Butterfly botnet

Overview
The Butterfly botnet (also called the Mariposa botnet) was discovered December 2008, is a botnet mainly involved in cyberscamming and denial-of-service attacks. Before the botnet was dismantled on December 23, 2009, it consisted of 8 to 12 million individual zombie computers infected with the "Butterfly (mariposa in Spanish) Bot," making it one of the largest known botnets.