The number of malware samples that use P-to-P communications has increased fivefold in the past 12 months. The largest contributors to this increase are advanced threats like ZeroAccess, Zeus version 3 and TDL4. Cybercriminals are looking into decentralized communications, where botnet clients can relay commands to one another. The reason why this is happening now has to do with cybercriminals’ desire for resiliency in the face of takedown efforts that can disrupt centralized C&C infrastructures.”]

