Earlier this week F-Secure reported the discovery of new, multi-platform Java backdoor malware affecting certain Macs. The Mac version is a PPC binary, meaning that it will run on PPC Macs and Intel Macs with Rosetta installed (Snow Leopard and earlier, and disregarding possible virtualization/emulation under Lion or Mountain Lion).
Yesterday the F-Secure report was picked up on by Mac sites like MacInTouch and—in more user-friendly detail—MacWorld. The new malware relies on some social engineering as you need to approve the installation of a Java applet from a questionable source. It was found on a Colombian website, but it is not yet known if that's the only source.
