The essential component in WSN are the Intrusion Detection Systems. As the network technology is growing rapidly, the main focus of intrusion detection has shifted from simple signature matching approaches to detecting attacks based on analyzing contextual information. It may be specific to individual networks and application. Because of this reason, hybrid and anomaly intrusion detection approaches have gained significance. some of the common attacks that affect network resources are Denial of

more »

... Service Attacks (DoS), Probe, User to Root (U2R) and Remote to Local (R2L) [1]. Intrusion detection faces a number of challenges like it must reliably detect malicious activities in a network and cope up with large amount of network traffic. We demonstrate that high attack detection accuracy can be achieved by using some features.