Shell Sessions

Stop Watching. Start Hacking.

Are you ready to move beyond slides and theory? Shell Sessions is an intense, hands-on, live online course designed for anyone who wants to master ethical hacking by actually doing it!

[ 🎯 Claim Your Seat – Apply Now ]

What Makes Shell Sessions Different?

🛠 100% Practical Training
No boring lectures. Just you, your shell, and real-world hacking scenarios.
🎯 Live Guided Sessions
Learn in real time with expert support. Ask questions. See how the pros think.
🚀 Skill Over Slides
Understand why things work – not just how. Every challenge builds real-world capabilities.
📜 Epic Certificate
Earn a custom-crafted “Shell Sessions Wall Trophy” to prove your skill & a PDF certificate!
🌍 Online Format – Zero Travel Needed
Train from anywhere. Connect. Hack. Level up.

What You’ll Master

Core & Intermediate Hacking Skills, including:

The hacker’s mindset: How to analyze and exploit networks and systems.
Learn not just the “how” but also the “why” and “when”.
Recon, scanning & enumeration (Nmap, DNS, SMB, SMTP, SNMP).
Exploitation of common vulnerabilities.
Privilege escalation on Windows & Linux.
Web enumeration and exploitation.
Active Directory enumeration and exploitation.
Lateral movement & pivoting.

Everything is tested in Hack The Box Pro Labs! Real environments that simulate enterprise systems and always work.

Who Is This For?

Cybersecurity students who want more than theory.
Curious beginners ready to get serious.
Those preparing for certifications like OSCP.
Ambitious career-switchers seeking practical experience.
IT professionals looking to add offensive skills to their defense.

If you’ve got curiosity, grit, and the basics, Shell Sessions will do the rest.

Course Info

Duration: 4 days × 6 hours = 24 hours total
Location: 100% Online (via Microsoft Teams (or Zoom as fallback))
Language: Dutch or English (Dutch if all participants are native Dutch speakers)
Seats Available: Only 7 spots per course
Certificate: PDF + Shell Sessions Wall Trophy
Price: €849,99 / $999 per seat (depending on the current EUR-USD exchange rate)

Requirements to Join

A computer capable of running a virtual attacking machine (Kali or your preferred OS) and the collaboration platform we use (MS-Teams or Zoom).
Basic knowledge (completed chapters 1 & 2 and read theory of chapters 3 & 4 of the Offensive Security Pathway on Udemy, ~€20 / ~$23).
A Hack The Box account + Active Pro Labs subscription (~€44 / ~$50 per month). Click here for the Monthly subscription. Click here for the Annual subscription. You need to be logged in into HackTheBox before you can purchase a Pro Labs subscription.

Ready to Start Hacking?

Secure your seat now and join an elite group of max 7 students learning hacking the way it was meant to be learned – hands-on, guided, and real.

This course is offered only once or twice a year. Minimum of 4 participants required.

Next course: September 28th – Oktober 1st (4 days), 2026

[ 🎯 Claim Your Seat – Apply Now ]

Course Reviews

★★★★★

Floryan

Recently, I completed the Shell Sessions training by Jarno. In the past, I have taken a CEH training, which was informative, but this course clearly differentiates itself through its strong hands-on focus. Instead of only covering concepts at a high level, you actively execute each phase yourself, which provides a much deeper understanding of the techniques involved. I have followed Jarno for years through his technical articles and videos and have always been impressed by the depth of his knowledge. After working closely with him for four intensive days, this impression was fully confirmed. Jarno demonstrates extensive practical expertise and is able to translate complex theory into clear, real-world applications. The training strikes an excellent balance between foundational concepts and practical execution, making the material directly applicable in real environments. Overall, this is a high-quality, technically solid training for professionals who want to deepen their practical skills in this domain. I can strongly recommend this training.

★★★★★

Daniel

Shell Sessions is a hands-on pentesting course focused on real-world offensive security skills. The labs are practical, realistic, and designed to build and understand the true attacker mindset. Jarno explains complex techniques clearly while encouraging independent thinking. Highly recommended for anyone wanting to explore and develop practical pentesting skills.

★★★★★

Ruud

5/5, I would highly recommend this training to cybersecurity professionals that can use (hands-on) knowledge about how a “hack” is executed. The training is suitable for a broad range of people, from entry level to more experienced cybersecurity professionals wanting to hone their skills, granted that it will be a tough week for the entry levels. Jarno is enthousiastic, experienced and has a lot of knowledge about offensive security and will guide the group through the training. This training helped me gain a better understanding about how hackers can infiltrate a system from the outside and how they will (try to) move around once they gained initial access. Personally I will use what I learned during this training to help my clients have a better understanding about how their systems may be breached and use it as a stepping stone to further my offensive security capabilities.

Frequently Asked Questions (FAQ)

What exactly is Shell Sessions?

A hands-on ethical hacking training where you work directly on real-world hacking labs with expert guidance and practical challenges.

Do I get a certificate?

Yes! You’ll receive a PDF certificate and a trophy-style “Shell Sessions Wall Trophy” to show off your achievement.

When and how will I receive my certificate?

After completing the course, your Shell Sessions certificate (PDF) will be emailed to you. Your “wall-trophy” certificate will be sent by post within 4 weeks of course completion. Please allow additional time for postal delivery, as this can sometimes take several weeks depending on the destination. The “wall-trophy” certificate will be sent only once to the address you provided during registration (not the billing address). If you have not received your certificate within 8 weeks after finishing the course, it may have been lost in transit. Unfortunately, this can occasionally happen, especially with long-distance shipments. We understand this is disappointing, but please note that we are unable to reissue lost certificates.

What if I need to cancel?

You’ll find our general terms and conditions here, but in short:

Cancel 14+ days in advance: Full refund
Cancel 4-14 days in advance: 50% refund
Cancel <4 days before the course: No refund
You can also transfer your seat to a colleague or friend if you let us know at leats 4 days before the course

Can I ask questions during the sessions?

Absolutely! Live trainers provide real-time support, explanations, and coaching.

How long is my seat reserved?

4 weeks after registration. Payment must be completed to secure your seat permanently.

Why is the course divided into 7 blocks of 4 hours?

Since our training is offered worldwide, dividing the course into 7 blocks of 4 hours each allows us to schedule sessions at convenient times for participants across different time zones. Additionally, shorter blocks help maintain focus and improve concentration, making the learning experience more effective and manageable.

The standard training sessions take place from 9:00 AM to 4:00 PM Central European Time (CET). Since our training is offered internationally, the table below provides time conversions for several common time zones. Please note that all dates and times are based on CET, and it is your responsibility to adjust these to your local time zone.

Central European Time (CET): 9:00 AM – 4:00 PM (9:00 – 16:00)
Eastern Standard Time (EST, US East Coast): 3:00 AM – 10:00 AM (03:00 – 10:00)
Pacific Standard Time (PST, US West Coast): 12:00 AM – 7:00 AM (00:00 – 07:00)
Greenwich Mean Time (GMT, UK winter time): 8:00 AM – 3:00 PM (08:00 – 15:00)
India Standard Time (IST): 1:30 PM – 8:30 PM (13:30 – 20:30)
China Standard Time (CST): 4:00 PM – 11:00 PM (16:00 – 23:00)
Japan Standard Time (JST): 5:00 PM – 12:00 AM (17:00 – 00:00)
Australian Eastern Standard Time (AEST): 6:00 PM – 1:00 AM (18:00 – 01:00)