The growth of the increased number of vehicles are equipped with wireless transceivers to communicate with other vehicles to form a special class of wireless networks, known as vehicular ad hoc networks or VANETs. Security is one of the safety aspects in VANET. Network Security plays a very important role within event of the VANETs. Due to the unreliable communications in VANETs, security protocols would like a lot of concerns, like privacy, authentication, and consistency of messages. However, VANETs are themselves vulnerable against attacks that can directly lead to the corruption of networks and then possibly provoke big losses of time, money, and even lives. In this paper we proposed Enhanced Malicious Packet Detection Algorithm (EMPDA) which is used to verify and detect the malicious nodes creating DoS (Denial of Service) attack.
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