Intrusion Detction and Management

Intrusion Detection and Management over the World Wide Web

Hai Ying Luan

A Dissertation Submitted to the School of Computing Faculty of Engineering and Computing Dublin City University For The Degree of Master of Science

Supervisor: Dr Darragh O‟Brien

January 2010

Declaration

I hereby certify that this material, which I now submit for assessment on the programme of study leading to the award of Master of Science is entirely my own work and has not been taken from the work of others save and to the extent that such work has been cited and acknowledged within the text of my work.

Signed: _____________________ ID No.: _____________________ Date : _____________________

I

Acknowledgements

Firstly, I would like to thank my supervisor, Dr Darragh O'Brien, for many interesting discussions, patient correction, constructive criticism and encouragement. I would like to give special thanks to my colleague, Darren Fitzpatrick, for his help and readiness to share his knowledge throughout the course of the project. Sincere thanks are due to Declan McMullen for all his support and invaluable assistance with the proof reading of this thesis. I wish to thank Enterprise Ireland for funding the development of the software described in this thesis under its “Proof-of-Concept” scheme. Last but not least, I would like to thank my parents for their support and constant encouragement to keep going.

II

Abstract

As the Internet and society become ever more integrated so the number of Internet users continues to grow. Today there are 1.6 billion Internet users. They use its services to work from home, shop for gifts, socialise with friends, research the family holiday and manage their finances. Through generating both wealth and employment the Internet and our economies have also become interwoven. The growth of the Internet has attracted hackers and organised criminals. Users are targeted for financial gain through malware and social engineering...