GameOver wasn’t merely a sophisticated piece of criminal malware; it was a sophisticated intelligence-gathering tool. And as best as the investigators could determine, Bogachev was the only member of the Business Club who knew about this particular feature of the botnet. He appeared to be running a covert operation right under the noses of the world’s most prolific bank robbers. The FBI and Fox-IT team couldn’t find specific evidence of a link between Bogachev and the Russian state, but some entity seemed to be feeding Slavik specific terms to search for in his vast network of zombie computers. Bogachev, it appeared, was a Russian intelligence asset.
Garrett M. Graff in Wired.