Half A Million Mac Computers Infected

April 5, 2012 by staff 

Half A Million Mac Computers Infected, A long time ago, one of the reasons to get a Macintosh computer was that there were few nasty viruses or other malicious junk floating around that could affect your machine. However, this kind of attitude can only lead to trouble and now the Russian security company Doctor Web says that one particular trojan called Backdoor.Flashback.39 has infected over 550,000 Apple computers.

In a botnet, infected computers receive commands via the Internet from malicious operators. The collective power of these infected machines can be used to bring down websites, send spam en masse, or whatever the botnet’s operator has in mind. For instance, one version of the Flashback trojan modifies the content of webpages viewed by the user.

The Flashback trojan has been around for a while, and has seen various permutations along the way. According to Doctor Mac, computers infected by one variant of the trojan are concentrated in the United States — about 60% of the total infection. The next largest area is Canada representing 20% of the total infected computers, and the U.K. with 13%.

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