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OT Protocols: DNP3

In this lab, you’ll practice analyzing and applying the DNP3 protocol. When you’re finished, you’ll have a solid understanding of how the protocol is structured, and be able to identify suspicious traffic in an operational technology environment.

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Lab Info
Level
Beginner
Last updated
Oct 13, 2025
Duration
1h 15m

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Table of Contents
  1. Challenge

    Build a DNP3 Analysis Lab

    Use a free and open source Programmable Logic Controller and python scripts to simulate a virtual OT environment that will allow you to capture and analyze DNP3 network traffic.

  2. Challenge

    Analyze DNP3 Packets

    Capture and analyze DNP3 read and write traffic to understand the basic structure and format of the protocol.

  3. Challenge

    Exploit the DNP3 protocol

    Exploit weaknesses in the DNP3 protocol to enumerate an OT device, suppress alarms and perform an injection attack.

  4. Challenge

    The Last Challenge

    Welcome to the final challenge! This is your last chance to experiment in the environment. Clicking Finish Lab will end this little world that flittered into existence just for you.

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