A cyberattack is right around the corner—does your team know what it will look like or how to respond? Test your team's abilities and your system's configuration! This category includes capture-the-flag exercises, defacement exercises, and red team / blue team exercise environments to pit your team members against each other. All scenarios include active monitoring, so you know how far you've gotten!
These exercises build upon the skills learned in CYRIN's foundational labs. Many of the exercises replace detailed instructions with hints to help you along, but you are free to use whatever techniques are needed to achieve the exercise objectives.
This package includes all exercises in the Attack, Defence, and IR Exercises category, as well as all new exercises in the category released during your subscription period. The MITRE ATT&CK Matrix is a taxonomy of adversary tactics and techniques, including detection and mitigation techniques for each. These techniques are aligned as appropriate to CYRIN exercise lab packages.
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Specific prerequisites vary by exercise, but generally include knowledge of the internals of networking protocols (TCP/IP, DNS, HTTP, etc.), cyber forensics concepts and tools, as well as centralized logging configuration and analysis. Familiarity with the UNIX command line is essential.
Knowledge of attack, pen-testing, and defensive techniques on Linux systems, including web application attacks, firewall configuration, etc. Familiarity with command-line tools on Linux systems (e.g., Metasploit).
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All CYRIN labs, exercises and attacks happen within a virtual environment. Each trainee or student gets their own virtual instance of a lab, exercise or attack, allowing training to be self-paced and available anywhere at any time. In order to meet specific training objectives, CYRIN subscriptions are sold on a packaged basis. That is, groups of CYRIN labs, exercises and/or attacks are recommended and bundled to meet the individual needs of the student.
CYRIN Attack, Defence, and Incident Response Exercises Package:
  • 18 hours, self-paced. Pause and continue at any time.
  • 18 CPEs awarded on successful completion.
  • 6 months access.
1. Capture the Flag Scenario I
One of the most important skills in cyber defence is the ability to think like an attacker. How will an adversary break into your systems? Are your sensitive files properly hidden from prying eyes? Can a dedicated attacker steal encryption keys that would allow them to impersonate you? Knowing how such attacks might work helps you securely configure and defend your systems.
Hone your skills and see how an attacker would exploit configuration weaknesses. Familiarity with the UNIX command line and networking concepts, as well as knowledge of web application vulnerabilities (e.g., SQL injection). Hints are available if you get stuck! This Capture the Flag (CTF) scenario lets you see first-hand an attacker's strategies for compromising your systems. Can you gain total control over a target system solely via a web application?
2. Capture the Flag Scenario II
Build on your skills from the first Capture the Flag (CTF) scenario with a new web server setup—can you gain root access on this box? This CTF scenario lets you see first-hand how an attacker could go about compromising your systems.
3. Conduct a Data Leak Investigation
Get experience conducting an internal investigation on a realistic corporate network.
You are a security officer for a shipping company whose trucks have repeatedly been hijacked by a criminal organisation. The criminals appear to have advance information on the routes of the trucks, despite the company changing routes frequently. Company executives suspect someone within the company is leaking truck route information to the criminals. Students will have to determine who is leaking the information, how, and to whom.
4. Packet Capture Analysis and Manipulation
Get valuable experience extracting data from network packet captures! Students will use Wireshark® to analyse network packet traces containing normal network traffic and active attacks. Detailed information will be extracted from the traces by examining packets and by using Wireshark's built-in analysis and PCAP-manipulation tools.
5. Intrusion Analysis using Network Traffic
Examine packet captures from actual intrusions and dive deeper into how attackers operate! Students will learn the details of protocols such as SMB and SSH by examining network traffic captures in Wireshark®, then will proceed to build network packets 'by hand' in order to tunnel secret data in normal-looking traffic. Finally, students will learn the details of 'web shell' payloads commonly used by attackers.
6. Advanced Analysis of Malicious Network Traffic
Continue your exploration into malware's behaviour on the network! Students will analyse network captures containing real, malicious network traffic, both by hand and using tools such as Security Onion and Sguil. Both malware spreading methods and command and control operations will be explored. In addition, students will create web shell payloads of their own to see how they operate from the inside.
7. Red vs Blue
Test your skills against others as either an attacker attempting to compromise a system or a defender trying to prevent the attackers from doing damage. This is a head-to-head exercise, best played with two or more participants from your organization. Participants choose their own teams.

All of the CYRIN exercise labs are mapped to the NIST NICE Framework - Specialty Areas:
  • Incident Response (CIR)
  • Exploitation Analysis (EXP)
  • Cyber Operations (OPS)
  • Digital Forensics (FOR)
CYRIN training is sold on a subscription basis. All CYRIN subscriptions come with two free labs: “Getting Started with CYRIN” and “Web application Security Analysis using OWASP-ZAP”. All new CYRIN courses that are added to the training platform during a subscription period will be made available to subscribers at no additional cost.
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