Intel agencies issue guidance to protect against Russian botnet

U.S. and international authorities on Tuesday urged owners of routers used in a Russian botnet operation to ensure the devices cannot still be exploited by malicious actors.

The additional warning came a week after a coordinated international action by the FBI and others disrupted a Russian GRU-led hacking campaign that infiltrated more than a thousand home and small business routers that were used to carry out cyber espionage around the globe.

Dubbed Operation Dying Ember, it was first announced by FBI Director Christopher Wray in remarks at the Munich Security Conference. It marked the latest effort by U.S. law enforcement, led by the bureau and the Justice Department, to combat digital criminal groups — including a similar action earlier this month that knocked off Chinese government-sponsored hackers from hundreds of home and small business routers that were allegedly used to target American infrastructure networks.