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Snort is an open source Intrusion Detection System (IDS) that uses a rule-based approach to detect different kinds of malware, online attacks, vulnerabilities, etc. The performance of a Malware Detection System (MDS) deployed in a large network depends on the nature and type of rules stored in its database. As the number and type of attacks are increasing, more number of rules are appended in the...
Anomaly based DDoS detection involves deviation from thresholds set in normal condition. This deviation can be used for estimating number of attackers. We use ns-2 as simulation test bed for launching DDoS attacks using well known DDoS attack tools with varied number of attackers. A new relationship is established between estimated number of attackers and drift from normal value using Regression....
Today distributed denial of service (DDoS) attacks is a major problem to the availability of Internet services. Several schemes have been proposed for countering DDoS attacks directed at an Internet server, but they suffer from a range of problems, some of them being impractical and others not being effective against these attacks. In this paper we propose a dynamic rate throttling technique that...
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