2010
02.25

The takedown of the Waledac botnet that Microsoft executed this week – known internally as “Operation b49” – was the result of months of investigation and the innovative application of a tried and true legal strategy.

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In a recent analysis, Microsoft found that between December 3-21, 2009, approximately 651 million spam emails attributable to Waledac were directed to Hotmail accounts alone, including offers and scams related to online pharmacies, imitation goods, jobs, penny stocks and more.

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This action has quickly and effectively cut off traffic to Waledac at the “.com” or domain registry level, severing the connection between the command and control centers of the botnet and most of its thousands of zombie computers around the world.

via The Official Microsoft Blog – Cracking Down on Botnets.

Well done.

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