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Thousands of Linux systems infected by stealthy malware since 2021
(arstechnica.com)
This is a most excellent place for technology news and articles.
So how did it get into the system to be able to scan configuration files?
Separate remote code execution vulnerability in unupdated versions of RocketMQ, a Chinese-developed messaging/streaming server, in the case of the infection described in the article. It's possible that there are a few other RCE vulns it can make use of, but 20000 of them seems unlikely.