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g-w1.github.io | ||
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wiki.osdev.org
[AI summary] A step-by-step tutorial from the OSDev Wiki explains how to parse and implement an ELF file loader for the i386 architecture using C code. |
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blog.nuculabs.dev
Hello, In this article I'll present you my solution on the Chapter 5 CTF from the book Practical Binary Analysis. For this binary, the hint is to fix four broken things. Running file gives us the following response: 1 2 binary@binary-VirtualBox:~/ctf$ file ./lvl3 ./lvl3: ERROR: ELF 64-bit LSB executable, Motorola Coldfire, version 1 (Novell Modesto) error reading (Invalid argument) And the readelf command gives us: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 binary@binary-VirtualBox:~/ctf$ readelf -h ./lvl3 ELF Header: Magic: 7f 45 4c 46 02 01 01 0b 00 00 00 00 00 00 00 00 Class: ELF64 Data: 2's complement, little endian Version: 1 (current) OS/ABI: Novell - Modesto ABI Version: 0 Type: EXEC (Executable file) Machine: Motorola Coldfire Version: ... |
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timelessname.com
[AI summary] The article details the author's process of creating the smallest possible x86 ELF binary that outputs 'Hello World' on Ubuntu Linux, involving C, assembly, and hex editing to minimize the file size. |
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binarydodo.wordpress.com
You might want to complement the reading of this article with another related article:Investigating linking with COMMON symbols in ELF I use GCC 4.8.5 in the examples of this article. General classification of symbols Symbols can be classified into different categories, which determines in which section they are found in an ELF file: Defined symbols... |
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