The Microcosmic Model of Worm Propagation

Friday, 27th April 2012, 2:00 pm (PDCC Meeting Room)
Speaker: Professor Wanlei Zhou (Deakin University, Melbourne, Australia)
Title: The Microcosmic Model of Worm Propagation

Each year, large amounts of money and labor are spent on patching the vulnerabilities in operating systems and various popular software to prevent exploitation by worms. Modeling the propagation process can help us to devise effective strategies against those wormsí spreading. In this talk we present a microcosmic analysis of worm propagation procedures. Our proposed model is different from traditional methods and examines deep inside the propagation procedure among nodes in the network by concentrating on the propagation probability and time delay described by a complex matrix. Moreover, since the analysis gives a microcosmic insight into a wormís propagation, the proposed model can avoid errors that are usually concealed in the traditional macroscopic analytical models. The objectives of this talk are to address three practical aspects of preventingworm propagation: (i) where do we patch? (ii) how many nodes do we need to patch? (iii) when do we patch? We also carried out a series of experiments to evaluate the effects of each major component in our microcosmic model. This talk will be based on the following two papers:

1. Yini Wang, Sheng Wen, Silvio Cesare, Wanlei Zhou and Yang Xiang, "The Microcosmic Model of Worm Propagation", The Computer Journal, Vol. 54 No. 10, pp. 1700-1720, 2011
2. Yini Wang, Sheng Wen, Silvio Cesare, Wanlei Zhou, and Yang Xiang, "Eliminating Errors in Worm Propagation Models", IEEE Communication Letters, VOL. 15, NO. 9, pp. 1022-1024, SEPTEMBER 2011.


Professor Wanlei Zhou received the B.Eng (Computer Science and Engineering) and M.Eng (Computer Science and Engineering) degrees from Harbin Institute of Technology, Harbin, China in 1982 and 1984, respectively, and the PhD degree from The Australian National University, Canberra, Australia, in 1991. He also received a DSc degree (a higher Doctorate degree) from Deakin University in 2002 for his ìsubstantial contribution to knowledge and authoritative standingî in the field of distributed computing. He is currently the Chair Professor in Information Technology and Head of School, School of Information Technology, Deakin University. Before joining Deakin University, Professor Zhou has been a system programmer in HP at Massachusetts, USA; a lecturer in Monash University, Melbourne, Australia; and a lecturer in National University of Singapore, Singapore. His research interests include theory and practical issues of building distributed systems, security of computer networks and systems, bioinformatics, and e-learning.

Professor Zhou has published more than 200 papers in refereed international journals and refereed international conferences proceedings, and have received a number of grants from ARC. He has also chaired a number of international conferences. Prof Zhou is a Senior Member of the IEEE.