Red Teaming EP1: C2 and Phishing Simulation

This is the first of three articles that will be published concerning social engineering campaigns during red teaming exercises (while I was working at ArtResilia). Follow this link for the original blog post.

November 6, 2023

0xOPOSEC Summer Challenge 2023

“Based in Porto, the 0xOPOSEC group was started by g33ks who are passionate about security. The meetup primary mission is to discuss and tackle upsurging security issues by leveraging the expertise and know-how of members of the group.” Index The Flag Dispenser {WEB} Recon All The Things {WEB} The Poor Man Proxy {WEB} Whois? {WEB} This Looks Familiar {WEB} Healthy {CRYPTO} Kadabra used Substitute! {CRYPTO} It Is All About Magic {CRYPTO} I Forgot My Phone Number {CRYPTO} A Different Kind of Flag {MISC} No One Can Read This!...

August 21, 2023

TinyGo in Microcontrollers

Index Introduction TinyGo XIAO Flashing Reset Resources Introduction Recently (at work) I had to flash a microcontroller to simulate a keyboard. The problem was that I didn’t knew anything about microcontrollers (still don’t) or even how could I flash those. At the time I was using the Digispark microcontroller since it was cheap and it was user friendly (with an external case, the device looks like a normal usb). Then a co-worker helped me on the flashing process and for that we used Arduino IDE....

May 26, 2023

Migrating from ESXi to Proxmox

Index Introduction ZFS Pool Content Resources Introduction During college I used ESXi to host a few VM’s because I had a low end laptop that was not able to handle multiple VM’s turned on. After finishing college I decided to move to Proxmox as I wanted to persue the open source route. To be able to acomplish this I gathered two HDD drives (500 GB each) and two SSD (250 GB each)....

April 28, 2023

0xOPOSEC Christmas Challenge 2022

“Based in Porto, the 0xOPOSEC group was started by g33ks who are passionate about security. The meetup primary mission is to discuss and tackle upsurging security issues by leveraging the expertise and know-how of members of the group.” Index Black Hole {MISC} A Programming Language {MISC} Find The Typo {MISC} Back Me Up! {MISC} 867 CFR {NETWORK} Who’s There {NETWORK} My Network Is Secure! {NETWORK} Mmmm…Donuts… {CRYPTO} Lets Share! {CRYPTO} The Folt {WEB} In Passwords, We Trust, and in PHP, We Believe!...

December 31, 2022