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Side stories from IT Security, Software Development, Server Administration and Home Automation

Beacon Object Files for Mythic - Part 3 @ cirosec.de
Implementing support for Beacon Object Files in a Mythic beacon
from December 4, 2025
MalDev Command and Control Mythic C2
Beacon Object Files for Mythic - Part 2 @ cirosec.de
Powerful Beacon Object Files in the wild
from November 27, 2025
MalDev Command and Control Mythic C2
Beacon Object Files for Mythic - Part 1 @ cirosec.de
What are Beacon Object Files and how they work?
from November 19, 2025
MalDev Command and Control Mythic C2

Inside the NAC Pi @ cirosec.de
The journey of how we’ve built our own all-in-one device to bypass NAC (including 802.1X)
from July 5, 2024
Linux Networking Raspberry Pi
With echo to root: Developing the rootkit 'Wurzelbausatz'
A (somewhat long) primer on Linux kernel modules and device drivers
from June 21, 2024
Linux MalDev