Cat and Mouse

Ed Bott with ZDNet

The bad guys have wasted no time. Hours after Apple released this update and the initial set of definitions, a new variation of Mac Defender is in the wild. This one has a new name, Mdinstall.pkg, and it has been specifically formulated to skate past Apple’s malware-blocking code.

The file has a date and time stamp from last night at 9:24PM Pacific time. That’s less than 8 hours after Apple’s security update was released.

On a test system using Safari with default settings, it behaved exactly as before, beginning the installation process with no password required.

As PC virus experts know, this cat-and-mouse game can go on indefinitely. Your move, Apple.

Welcome to a viable amount of the market share Apple.

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