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US law enforcement busts cybercrime rings with help from Facebook

The malware infected more than 11 million computers and caused $850 million in losses, according to the FBI

By John Ribeiro
December 12, 2012 02:36 AM ET

IDG News Service - U.S. law enforcement agencies with the help of Facebook have arrested 10 people from various countries in connection with international cybercrime rings that targeted users on the social network.

The operation is said to have identified international cybercrime rings that used variants of a malware called Yahos. The malware infected more than 11 million computers and caused more than $850 million in losses through a Butterfly botnet, which steals computer users' credit card, bank account, and other personal identifiable information, the FBI said in a statement late Tuesday.

The 10 people arrested are from Bosnia and Herzegovina, Croatia, Macedonia, New Zealand, Peru, the U.K. and the U.S.

Botnets are networks of computers that have been compromised by malware, and can be controlled remotely by cybercriminals to execute a variety of attacks including distributed denials of service.

Facebook's security team assisted the law enforcement agencies in the investigation by helping "to identify the root cause, the perpetrators, and those affected by the malware," the FBI said. Yahos targeted Facebook users from 2010 to October this year, and security systems were able to detect affected accounts and provide tools to remove these threats, FBI said.

Besides the FBI and the U.S. Department of Justice, law enforcement agencies from other countries were also involved in the operation.

John Ribeiro covers outsourcing and general technology breaking news from India for The IDG News Service. Follow John on Twitter at @Johnribeiro. John's e-mail address is

Reprinted with permission from Story copyright 2014 International Data Group. All rights reserved.
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