The US says a Chinese national operated the “911 S5” botnet, which included computers worldwide and was used to file hundreds of thousands of fraudulent Covid claims and distribute CSAM, among other crimes.
https://www.wired.com/story/911-s5-botnet-arrest/?utm_source=dlvr.it&utm_medium=blogger
https://www.wired.com/story/911-s5-botnet-arrest/?utm_source=dlvr.it&utm_medium=blogger