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If a codecave and a function call are so similar, why do we need codecaves at all then? The reason we need codecaves is because source code is rarely available to modify any given program. Now that the boring stuff is out of the way, it is time to get started! TheoryĪ codecave can best be defined as " a redirection of program execution to another location and then returning back to the area where program execution had previously left." In a sense, a codecave is no different in concept than a function call, except for a few minor differences. Last but not least, the "Conclusion" will quickly recap what the article has discussed and present parting words. The "Application" will show the "Theory" section in action with a complete example of using codecaves to accomplish a particular task. The "Theory" will discuss the theory of codecaves in regards to what they are and how they are used. The "Introduction", what you are reading now, will setup the article and cover what this article is about and what you will hopefully learn. This article is broken down into four main sections with various subsections. As you read along in the article, you might want to search the net for additional reference material if something is not quite clear. This article is written as a guide for all levels of expertise, even beginners, but it is assumed that you have some basic knowledge of C/C++, Assembly, and Reverse Engineering concepts.

In addition, you will be exposed to a practical example to reinforce what you have learnt, so you can see the concept in action.
#Install microsoft pinball arcade no language dll how to#
By the end of this article, you will know what a codecave is, what it is useful for, and how to use it. The purpose of this article is to provide a complete guide to understanding and using codecaves. You may not have an immediate use for it now, but perhaps one day you will and you will be glad that you know how to use the concept. Regardless, codecaves are just another tool a programmer or reverse engineer can use to enhance their skills and toolset. It is true that codecaves have an important and useful place in the underground world of hacking, but they can be used for legitimate reasons as well (as with anything programming related that can be used for good or bad). If you do, most of the resources are found on "shady" sites. If you search around on the internet, you will not find much on the topic of codecaves. A space may sneak in there from time to time. Furthermore, is it "codecave" or "code cave"? I am not quite sure, but I will try my best to refer to it consistently as a "codecave". It is a term that is scarcely used and is only useful in a reverse engineering context.

If it is new to you, do not worry, you are not the only one.

I have even asked seasoned assembly programmers about the term before and most of them had not heard of it. If you have heard of it, you might not have read a clear definition of it or quite understand what it is or why it is useful. Attribute 3: Codecave Stack/Register ModificationĪ "code-what"? Unless you have spent some time working in the area of reverse engineering, chances are you have not heard of the term "codecave" before.
