Kaspersky Lab Confirms 600,000 Flashfake Botnet is Mostly Macintosh

Kaspersky Lab researchers announced that analysis of the Flashfake botnet confirms the size of the malicious network and that it consists mostly of Mac OS X machines. they were able to reverse engineer the domain generation algorithm used by the botnet, then set up a fake domain that collected requests from infected bots. The logs collected by the researchers confirm that the botnet includes more than 600,000 unique systems , more than 50% located in the U.S. In addition, analysis of the traffic collected by Kaspersky suggests that most of the infected machines are, in fact, running Apple's Macintosh OS X operating system. The botnet, Flashback, is the largest malicious network of Mac machines, and an unwelcome wake-up call for Mac users that malware - once the province of Windows systems - is a growing problem on Macs, as well.