In early April a botnet consisting of an estimated 100,000 PCs apparently destroyed itself as its control server send out a command that made Windows inoperable. The botnet was based on the Zeus [rsa.com] botnet tool kit, which allows criminals to infect and subsequently remotely control users PCs. The relentless rise in COVID-19 cases is battering already frayed healthcare systems and ransomware criminals are using the opportunity to strike. In all, Nvidia patched flaws tied to 16 CVEs across its graphics drivers and vGPU software, in its first security update of 2021.
Source: https://threatpost.com/zeus-botnet-self-destructs-051109/72697/