Who remembers IRC? Clearly some hackers, as a new Linux botnet uses some incredibly old-school methods to cut costs

SSHStalker botnet uses old IRC communication, automated SSH brute-forcing, cron persistence, and cryptomining to efficiently exploit Linux servers.

source https://www.techradar.com/pro/does-anyone-even-remember-irc-a-new-linux-botnet-uses-some-incredibly-old-school-methods-to-cut-costs