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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
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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

The ECFS reference guide


The ECFS file format is both simple and complicated! The ELF file format is complex in general, and ECFS inherits those complexities from a structural point of view. On the other side of the token, ECFS helps make navigating a process image quite easy if you know what specific features it has and what to look for.

In previous sections, we gave some real-life examples of utilizing ECFS that demonstrated many of its primary features. However, it is also important to have a simple and direct reference to what those characteristics are, such as which custom sections exist and what exactly they mean. In this section, we will provide a reference for the ECFS snapshot files.

ECFS symbol table reconstruction

The ECFS handler uses advanced understanding of the ELF binary format and even the dwarf debugging format—specifically with the dynamic segment and the GNU_EH_FRAME segment—to fully reconstruct the symbol tables of the program. Even if the original binary has been stripped...

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