New Flashback malware variant found in the wild. Takes advantage of a Java vulnerability that Apple has already patched. Virus drops two files in the user’s home folder, then deletes cached Java files to avoid detection. Researchers did not indicate what this new variant was specifically designed to do or how many Macs might be infected. Last year, security researchers discovered that a piece of malware called Mac Defender was aimed at Macs until Apple released a patch at the end of May 2011. At its height, the original Flashback was estimated to be infecting more than 600,000 Macs.
Source: https://thehackernews.com/2012/04/new-flashback-malware-variant-found-in.html