Police Target Two Worldwide Cybercrime Networks
Deputy U.S. Attorney General
"Gameover Zeus is the most sophisticated and damaging botnet [network of computers that communicate with its creator] we have ever encountered," said Cole.
Gameover Zeus used malicious software to steal a victim's banking password so the criminals could take money out of victim's bank accounts.
A second scheme was called "Cryptolocker." It used a computer virus to encrypt the content of a victim's computer.
That meant users could not get to family photographs, tax records, emails, and other important files.
The cyber crooks demanded ransom, often in the form of hundreds of dollars worth of the cyber currency bitcoin, to unlock the computer. Officials say the scheme infected hundreds of thousands of computers and netted tens of millions of dollars in ransom.
"We fully expect that these schemes will re-emerge and will evolve as the criminals target and infect new victims," said Caldwell.
The investigation involved private computer companies around the world and authorities in many nations, including
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