With the rapid growth of computer networks during the past few years, security has become a crucial issue for modern computer systems. A good way to detect illegitimate use is through monitoring unusual user activity. This can be achieved with an Intrusion Detection System, which identifies attacks and reacts by generating alerts or by blocking the unwanted data/traffic. These systems are mainl...

The study examined the detection of attacks against computer networks, which is becoming a harder problem to solve in the field of Network security. A problem with current intrusion detection systems is that they have many false positive and false negative events. Most of the existing Intrusion detection systems implemented depend on rule-based expert systems where new attacks are not detectabl...

In this whitepaper we briefly describe Masibty, a novel anomaly-based web application firewall we devised. It has a modular and extensible structure. We give an overview of the anomaly detection models we implemented in it, and show that it is able to detect different kind of real world attacks on common web applications. We also evaluate its performance as an IPS, using both plain and mutated ...

Nowadays the organizations are facing the number of threats every day in the form of viruses and attack etc. Since many different mechanisms were preferred by organizations in the form of intrusion detection and prevention system to protect its organizations from these kinds of attacks. Intrusion Detection System (IDS) is considered as a system integrated with intelligent subsystems. In this pa...

Cryptographic systems are the most widely used techniques for information security. These systems however have their own pitfalls as they rely on prevention as their sole means of defense. That is why most of the organizations are attracted to the intrusion detection systems. The intrusion detection systems can be broadly categorized into two types, Anomaly and Misuse Detection systems. An anom...

This strategy is mainly focus on to detect intrusion in multitier web applications. Multitier web application include two ends that is front end as well as back end of the applications. The front end include web server which can responsible to run the application and gives that output to back end i.e. file server. This strategy is useful to identify the intrusion at both front end and back end ...

Intrusion detection technology is a research hotspot in the field of information security. This study introduces the types of traditional intrusion detection and data mining technology; Aiming at the defects and limitations of current intrusion detection system, the study has fused the data mining technology into intrusion detection model, and has designed and implemented the intrusion detectio...

-------------------------------------------------------------------ABSTRACT-----------------------------------------------------------------With the increase in the number of security threats, Intrusion Detection Systems have evolved as a significant countermeasure against these threats. And as such, the topic of Intrusion Detection Systems has become one of the most prominent research topics i...

Intrusion detection plays one of the key roles in computer system security techniques. This paper is dedicated to this topic. It describes major approaches to intrusion detection and focuses on methods used by intrusion detection systems. We do not describe in this paper details of existing intrusion detection system. Instead, we concentrate on underlying principles and methods. This paper can ...

A Swarm-intelligence-based intrusion detection technique is proposed to in order to reduce the misjudgment & misdetection and increase the real-time response in the existing intrusion detection techniques show. Separating a huge and complicated intrusion detection system into severer independent detection units with unique function so that the amount of detection data processing and the complex...