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This one-day course by Mike Holcomb demystifies OT/ICS penetration testing, bridging the gap between IT and OT security. Key topics include:
– Pivoting from IT to OT
– Safe testing methodologies
– Differences between IT and OT penetration testing
– Assumed breach techniques through IT/OT DMZs
– Evaluating PLC cybersecurity
Includes hands-on labs, slides, lab manuals, and session recordings. A “Pay What You Can” model ensures accessibility.
You Should Know:
1. Key OT/ICS Pentesting Commands
- Nmap for OT Devices:
nmap -sS -Pn -p 502,102,44818 --script modbus-discover.nse <OT_IP>
Scans for Modbus/TCP, Siemens S7, and EtherNet/IP ports.
- PLC Enumeration (Metasploit):
use auxiliary/scanner/scada/modbusdetect set RHOSTS <OT_IP_RANGE> run
2. IT-to-OT Pivoting
- SSH Tunneling to OT Networks:
ssh -L 502:localhost:502 user@jumpbox
Forwards Modbus traffic securely.
- Windows Proxy Chaining (for DMZ Breach):
netsh interface portproxy add v4tov4 listenport=8080 connectport=80 connectaddress=<OT_DEVICE_IP>
3. Reconnaissance
- Shodan for OT Devices:
shodan search --fields ip_str,port,org 'product:modbus'
Finds exposed Modbus devices.
- ICS-specific OSINT Tools:
python3 CVE-2023-3595_scanner.py --target <PLC_IP>
4. Impacting Industrial Processes
- PLC Blink Attack (Python):
from pymodbus.client import ModbusTcpClient client = ModbusTcpClient('<PLC_IP>') client.write_coil(0x0001, True) Toggles coil
What Undercode Say:
OT pentesting requires specialized tools like PLCscan, GRFICS, and ISF. Always:
1. Isolate test environments (use virtualized OT labs like ICS-Security-Lab).
2. Monitor process impacts with Wireshark filters:
tcp.port == 502 || udp.port == 47808
3. Leverage MITRE ATT&CK for ICS for attack simulation.
Prediction:
As OT/ICS attacks rise (e.g., water plant hacks), demand for certified OT pentesters will surge by 40% by 2026.
Expected Output:
- Course completion with 8 CPEs.
- Ability to conduct safe OT assessments and write actionable reports.
- Hands-on experience compromising PLCs without disrupting operations.
Relevant URLs:
Note: Replace
<OT_IP>,<PLC_IP>, etc., with actual target IPs. Always obtain authorization before testing.
References:
Reported By: Mikeholcomb Very – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
