in specific areas of memory to redirect code execution to areas of memory that we can control. In the case of the vulnerabilities shown so far in this tutorial we have managed to set the EIP register to locations of our choosing both via directly overwriting a RETN address on the stack and by using an overwritten SEH entry to redirect execution via the windows error handling routines. If we want to use this control over EIP to redirect to our own code inserted within the application, the simplest way to proceed is to find instructions that can perform this redirection at known locations within memory.




how to crack any software with ollydbg plug-ins



The following sample shows a way of bypassing or removing the copy protection in order to use the product without extending the trial duration or, in fact, without purchasing the full version. The copy protection mechanism often involves a process in which the software checks whether it should run and, if it should, which functionality should be allowed.


Every reverse engineer, malware analyst or simply a researcher eventually collects a set of utility software that they use on a daily basis to analyze, unpack, and crack other software. This article will cover mine. It will be useful to anyone who has not yet collected their own toolset and is just starting to look into the subject. However, an experienced reverse engineer must also be curious about what other crackers are using.


It's weird that today this problem happens again, even with the same app, crack_me.exe.I DO NOT install any plugin this time but Windows still alerts that crack_me.exe(same as other apps) crashes.Why yesterday Olly works normally and today the problem happened again ?


The software is free of cost, but the shareware license of version 1.x requires users to register with the author.[4] In version 2.x, the registration requirement was dropped.[5] The source code can be purchased from the author.[6]


OllyDbg is often used for reverse engineering of programs.[8] It is often used by crackers to crack software made by other developers. For cracking and reverse engineering, it is often the primary tool because of its ease of use and availability; any 32-bit executable can be used by the debugger and edited in bitcode/assembly in realtime.[9] It is also useful for programmers to ensure that their program is running as intended, and for malware analysis purposes.


The following sample shoes a way, how to bypass or remove the copy protection sachem in order to use the product without extending the trail duration or in fact, without purchasing the full version. The copy protection mechanism often involves a process in which the software checks whether it should run and, if should, which functionality should be exposed.


Here, the red box showing, the entry point instructions of the program referred to as 00401204. The CPU main thread window displaying the software code in form of assembly instructions which are executed top to down fashion. That is why as we stated earlier, assembly programming knowledge is necessary when reversing with native executable.


If also with Ultra string reference you don't get results, run the software in the debugger and then search for the string in Memory, then you can Memory breakpoint that area and understand where the software work with it and if there are encryptions to defeat.


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