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Mac Systems Hit with Java-Based Trojan

Variants of the Flashback trojan have reportedly infected more than half a million Macs around the globe. The malware was first reported in 2011, but a strain released this week is designed to exploit an unpatched Java vulnerability in Mac OS X. BackDoor.Flashback.39 self installs once a user visits either a compromised or malware-laden website. Although Oracle released a patch for the vulnerability in February, Apple didn’t release it until this week. Dr. Web, a Russian antivirus company, claims there are at least 600,000 infected computers worldwide. According to the BBC, Dr. Web researchers found the greatest number of bots are located in the US, Canada, UK, and Australia, which suggests it is targeting English-speaking Mac users. They also found that 274 infected computers detected are located in Cupertino, California, which is where Apple’s headquarters are located. F-Secure has released instructions on its website guiding users to use the Terminal to find out whether their systems are infected. (Ars Technica)(BBC)(Dr. Web)(F-Secure)

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