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There are different types of computer worms like email worms, IRC worms, network worms, e.t.c. silent worms are network worms which have a hit-list of vulnerable hosts and limits the number of infection activities of each copy to suppress anomaly network activities of each infected host. There are different techniques which use aggressive nature of network worms as a clue to detect network worms but...
The problems related to security for network systems are relative to the design of network architectures, which is typically based on open standards. Monitoring tools based on pattern recognition or behavioral analysis is typically used to ensure network security. SNORT is one such tool which is based on pattern recognition. SNORT alerts system administrators whenever it receives packets of information...
Due to the tremendous growth of the Internet and Network based services, the severity of network based computer attacks have significantly increased. Thus, IDS play a vital role in network security. Intrusion detection system tries to detect computer attacks by examining various data records, log audits etc. Many existing IDS such as Snort are signature based system. The problem with such a system...
Distributed denial-of-service (DDoS) attacks are a significant problem because they are very hard to detect, there is no comprehensive solution and it can shut an organization off from the Internet. The primary goal of an attack is to deny the victim's access to a particular resource. DDoS is implemented using source IP address spoofing. This paper provides a framework for detecting the attack and...
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