JP Dias articles - 26 total
How to Run Your Own Weather Station
Some months ago I decided to finally acquire a weather station. Nothing fancy, just a cheap enough,...
From a NAS to a full-fledge homelab with spare parts
It all started with a QNAP NAS to backup my raw photography’s and have some way to store other media...
Hardware Hacking and Research Toolbox Inventory
Inspired by the blogpost My Red Team assessment hardware by David Sopas this post describes hardware...
OPOSEC XMAS CTF Challenge Christmas 2022 Write-up
Well, I guess it is better late than never, so almost four months after the closing of the OPOSEC...
Portuguese Cybersecurity Competition CTF Write-up
Some weeeks ago I’ve participated in the “Portuguese Cybersecurity Competition” organized by...
A (not so smart) smart home
Internet-of-Things, cyber-physical systems, smart spaces, smart anything… All these buzzwords and...
On the hook of a phisher
Phishing campaigns are standard, but they are typically poorly done and low-effort. But, sometimes,...
Increasing the Dependability of Internet-of-Things Systems in the context of End-User Development Environments
Today, 1 April of 2022, I have successfully defended my PhD thesis work on Software Engineering and...
Notes on (Software Engineering) Research
Now that I’ve finally delivered my PhD thesis (awaiting public defense), and after sharing for more...
Listening to Satellites and Other Adventures
Radio communications always had my curiosity, but little to no focus. Recently I brought a...
A (not so) Gentle Intro to Active Directory: ØxＯＰＯＳɆＣ [0xF09F8EA3] Challenge
Yet another month, yet another ØxＯＰＯＳɆＣ meetup. This is a write-up on the 0xF09F8EA3 edition...
Yet Another Raspberry Pi Cluster
Those who are hardware tinkers and hackers know how easy it is to accumulate hardware thingies:...
Adventures in Reverse: D-Link DVA-G3170i
There are places over Portugal where fibre connections are still a mirage, and all we’ve got are DSL...
ØxＯＰＯＳɆＣ Mɇɇtuᵽ Summer Challenge 2020
“Based in Porto, the ØxＯＰＯＳɆＣ group was started by g33ks who are passionate about security. The...
Summer 2020 RCTS CERT CTF Write-Up
This year the Computer Emergency Response Team (CERT) of the RCTS – The Science, Technology and...
Back from the Dead: Recovering from a Bricked BIOS
My long-term laptop, which accompanied me for some years, died some time ago while proceeding a BIOS...
RetroComputing: A Tale of Shuttle Motherboards and Pentium II
Some 4-5 years ago an acquaintance of mine gave me one desktop computer tower asking if “it could be...
UBERHid: DIY Wifi keylogger and HID injector
UBERHid is a Wifi keylogger with keyboard and mouse injection capabilities desinged and implemented...
Make it smoke! Cisco Challenge Write-up
BSides is the biggest security-wise event in Portugal, with 2 days of talks, workshops, a CTF...
ØxＯＰＯＳɆＣ Mɇɇtuᵽ [0x75] Challenge Write-up
“Based in Porto, the ØxＯＰＯＳɆＣ group was started by g33ks who are passionate about security. The...
ØxＯＰＯＳɆＣ Mɇɇtuᵽ [0x72] and [0x73] Challenges Write-up
“Based in Porto, the ØxＯＰＯＳɆＣ group was started by g33ks who are passionate about security. The...
ØxＯＰＯＳɆＣ Mɇɇtuᵽ [0x70] Challenge Write-up
“Based in Porto, the ØxＯＰＯＳɆＣ group was started by g33ks who are passionate about security. The...
Indoor Sensing Hub powered by Mozilla Things Framework
The Web of Things aims to build the Internet of Things in a truly open, flexible, and scalable way,...
Bsides Lisbon 2018 - Checkmarx (mini) CTF Write-Up
During the past two days, I went to the Bsides Lisbon conference. Among all the talks/workshops (that...
NeXT Pi
NeXT Computer (also called the NeXT Computer System) is a workstation computer that was developed...
Hello, World!
Hello world , this is my first blog post. A place for sharing ideas, thoughts, experiments and other...