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Coldframe: A Honeypot Mimicking Supermarket Fridge Controllers

Coldframe is a honeypot that simulates supermarket refrigeration controllers to study interactions with potential attackers. It mimics real devices and can recognize exploit attempts, providing insights into security vulnerabilities.

Coldframe is a newly created honeypot that imitates supermarket refrigeration controllers, specifically the Danfoss AK-SM 800A and Dixell XWEB. The project aims to observe how users interact with a convincing fake device, particularly in response to known vulnerabilities. The honeypot has been operational for one day and has only encountered generic scanners so far. Feedback from users familiar with these devices is encouraged.

Key facts

  • Coldframe simulates Danfoss AK-SM 800A and Dixell XWEB refrigeration controllers.
  • The honeypot is built using a single Python file and standard library.
  • It recognizes several known vulnerabilities, including CVE-2025-41450.
  • Two instances of Coldframe have been live for one day.
  • The project is based on research from eppser/danfoss-ak-sm-decoy and others.
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Show HN: Coldframe, a honeypot that poses as a supermarket fridge controller

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Coldframe: A Honeypot Mimicking Supermarket Fridge Controllers