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Over 600,000 Macs Infected By BackDoor.Flashback.39

According to a report from Dr. Web, there are over 600,000 Macs affected with the BackDoor.Flashback.39 trojan, . Systems get infected with BackDoor.Flashback.39 after a user is redirected to a bogus site from a compromised resource or via a traffic distribution system. JavaScript code is used to load a Java-applet containing an exploit. Doctor Web’s virus analysts discovered a large number of web-sites containing the code. The trojan contacts a control service. Once contact has been made it can download and run the payload on the infected machine. It can run any executable received from a server. Over 550 000 infected machines running Mac OS X have been a part of the botnet on April 4. These only comprise a segment of the botnet set up by means of the particular BackDoor.Flashback modification. Most infected computers reside in the United States (56.6%, or 303,449 infected hosts), Canada comes second (19.8%, or 106,379 infected computers), the third place is taken by …

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