BotD: A scalable anomaly-based Bot Detection Architecture for securing web services

The significance of anomaly detection is increasing as a result of the rapid increase in unknown attacks. With the increase in deployment of scalable web services, there is a need for developing a scalable anomaly detection mechanisms. In this paper, we propose a scalable anomaly-based Bot Detection Architecture (BotD) in which different anomaly-based bot detection algorithms can be implemented. Our architecture leverages NF scalability provided by Network Function Virtualization (NFV), and network programmability provided by Software Defined Networking (SDN). We have also proposed a loss-free state transfer technique across NFs. We have simulated our architecture using Mininet and Ryu controller, and tested the functioning of the architecture.