IoT - Medical Device Custom Protocol

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IoT - Custom Server for legacy medical device protocol

During the early phase of my career, I was assigned a challenging project to retrieve data from an old medical device. This device was outdated, and the manufacturing company was no longer in business, leaving us with no available documentation. The primary goal was to access and interpret the data being sent by this device, which used a proprietary and obsolete communication protocol.

To tackle this problem, I utilized Burp Suite to intercept and analyze the data packets being sent by the device. By carefully studying the intercepted data, I reverse-engineered the communication protocol. I then developed a custom server that could understand and respond to the device's communication protocol, enabling successful data retrieval. This involved setting up a man-in-the-middle relay to capture the traffic and using tools like MITM_RELAY to convert and relay the data between the device and our server.

The project leveraged several advanced tools and techniques. Burp Suite was instrumental in intercepting and analyzing the non-HTTP traffic from the medical device. I also used MITM_RELAY to handle the protocol conversion. The custom server was built using Python, which provided the flexibility needed to handle the specific requirements of the obsolete protocol. Additionally, this server was deployed on a cloud infrastructure, ensuring reliable access and scalability as needed. This setup allowed us to successfully connect to the device and retrieve the necessary data for further analysis.

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