Trailrunner7 writes "Earlier this week, Microsoft released an announcement about the disruption of the Kelihos botnet that was responsible for spam messages, theft of sensitive financial information, pump-and-dump stock scams, and distributed denial-of-service attacks. The botnet had a complex, multi-tiered architecture as well as a custom communication protocol and three-level encryption. Kaspersky Lab researchers did the heavy lifting, reversing the protocol and cracking the encryption and then sink-holing the botnet. The company worked closely with Microsoft's Digital Crimes Unit (DCU), sharing the relevant information and providing them with access to our live botnet tracking system."
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