A man from Estonia has pleaded not guilty in New York to charges that he conspired in a cyberfraud that affected millions of computers worldwide.

Vladimir Tsastsin (TSAHS'-tsihn) entered the plea Friday through his lawyer in federal court in Manhattan. A prosecutor told a magistrate judge that the man arrived in the United States on Thursday after his extradition from Estonia.

He is charged with conspiracy, wire fraud and , among other crimes. Wearing jeans and a striped shirt, he listened to the court proceeding with help from a Russian translator.

He was arrested a year ago with five other Estonian citizens following a two-year probe by the FBI and Estonian authorities. His lawyer said outside court that his client is eager to deal with the case.