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Join Zakhar Bernhardt’s live ICS/OT Security Masterclass and gain hands-on experience in defending industrial control systems (ICS) against cyber threats. This lab-based training focuses on Modbus protocol exploitation, traffic analysis, and defensive techniques—all in a safe, virtual environment.
🔗 Sign up here: https://lnkd.in/dBxJYpAc
You Should Know:
1. Discovering Virtual PLCs on a Network
Use Nmap to scan for PLCs (Programmable Logic Controllers) in a lab environment:
nmap -sV --script modbus-discover -p 502 <target_IP_range>
2. Scanning and Mapping Modbus
Enumerate Modbus devices using mbpoll (Linux):
mbpoll -a <unit_id> -r <register> -t <type> -c <count> <target_IP>
3. Enumerating Memory Addresses
Extract Modbus memory layouts with Metasploit:
use auxiliary/scanner/scada/modbus_findunitid set RHOSTS <target_IP> run
4. Simulating Coil Flips and Register Writes
Manipulate PLC coils (on/off) using Python & `pymodbus`:
from pymodbus.client import ModbusTcpClient
client = ModbusTcpClient('<target_IP>')
client.write_coil(0, True) Flip coil at address 0
5. Analyzing Modbus Traffic
Capture and inspect Modbus packets with Wireshark:
wireshark -k -Y "modbus" -i <interface>
Or filter live traffic:
tcpdump -i eth0 'port 502' -w modbus_traffic.pcap
6. Defending Against Modbus Attacks
- Enable Modbus/TCP encryption (if supported).
- Restrict access via firewalls:
iptables -A INPUT -p tcp --dport 502 -s <trusted_IP> -j ACCEPT iptables -A INPUT -p tcp --dport 502 -j DROP
- Monitor for anomalies using Snort IDS:
snort -c /etc/snort/snort.conf -i eth0 -A console
What Undercode Say:
This masterclass bridges the gap between OT security theory and real-world cyber threats. By simulating attacks on Modbus-enabled PLCs, participants gain defensive insights crucial for securing critical infrastructure.
🔹 Key Takeaways:
- Hands-on ICS exploitation & defense
- Deep packet inspection for OT traffic
- Ethical, legal lab environment
💡 Expected Output:
- A fully functional virtual ICS lab for testing exploits & defenses.
- PCAP files for forensic analysis.
- Custom Python scripts for Modbus manipulation.
Prediction:
As OT systems increasingly connect to IT networks, Modbus-based attacks will rise. Professionals trained in ICS security will be in high demand to protect power grids, oil refineries, and manufacturing plants.
🔗 Enroll now: https://lnkd.in/dBxJYpAc
References:
Reported By: Zakharb Masterclass – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
