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Apple Insider reports that a new form of browser-based cross-platform malware can give hackers remote access to computers running Apple's OS X, Microsoft's Windows, and even Linux.



The multi-platform backdoor malware was disclosed this week by security firm F-Secure. It was originally discovered on a Colombian Transport website, and relies on social engineering to trick users into running a Java Archive file, meaning it is not likely to be a major threat.

However, its cross-platform design is unique. If users grant permission to the Java Archive, the malware will secretly determine whether the user is running a Mac, a Windows PC, or a Linux machine. When running on a Mac, the malware will remotely connect to an IP address through port 8080 to obtain additional code to execute.
  New Java malware attacks Apple's OS X along with Windows, Linux