The Microsoft Exchange ProxyShell vulnerabilities are being exploited yet again for ransomware, this time with Babuk from the new “Tortilla” threat actor.
https://threatpost.com/tortilla-exchange-servers-proxyshell/175967/
Where the Latest Log4Shell Attacks Are Coming From
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Analysts find at least 10 Linux botnets actively exploiting Log4Shell flaw.
https://threatpost.com/log4shell-attacks-origin-botnet/176977/