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The code was set to run as lowest possible priority in the infected device to avoid interference and included a watchdog to make sure normal operations of the host weren't overloaded. It also carried a readme file with a description of the project and an email address for the owner, or law enforcement, to get in touch if it was discovered.
After releasing the code overnight the report's writer found 420,000 suitable botnet endpoints, accounting for around a quarter of the total number of suitable IPv4 systems with enough CPU and RAM and which ran Linux. The botnet was able to spread quickly and efficiently just using the four login combinations and was soon reporting back in healthy numbers.