Botnet
The Bagle botnet (Initial discovery early 2004), also known by its aliases Beagle, Mitglieder and Lodeight, is a botnet mostly involved in proxy-to-relay e-mail spam.
The Bagle botnet consists of an estimated 150.000-230.000 computers infected with the Bagle Computer worm. It was estimated that the botnet was responsible for about 10.39% of the worldwide spam volume on December 29, 2009, with a surge up to 14% on New Year's Day, though the actual percentage seems to rise and drop rapidly. As of April 2010 it is estimated that the botnet sends roughly 5.7 billion spam messages a day, or about 4.3% of the global spam volume.
Read more about this topic: Bagle (computer Worm)