https://www.theregister.co.uk/2018/05/24/fbi_vpnfilter_botnet/

The FBI says it is taking steps to stop the spread of the VPNFilter malware and botnet, warning that it's a national security issue.

The bureau's offensive includes seizing a domain believed to have been used as part of the command and control structure for VPNFilter's 500,000-strong network of infected routers and storage devices.