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Learning Linux Binary Analysis

You're reading from  Learning Linux Binary Analysis

Product type Book
Published in Feb 2016
Publisher Packt
ISBN-13 9781782167105
Pages 282 pages
Edition 1st Edition
Languages
Concepts
Author (1):
Ryan "elfmaster" O'Neill Ryan "elfmaster" O'Neill
Profile icon Ryan "elfmaster" O'Neill
LinkedIn
Ryan "elfmaster" O'Neill is a computer security researcher and software engineer with a background in reverse engineering, software exploitation, security defense, and forensics technologies. He grew up in the computer hacker subculture, the world of EFnet, BBS systems, and remote buffer overflows on systems with an executable stack. He was introduced to system security, exploitation, and virus writing at a young age. His great passion for computer hacking has evolved into a love for software development and professional security research. Ryan has spoken at various computer security conferences, including DEFCON and RuxCon, and also conducts a 2-day ELF binary hacking workshop. He has an extremely fulfilling career and has worked at great companies such as Pikewerks, Leviathan Security Group, and more recently Backtrace as a software engineer. Ryan has not published any other books, but he is well known for some of his papers published in online journals such as Phrack and VXHeaven. Many of his other publications can be found on his website at http://www.bitlackeys.org.
See other products by Ryan "elfmaster" O'Neill

Table of Contents (17) Chapters

Learning Linux Binary Analysis
Credits
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
1. The Linux Environment and Its Tools 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

/dev/mem

There have been a number of kernel rootkits that used /dev/mem, namely phalanx and phalanx2, written by Rebel. This device has also undergone a number of security patches. Currently, it is present on all systems for backwards compatibility, but only the first 1 MB of memory is accessible, primarily for legacy tools used by X Windows.

FreeBSD /dev/kmem

On some OSes such as FreeBSD, the /dev/kmem device is still available and is writable by default. There is even an API specifically designed for accessing it, and there's a book called Writing BSD rootkits that demonstrates its abilities.

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Authors (1)

Profile icon Ryan "elfmaster" O'Neill
LinkedIn
Ryan "elfmaster" O'Neill is a computer security researcher and software engineer with a background in reverse engineering, software exploitation, security defense, and forensics technologies. He grew up in the computer hacker subculture, the world of EFnet, BBS systems, and remote buffer overflows on systems with an executable stack. He was introduced to system security, exploitation, and virus writing at a young age. His great passion for computer hacking has evolved into a love for software development and professional security research. Ryan has spoken at various computer security conferences, including DEFCON and RuxCon, and also conducts a 2-day ELF binary hacking workshop. He has an extremely fulfilling career and has worked at great companies such as Pikewerks, Leviathan Security Group, and more recently Backtrace as a software engineer. Ryan has not published any other books, but he is well known for some of his papers published in online journals such as Phrack and VXHeaven. Many of his other publications can be found on his website at http://www.bitlackeys.org.
Read more
See other products by Ryan "elfmaster" O'Neill

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