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El objetivo principal del libro es dotar al lector de las herramientas necesarias para poder llevar a cabo labores de ingeniería inversa por sus propios medios y comprendiendo en cada momento lo que sucede, sin toparse con barreras técnicas a las que no pueda enfrentarse (Description in English below). El objetivo del libro sin duda, es proporcionar de recursos al lector para afrontar los diversos retos con una buena base teórica y técnica para dotarlo de razonamiento sobre cada problema y en cada caso. Description in English: The ability to reverse the process of compiling a source code, being able to convert a set of binary numbers into source code, in a language understandable by a person with programming knowledge, with no other tools than vision, is without a doubt a great quality that differentiates professionals among themselves. The main objective of the book is to provide readers with the necessary tools to carry out reverse engineering work by their own means and have a full understanding of the process, without facing technical hurdles.In this work, the author puts into practice everything learned with real cases which are resolved step by step, such as the exploitation of a security failure, the detection of a back door and the generation of a file with a valid format, having the binary code as only source to validate it. The book also contains a snapshot to the history of reverse engineering, theory of compilers, data and control structures (x86 32 and 64 bits and ARM), operation of disassemblers and debuggers under Linux and Windows, formats of PE files and ELF, operation of dynamic loaders also in Linux and Windows.