CWAid-catcher is a project which tries to analyse the german Corona-Warn-App (CWA) spread and usage among citizens. This project is splitted into two parts. One part is the code for a ESP32 sensor, which catches BLE Beacons from the Exposure Notification Framework that are emitted if a person has an active Corona-Warn-App installed on its smartphone. The other part is the evaluation framework, that matches the collected Beacons (also called IDs in our project) to Temporary Exposure Keys (TEK) uploaded to the CWA server, to determine if one of the collected Beacons corresponds to a TEK, which means that the Beacon belongs to a infected person. Overall, the CWA ecosystem is mimicked with our project, such that you can evaluate the CWA by yourself with ESP32 sensors. Even without access to ESP32 sensors and without collecting Beacons, you can still evaluate some data, like the amount of new warnings uploaded to the CWA server each date.

A CTF-like challenge powered by Docker. This repository contains a Web Challenge with one user token and a Linux Privilege Escalation Challenge with a root token. This challenge was part of the Hacker Contest at the TU Darmstadt 2021. This project was built together with Jan Varenkamp [https://gitlab.com/Varenkamp].

Websocket based discord bot in GO with Overwatch stats API integration. You can also copy an piece of code written for this project, and use it in your own project without any restrictions. Im aware that there is this pretty good discord bindings api out, which also supports websocket connections. But i wanted to write my own small layer. OverwatchDiscordBot is now listed on the discordbotlist. Vote here The bot is currently running on an Odroid XU4Q

Bachelorarbeit Informatik 2019 - Hochschule für angewandte Wissenschaften München

There are numerous good and detailed Writeups for TryHackMe CTFs/Walkthroughs. This Respository offers short Writeups with just the essential information to solve the challanges.