ATLANTA — A Russian national is accused of using fake search engine advertisements and spoofed banking websites as part of a multimillion-dollar bank account takeover scheme.

Federal prosecutors in Atlanta say 36-year-old Sergei Filimonov used phony Google and Bing bank advertisements to target unsuspecting online banking customers. He is accused of using spoofed domains designed to mimic legitimate bank websites.

Prosecutors say Filimonov obtained more than 5,000 stolen login credentials through the scheme.

Filimonov and his alleged partners attempted to obtain millions of dollars from victims’ bank accounts, including accounts belonging to two companies in North Georgia.

The FBI has tied the alleged scheme to $15 million in stolen money and about $28 million in attempted transfers.

Filimonov was extradited to the United States from the Republic of Georgia. He pleaded not guilty in federal court in Atlanta to fraud and aggravated identity theft charges.