Survey of Attacks and Security Schemes in MANET

The Mobile Ad hoc Network (MANET) is forming the temporary network without any supervision of any administration. The attacker can easily corrupt the information of this dynamic network because of absence of supervision system. The routing is a problem in a decentralize environment where the topology fluctuate the node easily moves in a environment. In MANET, all networking functions such as routing and packet forwarding, are performed by nodes themselves like a self-organizing manner. For these reasons, securing a mobile ad hoc network is very difficult. The Advanced Persistent Thread (APT) reacts the malware misbehavior in network like virus, trojan and worms. The term “Advanced Persistent Threat” is used for a varity of cyber threats. This specific characteristic of MANET has provided it susceptible to security attacks which results in degradation in the performance characteristics as well as raises a serious problem about the reliability of such networks. In MANET, uncooperative node is malicious node that functions as a malware and infected the network performance. The nodes that are faulty and therefore cannot follow a protocol, or are intentionally malicious and try to attack the system. The Intrusion Detection System (IDS) can secure network from APT but difficult to design it. In this paper, we will address the different types of attacks and their security schemes. There is no work is done to protect MANET from unauthorized access through APT. These attacks can degrades the network performance and also the security schemes that are protecting the network from attacks.