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Introduction:
Operational Technology (OT) security training has long been hampered by fragile, machine-specific lab environments that break when moved across systems. The new Portable Lab Format (PLF) from Labshock addresses this pain point by allowing security professionals to export entire OT lab topologies—complete with SCADA services, network configurations, and PLC integrations—into a single portable package that can be imported and run on any compatible host.
Learning Objectives:
- Understand the architecture and benefits of Portable Lab Format (PLF) for OT security testing.
- Learn to export, transfer, and import a full OT lab environment using Labshock’s PLF feature.
- Apply PLF to build reproducible gas station and critical infrastructure attack scenarios for hands-on training.
You Should Know:
1. Understanding PLF and Its Core Components
PLF encapsulates not just virtual machines but network topologies, service configurations, and external device mappings (sensors, PLCs) into a single immutable format. Unlike traditional VM snapshots or OVA exports, PLF preserves inter-container routing, SCADA protocol settings (Modbus, DNP3, IEC 61850), and hardware-in-the-loop connections. This means a lab built on a Windows workstation can be moved to a Linux server or cloud instance without reconfiguring IP schemes or re-pairing PLCs.
Step‑by‑step guide to inspect a PLF package (assuming Labshock CLI):
Linux: List contents of a .plf archive (tar-based) tar -tvf gas_station_ge_ms5002e.plf Extract metadata tar -xvf gas_station_ge_ms5002e.plf lab_manifest.json cat lab_manifest.json | jq '.topology' Windows (PowerShell): View compressed PLF details tar -tf gas_station_ge_ms5002e.plf Expand-Archive -Path gas_station_ge_ms5002e.plf -DestinationPath .\plf_extracted
- Building an OT Lab Topology with Network Simulation
Before export, you define routers, subnets, and services. Labshock Builder uses a declarative YAML topology. For manual replication outside Labshock, you can use Docker Compose with custom networks.
Example topology snippet for a gas station scenario (6 routers, 13 networks):
docker-compose.ot.yml
version: '3.8'
services:
router1:
image: alpine:latest
command: sh -c "apk add iptables; sysctl -w net.ipv4.ip_forward=1; tail -f /dev/null"
networks:
- net_10_0_1_0
- net_10_0_2_0
plc_tank:
image: mcr.microsoft.com/iot/opc-plc:latest
networks:
- net_10_0_1_0
networks:
net_10_0_1_0: {driver: bridge, ipam: {config: [{subnet: 10.0.1.0/24}]}}
net_10_0_2_0: {driver: bridge, ipam: {config: [{subnet: 10.0.2.0/24}]}}
Run: `docker-compose -f docker-compose.ot.yml up -d`
3. Exporting and Importing SCADA Configurations Without Breaking
The main challenge is moving SCADA software (e.g., Ignition, WinCC, Citect) that stores absolute paths and hardware identifiers. PLF solves this by containerizing SCADA services and using relative paths. To replicate manually:
- Use environment variables for paths: `%SCADA_HOME%\projects` (Windows) or `$SCADA_HOME/projects` (Linux).
- Replace PCI/COM port references with virtual device mappers like `socat` or
ser2net.
Step‑by‑step manual export of a SCADA project:
On source machine (Linux) tar -czf scada_project.tar.gz -C /opt/ignition/data/ projects/ Transfer via SCP scp scada_project.tar.gz user@target:/opt/ignition/ On target tar -xzf scada_project.tar.gz -C /opt/ignition/data/
For PLF inside Labshock, it’s a single click: `labshock export lab_name –format plf –output gas_station.plf` and labshock import gas_station.plf.
- Automating OT Lab Deployment with Infrastructure as Code
To integrate PLF into CI/CD pipelines for security training, use Terraform or Ansible to provision Labshock nodes. Example Ansible playbook to deploy a PLF lab:
- name: Deploy OT lab from PLF
hosts: labshock_servers
tasks:
- name: Copy PLF file
copy:
src: /local/path/gas_station.plf
dest: /var/labshock/imports/
- name: Import and start lab
command: labshock import /var/labshock/imports/gas_station.plf --start
register: lab_result
- name: Show lab access info
debug:
msg: "Lab running at {{ lab_result.stdout | regex_findall('(https?://[^ ]+)') }}"
Windows equivalent using PowerShell and Labshock CLI:
Copy-Item -Path "C:\labs\gas_station.plf" -Destination "D:\Labshock\imports\" labshock import D:\Labshock\imports\gas_station.plf --start
5. Simulating the Gas Station Scenario (GE MS5002E)
The post mentions a gas station based on General Electric MS5002E (a gas turbine controller). To emulate such an environment without physical hardware, use `modbus-simulator` or opc-simulator. PLF bundles these simulators with preconfigured register maps.
Manual simulation for testing:
Linux: Run Modbus TCP server simulating turbine data
pip install pymodbus
python -c "from pymodbus.server import StartTcpServer; from pymodbus.datastore import ModbusSlaveContext, ModbusServerContext; store = ModbusSlaveContext(); context = ModbusServerContext(slaves=store, single=True); StartTcpServer(context, address=('0.0.0.0', 5020))"
Then configure your SCADA to read holding registers (e.g., 40001 = turbine speed, 40002 = exhaust temp). PLF auto-configures these mappings.
6. Mitigating Common OT Lab Migration Issues
Even with PLF, issues can arise: network collisions, driver mismatches, or CPU architecture differences. Use these verification steps after import:
- Check all containers/VMs are reachable: `labshock exec router1 — ping -c 2 plc_tank`
– Validate SCADA web interfaces: `curl -I http://:8080`
– For external PLCs (physical devices mapped via USB/serial), verify passthrough:On Linux host lsusb | grep -i "plc" sudo chmod 666 /dev/ttyUSB0 Inside Labshock VM labshock device add --host /dev/ttyUSB0 --guest /dev/ttyS0
7. Integrating PLF into Cybersecurity Training Courses
Educators can build a library of portable labs: water treatment, railway signaling, oil pipeline SCADA. Each lab is a single PLF file. Students download, import, and attack in a consistent environment. Recommended course structure:
- Module 1: OT fundamentals and PLF setup – using `labshock install` (Windows/Linux).
- Module 2: Reconnaissance on imported lab –
nmap -sS -p 502,44818,80 10.0.1.0/24. - Module 3: Modbus/DNP3 injection attacks using `modbus-cli` or
cpsim. - Module 4: Defensive monitoring with `zeek` or `snort` – preinstalled in PLF.
What Undercode Say:
- Key Takeaway 1: Portable Lab Format (PLF) eliminates the “works on my machine” nightmare for OT security testing, drastically reducing setup time from days to minutes.
- Key Takeaway 2: By preserving network topology, service configs, and hardware mappings, PLF enables truly reproducible attack/defense exercises across teams, clouds, and training events.
The innovation lies not in any single technology but in the orchestration of containerization, declarative networking, and hardware abstraction tailored to legacy SCADA quirks. PLF answers a long-standing industry need: moving complex cyber-physical labs without breaking them. This will empower red teams to share realistic environments and blue teams to practice on identical setups. The gas station scenario demo shows real-world applicability. As OT environments increasingly converge with IT, portable labs become essential for rapid skill development and vulnerability research.
Prediction:
Within two years, portable lab formats like PLF will become the industry standard for OT security training and pre-engagement testing. Major vendors (e.g., Dragos, Claroty, Nozomi) will adopt or build compatible formats, allowing seamless sharing of attack scenarios and detection rules. Cloud providers will offer PLF-as-a-service, enabling on-demand, scalable OT ranges. This will lower the barrier to entry for critical infrastructure security, potentially uncovering vulnerabilities faster and standardizing defensive playbooks across sectors. However, it also risks spreading weaponized lab environments if not properly access-controlled—vendors must embed strong encryption and digital signing into PLF packages.
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