Hackers Send Anti-Capitalist Spam to Receipt Printers

Spam on receipt printers
Written by Emma Davis

A lot of internet-connected receipt printers print spam, namely the Antiwork manifesto, encouraging people to talk to colleagues about their salaries and putting pressure on employers.

The Vice Motherboard talks about printing of strange checks. In recent days, complaints about hacking of receipt printers have been actively received via Reddit and social networks (1, 2, 3, 4, 5).

printing of strange checks

Are you underpaid? You have a legally guaranteed legal right to discuss wages with colleagues. <...> Beggarly salaries exist only because people “voluntarily” agree to them.the manifesto says.

There are many similar posts on the r / Antiwork subreddit, some of which contain the same manifest. Other posts focus on worker empowerment, but they all invite the post’s reader to go to the subreddit and jump into action.

Stop using my receipt printer, folks. While it’s fun, I’d love to see it stop.states one of the posts on Reddit.
Over the past week at work, I have received about four such messages. It is very inspiring, inspirational and funny to see my boss’s face when he has to pull it out of the printer.another user writes.
Andrew Morris

Andrew Morris

Some have even suggested that spam on receipt printers is just a fake, designed to give the impression that the r / Antiwork subreddit is responsible for something illegal. However, Andrew Morris, founder of information security firm GreyNoise, told reporters that his specialists are observing how real network traffic goes to unsecured receipt printers around the world. It looks like several people are sending such messages to print all over the Internet indiscriminately.

Someone is using bulk scanning techniques to send raw TCP data to print services over the Internet. Almost every device with an open TCP 9100 port receives a pre-written document that references r / antiwork and contains employee rights messages and counter-capitalist slogans. The person or people behind this are sending print jobs from 25 different servers, so blocking one IP address is not enough.Andrew Morris says.

You may also be interested in that HP Fixed Critical Potential Worm Vulnerability in 150 Printer Models.

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About the author

Emma Davis

I'm writer and content manager (a short time ago completed a bachelor degree in Marketing from the Gustavus Adolphus College). For now, I have a deep drive to study cyber security.

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