Posted by: David Harley | April 25, 2012

Typhoid MacMary

You probably know that it’s been estimated that a hefty 1% or so of Macs are or have been infected with OSX/Flashback. According to figures from Sophos, though, 2.7% of machines onto which Sophos’s Mac AV has been installed have been infected with some form of malware, while a startling 20% are carrying some form of Windows malware. That might not seem a problem to Mac users who aren’t directly impacted by malware that can’t run on their system. However, it seems that we might be in danger of a return to the 1990s scenario where Mac users with no AV caused a major nuisance by spreading macro-infected documents that hardly ever caused direct damage to their own systems but did pose a threat to friends and workmates. (Hat tip to Chet Wisniewski for the heads-up at Infosecurity Europe.)

Meanwhile, Alexis Dorais-Joncas of ESET Canada has followed up on a previous blog concerning the OSX/Lamadai malware: OS X Lamadai: Flashback isn’t the only Mac malware threat. Nice content, beautifully edited. ;-)

David Harley CITP FBCS CISSP

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