Exploring ELF Section Headers — This post was originally posted on github pages here -> https://ayedaemon.github.io/post/2023/10/elf-chronicles-section-headers/ Intro Assuming you’ve got ELF headers like Elf64_Ehdr or Elf32_Ehdr at your fingertips, and you're armed with the know-how and tools to decipher their contents effortlessly. For this article I’ll be using the below C code to generate the ELF…

Exploring ELF program Headers — This post was originally posted on github pages here -> https://ayedaemon.github.io/post/2023/10/elf-chronicles-program-headers/ In preceding articles, we’ve delved into the details of ELF file headers and section headers. Section headers provide insight into how data and instructions are organized based on their characteristics and grouped into distinct sections. …

Some things about process and stack memory — This post was originally posted on github pages here -> https://ayedaemon.github.io/post/2023/05/intro-to-re-part-4/ When an operating system (OS) runs a program, the program is first loaded into main memory. Memory is utilized for both program’s machine instructions and program’s data…this includes parameters, dynamic variables, (un)initialized variables, and so on.

Task 7 for Eudyptula challenge — This post was originally posted on github pages here -> https://ayedaemon.github.io/post/2023/05/eudyptula-task-7/ This is Task 07 of the Eudyptula Challenge ------------------------------------------ Great work with that misc device driver. Isn't that a nice and simple way to write a character driver? Just when you think this challenge is all about writing kernel code, this task is…

How to reverse engineer a simple calculator program from scratch — This post was originally posted on github pages here -> https://ayedaemon.github.io/post/2023/04/intro-to-re-simple-calculator/ We covered a wide range of topics in earlier articles that were helpful in comprehending how many lower-level processes operate. This blog will concentrate on applying those ideas to recreate C program after reverse engineering a simple calculator binary.

Blog covers how disassembly of basic operations and functions in C programming looks like. — This post was originally posted on github pages here -> https://ayedaemon.github.io/post/2023/04/intro-to-re-part-3/ In the previous blog, I discussed some of the basic C program’s disassembly structures, concentrating on the variables and their memory layouts. This article, a follow-up to the previous one, focuses on basic operations and functions in C programs.

Task 5 for Eudyptula challenge — This post was originally posted on github pages here -> https://ayedaemon.github.io/post/2022/06/eudyptula-task-5/ This is Task 05 of the Eudyptula Challenge ------------------------------------------ Yeah, you survived the coding style mess! Now, on to some "real" things, as I know you are getting bored by these so far. So, simple task this time around: - take…

How to reverse engineer a basic C program — This article was originally published at https://ayedaemon.github.io and has been reposted here via automated scripts. For better formatting, read original post here -> https://ayedaemon.github.io/post/2023/03/intro-to-re-part-2/. Reverese engineering is a powerful tool for any software developer. However, as with any tool, it is only as good as the person using it. …

auditing linux systems with auditd — This article was originally published at https://ayedaemon.github.io and has been reposted here via automated scripts. For better formatting, read original post here -> https://ayedaemon.github.io/post/2022/12/recording_system_events_with_auditd/. Audits are critical for system administrators to detect security violations and track security-relevant information on their systems. …