A new ransomware variant targeting VMware ESXi has been wreaking havoc on organizations worldwide since early February. Dubbed ESXiArgs, the ransomware has breached and encrypted thousands of servers as of February 10. Attackers are exploiting unpatched instances of the two-year-old ESXi OpenSLP Heap Overflow Vulnerability CVE-2021-21974 to gain access and deploy ESXiArgs.
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