Top 10 Resources to Level Up Your OT/ICS Cybersecurity Knowledge

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Mike Holcomb’s curated list of top OT/ICS cybersecurity resources provides invaluable learning materials for professionals in industrial control systems and operational technology security. Below are the key resources along with practical commands, tools, and steps to enhance your cybersecurity skills.

10. FREE 25-Hour Course on OT/ICS Cybersecurity

🔗 https://lnkd.in/e-v3ESTq

You Should Know:

  • Use Wireshark to analyze ICS network traffic: 
    sudo apt install wireshark
wireshark -k -i eth0 -Y "modbus || dnp3 || opcua"
  • Practice Nmap scanning for ICS devices (use cautiously in lab environments): 
    nmap -sV --script=modbus-discover.nse -p 502 <target_IP>

9. FREE ICS/OT Cybersecurity Labs

🔗 https://lnkd.in/eSvTjUKv

You Should Know:

  • Set up a Virtual ICS Lab using Docker: 
    docker pull conpot/conpot 
docker run -it -p 80:80 -p 102:102 -p 502:502 conpot/conpot
  • Simulate PLC attacks with Metasploit: 
    msfconsole
use auxiliary/scanner/scada/modbusdetect
set RHOSTS <target_IP>
run

8. 8 Best GitHub Repos for OT/ICS Security

🔗 https://lnkd.in/emCxX-Cp

You Should Know:

  • Clone and explore ICS Security Tools: 
    git clone https://github.com/dark-lbp/isf.git 
cd isf 
python3 isf.py
  • Run PLCScan for device fingerprinting: 
    python3 plcscan.py -i <target_IP> -p 502
  1. Why You Shouldn’t Connect Active Directory to ICS/OT
    🔗 https://lnkd.in/e6WYU5yc

You Should Know:

  • Check Active Directory (AD) exposure with BloodHound: 
    neo4j start
bloodhound --no-sandbox
  • Detect Kerberos attacks in ICS networks: 
    sudo tcpdump -i eth0 'port 88' -w kerberos_traffic.pcap

6. What a Hacked ICS/OT System Looks Like

🔗 https://lnkd.in/egRwZFxM

You Should Know:

  • Detect unauthorized changes in PLC logic: 
    python3 plc_check.py --ip <PLC_IP> --compare-backup backup_ladder.xml
  • Monitor ICS network anomalies with Snort: 
    snort -A console -q -c /etc/snort/snort.conf -i eth0
  1. Why Multiple Firewalls Between IT & OT Matter
    🔗 https://lnkd.in/e3reueXE

You Should Know:

  • Configure iptables for OT network segmentation: 
    sudo iptables -A FORWARD -i eth0 -o eth1 -j DROP 
sudo iptables -A FORWARD -i eth1 -o eth0 -j DROP

4. OT Cybersecurity Coloring Book

🔗 https://lnkd.in/gd99yDM9

You Should Know:

  • Use GIMP for diagramming ICS networks: 
    sudo apt install gimp
gimp

3. Cybersecurity Coloring Book

🔗 https://lnkd.in/eHiAQGUa

You Should Know:

  • Generate threat models with OWASP Threat Dragon: 
    docker run -p 3000:3000 owasp/threat-dragon

2. How to Protect ICS/OT Systems

🔗 https://lnkd.in/gd62hiuF

You Should Know:

  • Implement MAC (Mandatory Access Control) in Linux: 
    sudo apt install selinux-utils
sudo setenforce 1

1. OT/ICS Certifications to Boost Your Career

🔗 https://lnkd.in/epZDxe3V

You Should Know:

  • Practice GRID (SANS ICS410) labs with Kali Linux: 
    sudo apt install kali-tools-exploitation kali-tools-forensics

What Undercode Say

OT/ICS cybersecurity requires hands-on practice. Use these commands and tools to simulate attacks, defend networks, and understand industrial threats. Always test in isolated environments.

Expected Output:

A structured, actionable guide with verified commands and tools for OT/ICS cybersecurity.

Prediction:

Increased demand for OT security professionals as critical infrastructure attacks rise. Certifications and hands-on labs will be essential for career growth.

References:

Reported By: Mikeholcomb Want – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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