Learning operating system development using Linux kernel and Raspberry Pi

tinyproxy - a light-weight HTTP/HTTPS proxy daemon for POSIX operating systems

OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response.

"Das U-Boot" Source Tree

Tutorial: Writing a "bare metal" operating system for Raspberry Pi 4

Read-only mirror of Trusted Firmware-A

LKM rootkit for Linux Kernels 2.6.x/3.x/4.x/5.x/6.x (x86/x86_64 and ARM64)

Azazel is a userland rootkit based off of the original LD_PRELOAD technique from Jynx rootkit. It is more robust and has additional features, and focuses heavily around anti-debugging and anti-dete…

An LKM rootkit targeting Linux 2.6/3.x on x86(_64), and ARM

《ORANGE’S：一个操作系统的实现》源码

JynxKit2 is an LD_PRELOAD userland rootkit based on the original JynxKit. The backdoor has been replaced with an "accept()" system hook.

Raspberry Pi Zero baremetal examples

Copy: Linux process monitoring (exec, fork, exit, set*uid, set*gid)