Security Researchers Take Down 'Kelihos Botnet'

Security researchers from four different organizations brought down a botnet by turning a supposed strength of the criminals' spamming network into a fatal weakness. Experts from CrowdStrike, Dell SecureWorks, the Honeynet Project and Kaspersky Lab crippled the second-coming of the Kelihos botnet on March 21 by "sinkholing" about 118,000 bot-infected computers using the hackers' own peer-to-peer network.