Security vendors validating Linux coverage
The goal is direct, high-value technical training instead of generic security content.
Open Stealth Security
Linux Trainings with real depth.
Open Stealth delivers multiple Linux security trainings built around practical labs, kernel research, and low-level defensive engineering.
MultipleLinux security trainings
5 DaysFlagship kernel training
CLI TutorAI guidance ready for the student VM
Featured training
Linux Kernel Module Development
A 5-day hands-on program covering kernel internals, LKMs, networking, memory, tracing, secure coding, hardening, and a capstone project.
- VM-based labs with setup and verification scripts
- Strong emphasis on Linux networking and kernel security
- Designed for serious technical teams, not casual learners
Kernel Internals and ArchitectureLoadable Kernel ModulesKernel NetworkingMemory ManagementConcurrency and Locking
Audience
Who this is for
This is meant for technical teams that need Linux depth, working labs, and credible research behind the material.
Blue teams working on detection engineering
The goal is direct, high-value technical training instead of generic security content.
Platform and cloud defenders running Linux fleets
The goal is direct, high-value technical training instead of generic security content.
Instructors who need a serious, lab-heavy curriculum
The goal is direct, high-value technical training instead of generic security content.
Open Stealth
Training, research, and defense work
Explore multiple Linux trainings, low-level research, and the OpenStealth rootkit-detection product for Linux defense.
Trainings
Hands-on Linux security training with real labs, practical exercises, and delivery options for serious technical teams.
View trainingsDefense Platform
Anti-rootkit and Linux defense work grounded in low-level research, product validation, and practical defensive engineering.
View defense workBlog
Research notes, lab writeups, and technical essays on Linux kernel security and defensive engineering.
Read the blogBlog
Latest writing
Research notes, lab writeups, and technical essays on Linux kernel security.
From Research LKM to Detection Workflow
OpenStealth uses a controlled research module to turn kernel behavior into validation workflows, product checks, and training material for defenders.
Kernel Training Fails Without a Known-Good Lab
Slides do not teach kernel work. Students need a stable VM, preflight checks, and enough guidance to recover from mistakes without losing momentum.
Why a Public Research Rootkit Helps Linux Defenders
Publishing a controlled research module gives defenders and vendors something concrete to inspect, test against, and reason about.