GNU Radio is a software development platform for software-defined radios (SDR), enabling the design, simulation, and implementation of radio communication systems without the need for specific hardware, using a collection of modular signal processing blocks. GNU Radio is part of the SDR ecosystem, supporting researchers, engineers, and enthusiasts in wireless communication and signal analysis. Installation GNU Radio is distributed on numerous Linux distributions through their repositories. Installing it is very simple (for example, on an Ubuntu system): ...

The objective of this article is to share our experiences with RF hacking. It provides useful insights and practical tips for advancing in the field of RF hacking. This account is based on the study of MISC magazine, particularly the special issue number 29, and my work on previous blog posts about hardware hacking. We will review the encountered problems, the bottlenecks, and the solutions that can help resolve this type of issue. We will review the encountered problems, the bottlenecks, and the solutions that can help resolve this type of issue. ...

Welcome back to “Road to OSCP”, a series where I share my journey toward obtaining the OSCP certification. In this second episode, we turn our attention to the “Blue” machine on the “Hack the Box” platform. Like the previous machine we tackled, “Blue” is based on Windows, providing another opportunity to hone our skills in a familiar yet challenging environment. Enumeration First, we’ll conduct an nmap scan to identify what services are running : ...

It’s the first episode of “Road to OSCP,” a series focused on preparing for the OSCP certification. To kick off this training, I have subscribed to a pentesting training platform called “Hack the Box.” This platform offers numerous machines to pwn, providing a practical, hands-on approach to learning security penetration techniques. I’m starting this series with the “Legacy” machine, which is based on Windows, because my background is stronger in Linux systems. This choice will help me broaden my expertise and challenge my skills in a less familiar environment. ...

In the initial post titled “Garage Door Opening,” we encountered a significant obstacle in correctly detecting the signal from the garage remote due to the use of inappropriate equipment. The experiment initially involved a makeshift method using a yardstick—an unconventional choice since it lacks the capabilities of a Software Defined Radio (SDR). SDRs are preferred for their ability to capture signals in their unprocessed form, enabling detailed analysis. Consequently, I opted to buy the “Nesdr Smart v5” from Nooelec because of its immediate availability, which was crucial for the urgency of the project. This model serves as a practical substitute for the highly esteemed and commonly recommended RTL-SDR.com model. ...

Welcome to the “From Zero to Hardware Hacker” series, where I document my foray into the world of hardware hacking. Recently, on the recommendation of my CTF peers, I purchased a Yardstick One. Initially unfamiliar with the specifics, I researched and found that the ANT500 antenna, covering a frequency range of 75 MHz to 1 GHz, is highly recommended for beginners—though I’m still exploring why. As a novice equipped with an affordably priced radio-controlled garage door, I’ve chosen this as my entry point into RF hacking. For security reasons, I will omit certain details like brand names and models. This series will chronicle my journey into a new aspect of cybersecurity: hardware hacking. ...