For those curious about what happened to infect so many MacOS systems with Flashfake/Flashback, this detailed Kaspersky analysis may be of interest: 

    http://www.securelist.com/en/analysis/204792227/The_anatomy_of_Flashfake_Part_1

It's a good reminder of the effectiveness of social engineering and the dangers of unpatched software (from Apple to WordPress users to individual Macintosh users). 

-Dean W. 

On Apr 20, 2012, at 8:38 AM, Dean Williams wrote:

Keeping operating systems, particularly Microsoft Windows, up to date with security patches has always been critical for safe computing, but with the recent rise in Mac-targeted malware, updates for Mac OS X aren't something to be ignored. The recent Flashback trojan specifically targets Mac OS X, having infected 600,000 Macs worldwide, including a significant number on UVM's network.

For information on how to protect your Macintosh and how to tell if it's infected, please see: 

   http://www.uvm.edu/it/etssecurity/13608 

My thanks to Jonathan Trigaux of ETS Client Services for developing the article linked above.  

Dean Williams        

Information Security Officer                               
Enterprise Technology Services      
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Find information security news, best practices, and how to report concerns on the UVM Computing Web site: 

http://www.uvm.edu/it/security