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Digital Steganography for Executables
Tobiáš, Pavel ; Bidlo, Michal (referee) ; Strnadel, Josef (advisor)
This bachelor's thesis concerns itself with steganographic concealment of arbitrary data in executable files . Initially it speaks in general terms , mainly about injection - and substitution - based steganographic methods for various types of cover - objects . Afterwards , the focus is on executable files in the ELF format and the x86 ISA family ; permutation - based methods for instructions and basic block chains are mentioned and the substitution - based method of instruction equivalence classes is examined . Consequently , the design, implementation , testing and optimization of a custom solution based on the last mentioned method are described . Finally , the methods and outcomes of experimenting with the custom solution are described .
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Disassembler and Analyser of Binary Code
Bayer, David ; Smrčka, Aleš (referee) ; Peringer, Petr (advisor)
This thesis is focused on binary code disassembly. It describes the design of ARM and AVR architectures and does a research into existing solutions. Based on this knowledge, we designed and implemented a disassembler-like application. The application provides a graphical user interface to facilitate the starting of disassembly and displays the result. The designed environment is extensible to more disassemblers, disassembly algorithms, and code analysis.
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Disassembler and Analyser of Binary Code
Bayer, David ; Smrčka, Aleš (referee) ; Peringer, Petr (advisor)
This thesis is focused on binary code disassembly. It describes the design of ARM and AVR architectures and does a research into existing solutions. Based on this knowledge, we designed and implemented a disassembler-like application. The application provides a graphical user interface to facilitate the starting of disassembly and displays the result. The designed environment is extensible to more disassemblers, disassembly algorithms, and code analysis.
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Digital Steganography for Executables
Tobiáš, Pavel ; Bidlo, Michal (referee) ; Strnadel, Josef (advisor)
This bachelor's thesis concerns itself with steganographic concealment of arbitrary data in executable files . Initially it speaks in general terms , mainly about injection - and substitution - based steganographic methods for various types of cover - objects . Afterwards , the focus is on executable files in the ELF format and the x86 ISA family ; permutation - based methods for instructions and basic block chains are mentioned and the substitution - based method of instruction equivalence classes is examined . Consequently , the design, implementation , testing and optimization of a custom solution based on the last mentioned method are described . Finally , the methods and outcomes of experimenting with the custom solution are described .
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Generic Unpacker of Executable Files
Milkovič, Marek ; Hynek, Jiří (referee) ; Matula, Peter (advisor)
Executable files packing is a process used for compression or protection of these files. The behavior of the packed executable file is difficult to analyze, therefore the packed file needs to be unpacked at first. This work deals with the design and implementation of a generic unpacker that is part of the decompilation chain in the AVG's Retargetable Decompiler. The goal of this work is to create the generic unpacker of executable files, which would be easily extensible, platform and architecture independent, and its ouput would be decompilable. The heuristic analyses are proposed and implemented to achieve the decompilability of the ouput. The results are comparable with the other unpackers used in practice.
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Extension of Tool for Executable-File Analysis
Zavoral, Milan ; Ďurfina, Lukáš (referee) ; Matula, Peter (advisor)
This work deals with extension of a tool for executable-files analysis, which is a~part of a retargetable decompiler developed within the Lissom project. This thesis has two main goals. Firstly, it is necessary to analyze the original implementation of this tool and to find its drawbacks. Secondly, we have to implement a whole new tool without the lacks of its predecessor. This solution must be a full-featured analyzer of executable files. Within this thesis, we also focus on accuracy of compiler and packer detection. Among others, this task is achieved by using special heuristics technics of detection that can also recognize polymorphic packers. In the conclusion, the achieved results of this work and their contribution for the retargetable decompiler are discussed.
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