Designing Secure Architecture to Mitigate DDoS Attacks on Hybrid Clouds

Abstract

Cloud Computing has become the global technology enabler for corporate businesses and home users relying on IT services today. Cloud Computing offers unlimited flexible computing resources, storage and network capacity to seamlessly meet the service demands offering rental models, hosting options, virtual infrastructure, maximum utilization and availability. Cloud computing also benefits technology organizations, service providers and the home users in reducing the capital expenditure and setup costs on a regular basis. Access to high speed links and Internet availability has further led to the increase in adoption of Cloud based services by global corporates working in offices or from remote locations as well as the home users. newline newlineThis Thesis focuses primarily on designing a comprehensive infrastructure architecture for mitigating the Distributed Denial of Service attacks on Hybrid Clouds and presents a Malware detection system to mitigate Ransomware attacks. The Researcher first performed a survey to understand security issues and the impact of cyber-attacks on Cloud Computing environments. The Researcher reviewed research papers and manuscripts published between January 2012 and December 2016 on Cloud Computing, Denial of Service attacks and Malware detection and mitigation approaches. The Researcher also reviewed existing solutions to mitigate the Distributed Denial of Service attacks as well as Malware attacks. The Researcher then designed and implemented Cloud based system to detect malware for mitigating Ransomware attacks. The Researcher then designed and implemented the secure infrastructure architecture to mitigate Distributed Denial of Service attacks on Hybrid Cloud environments. Network and Application level attacks are performed on the proposed infrastructures and the results compared with single tier data center architecture design. Future research directions are also outlined in this Thesis. newline