This article was originally published in its entirety at https://www.stackzero.net/gdb-baby-step-3/ Dive deeper into the realms of software debugging with GDB Baby Step 3. This engaging and challenging exercise tests your ability to scrutinize and comprehend memory at a granular level. As we advance from GDB Baby Step 2, we now…

This article was originally published in its entirety at https://www.stackzero.net/gdb-baby-step-2/ Welcome back to our series on the GNU Debugger (GDB) and its applications in tackling the PicoCTF challenges. If you’re joining us for the first time, we recommend revisiting our guide on the GDB Baby Step 1 Challenge. This introductory…

This article was originally published in its entirety at https://www.stackzero.net/gdb-baby-step-1/ Are you a beginner in the intriguing world of reverse engineering? Or perhaps you’re keen to delve into the workings of Linux’s GDB debugger? Either way, we’ve got you covered. Welcome to Stackzero, your one-stop destination for all things related…

This article was originally published in its entirety at https://www.stackzero.net/picoctf-ascii-ftw/ In the dynamic world of cybersecurity, challenges keep us sharp, building our problem-solving skills and technical prowess. Today, we’re venturing into the heart of one such engaging puzzle — the PicoCTF ASCII FTW challenge. Using Ghidra, the powerful software reverse…

This article was originally published in its entirety at https://www.stackzero.net/picoctf-hurry-up-wait/ Dive into the exciting world of Capture The Flag (CTF) challenges with the PicoCTF puzzle “Hurry up! Wait!”. This unique challenge asks you to find a hidden flag in a file. But there’s a twist — the file, named svchost.exe…

This article was originally published in its entirety at https://www.stackzero.net/picoctf-gdb-test-drive/ This article aims to be a quickstart guide about GDB, a crucial tool for reverse engineering. We will closely examine a puzzle from PicoCTF, the ‘GDB Test Drive’ challenge. But, we’re not just solving it. We’re learning the basics of GDB…

Learn to create a Python script that locates images containing specific text using the power of OCR with Tesseract. Every once in a while, we find ourselves needing to locate specific text within images. This can be a daunting task when dealing with a massive library of images. Python language…

Discover an unexpected and humorous approach to avoiding unnecessary meetings with advice from AI ChatGPT. Introduction Hi, I’m the author of the blog StackZero which currently contains dozens of articles on cybersecurity, but this time I want to write something different, taking advantage of the AI help! A few days ago…

Explore the synergy between Python programming and SHA-256 hash functions as we walk you through the process of detecting and removing duplicate files. Introduction Welcome to another piece on stackzero.net. As you might be aware, we typically focus on cybersecurity, exploring topics like penetration testing, vulnerability scanning, and network security. However…