Distributed Denial of Service (DDoS) Attacks - Comparative Impact Analysis and Mitigation Techniques: A Survey

Cyber Security, Computer Engineering, Information Technology

In this digital era, networks and their capacities are continuously growing and significantly increasing their market space. Attackers are improving their skills and developing tools based on new concepts in cyber security to stay ahead in hacker’s world by considering how it is powerful, easy to use and cost effective. Distributed Denial of Service (DDoS) attacks are furious problem with the internet services and the networks. This attacks are massively fired by distributing malicious computers. These attacks can be carried out in various forms such as servers crashing, router crashing, overwhelming the network with high traces, damaging server critical resources etc. These attacks have become very complex with respect to time scale such that existing security algorithms are not that much sufficient to counter and protect against this attacks. In North America 50% of companies experienced a DDoS attack. 83% of victims were attacked more than once. 54% of victims were hit more than 6 times. In past, few years DDoS attacks have signed noticeable damage to the targeted network’s availability such as websites, online services and applications. Today anyone with black hat mindset can launch the attack. Availability of tools and cost effective attack services have made DDoS attacks more dangerous and more temporal than ever. In order to be in safe side from this attacks, it must be detected and mitigated quickly before the legitimate user access the target of attackers. In this paper, we are carrying out extensive survey of mitigation techniques and impact analysis.

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