<A target="_blank" href="http://www.usatoday.com/tech/news/2010-09-08-botnets08_ST_N.htm?csp=34tech&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+usatoday-TechTopStories+%28Tech+-+Top+Stories%29">Microsoft is perfecting a new way to take down botnets.</A> The company now has legal, permanent ownership of 276 web domains once used by the Waledac group. Microsoft was granted ownership after the domain owners failed to respond to a lawsuit.