The United States Federal Bureau of Investigation and Department of Justice dealt a blow to a sophisticated Russian botnet that security researchers referred to as VPNFilter. They did it  by seizing a key domain used to perpetuate the attacks. In doing so, the agencies effectively disrupted a malicious effort that was able to infect hundreds

Source: Hot Hardware – FBI Seizes Russian Botnet After VPNFilter Malware Infects 500K Routers Worldwide