In an unprecedented move, the temporary restraining order, issued Tuesday, will allow the FBI and the U.S. Marshal for the District of Connecticut to set up servers at the Internet Systems Consortium or other ISPs that would stop infected computers from continuing to spread the Coreflood virus, according to court records.

The order allows the law enforcement agencies to send commands to infected computers that stops the Coreflood virus, the DOJ said.

"Allowing Coreflood to continue running on the infected computers will cause a continuing and substantial injury to the owners and users of the infected computers, exposing them to a loss of privacy and an increased risk of further computer intrusions," wrote Judge Vanessa Byrant of the U.S. District Court for the District of Connecticut.

The DOJ and FBI have also filed a civil lawsuit and delivered criminal seizure warrants in an effort to stop Coreflood and the botnet it has created, the DOJ said.