Evidence of VBA Purging Found in Malicious Documents

TL;DR We have found malicious Office documents containing VBA source code only, and no compiled code. Documents like these are more likely to evade anti-virus detection due to a technique we dubbed "VBA Purging". VBA Purging techniqueMalicious MS Office documents leveraging VBA, have their VBA code stored inside streams of Compound File Binary Format files. … Continue reading Evidence of VBA Purging Found in Malicious Documents

IoT hacking field notes #1: Intro to glitching attacks

TL;DR: First in a new series of short, IoT-related posts, this tells the story of a simple glitching attack we used to get a bootloader shell and ultimately root a device. IoT field notes is a new series of short stories about interesting (hopefully 🙂 ) observations, vulnerabilities and techniques, inspired directly from the IoT … Continue reading IoT hacking field notes #1: Intro to glitching attacks

My journey reaching #1 on Hack The Box Belgium – 10 tips, tricks and lessons learned.

Ranked #1 on HackTheBox Belgium Not so long ago, I achieved a milestone in my penetration testing career.: reaching rank 1 on HackTheBox. For those of you that don't know what Hack The Box (HTB) is: Hack The Box is an online platform allowing you to test your penetration testing skills and exchange ideas and … Continue reading My journey reaching #1 on Hack The Box Belgium – 10 tips, tricks and lessons learned.

The return of the spoof part 2: Command line spoofing

A few days ago I wrote a blog post about the evolving landscape of threat detection and how attackers need to adapt their techniques. In the previous post, I talked about one of the deception techniques that attackers are now using, called parent process ID spoofing. In this blog post, I'll talk about another deception … Continue reading The return of the spoof part 2: Command line spoofing