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Learning Linux Binary Analysis

You're reading from   Learning Linux Binary Analysis Learning Linux Binary Analysis

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Product type Paperback
Published in Feb 2016
Publisher Packt
ISBN-13 9781782167105
Length 282 pages
Edition 1st Edition
Languages
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Author (1):
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Ryan "elfmaster" O'Neill Ryan "elfmaster" O'Neill
Author Profile Icon Ryan "elfmaster" O'Neill
Ryan "elfmaster" O'Neill
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Table of Contents (11) Chapters Close

Preface 1. The Linux Environment and Its Tools FREE CHAPTER 2. The ELF Binary Format 3. Linux Process Tracing 4. ELF Virus Technology – Linux/Unix Viruses 5. Linux Binary Protection 6. ELF Binary Forensics in Linux 7. Process Memory Forensics 8. ECFS – Extended Core File Snapshot Technology 9. Linux /proc/kcore Analysis Index

Resistance to emulation


Often, emulators are used to perform dynamic analysis and reverse engineering tasks on executables. One very good reason for this is that they allow the reverse engineer to easily instrument the control of the execution, and they also bypass a lot of typical anti-debugging techniques. There are many emulators being used out there—QEMU, BOCHS, and Chris Eagles' IDA X86 emulator plugin, to name some. So, countless anti-emulation techniques exist, but some of them are specific to each emulator's particular implementation.

This topic could expand into some very in-depth discussions and move in many directions, but I will keep it limited to my own experience. In my own experimentation with emulation and anti-emulation in the Maya protector, I have learned some generic techniques that should work against at least some emulators. The goal of our binary protector's anti-emulation is to be able to detect when it is being run in an emulator, and if this is true, it should halt...

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