RoboThiefClient - A Telegram session stealer
While scrolling through a Telegram group, I recently (late december 2019) found a tool that claimed to add fake followers to your Telegram channels. That was...
Posts by Category
Malware Analysis
Analysis of a JSE malware
On Thursday the 15.08.2019, our company received a shady mail and due to a smart employee, we got hold of the malware sample and could analyze it right away....
Misc
Welcome to my blog - the first post
Hello and welcome. It’s nice to see that you found your way to my blog.
CTF
CSCG - Writeup for the ‘Intro to Reversing’ challenges
This post is a writeup for the three intro reversing challenges for the CSCG 2020. It should give you an idea on how to approach such challenges. Since those...
Networking
ZeroTier - A smart p2p VPN solution
Abstract / tl;dr ZeroTier is an open source, lightweight P2P VPN solution that helps you connect clients directly. It can be used for gaming, file sharing o...
Debugging
Quote unquote - How not to encode passwords
My approach to debugging an issue in Outlook
Malware
Telegram account hijacking via bots
Today a user contacted us in @BotTalk on Telegram. He wrote that his bot was sending “weird messages”. I had a short chat with him about it and it quickly tu...
Phishing
Using Telegram as Phishing backend
The amount of phishing has been increasing over the course of the last few years. The attackers use all kind of tricks and techniques for their phishing sit...