Botnet is a combination of Cyber Attack, infection, and dissemination. Cross the Internet, the infected hosts might launch DDoS (Distributed Denial-of-Service) Attack, become a proxy sending SPAM according to commands from botmasters via some public services such as IRC, P2P or Web (HTTP) protocol. Among these command and control channel, Web-based Botnet is much difficult to detect because the command and control messages of Web-based Botnet are spread through HTTP protocol and hide behind normal Flows. In this research, we focus on analysis and detection of Web-based Botnet, detection by features - Timeslot, calculation of NetFlow, B2S(Bot to Server) and S2B(Server to Bot) of Web-based Botnet. The experimental result shows the proposed approach which uses the features mention above is good in many different topology designs. In addition, we also got nice detection rate in real network design.

Thesis (Ph.D.)--University of Wyoming, 2008. / Title from PDF title page (viewed on Nov. 11, 2009). Includes bibliographical references (p. 71-88).

Thesis (Ph. D.)--Ohio State University, 2003. / Title from first page of PDF file. Document formatted into pages; contains xiii, 265 p.; also includes graphics (some col.). Includes abstract and vita. Advisor: Terry Barrett, Dept. of Art Education. Includes bibliographical references (p. 259-265).

Thesis (M.S. in Computer Science)--Naval Postgraduate School, March 2004. / Thesis advisor(s): Cynthia E. Irvine, J.D. Fulp, Glenn R. Cook. Includes bibliographical references (p. 79-80). Also available online.

Thesis (Ed. D.)--West Virginia University, 2004. / Title from document title page. Document formatted into pages; contains v, 85 p. Includes abstract. Includes bibliographical references (p. 73-78).

Thesis (Ph. D.)--University of North Texas, Aug., 2009. / Title from title page display. Includes bibliographical references.

Thesis (Ed. D.)--West Virginia University, 2003. / Title from document title page. Document formatted into pages; contains xv, 213 p. : ill. Vita. Includes abstract. Includes bibliographical references (p. 172-183).

Patients with haematological diseases are entitled to supportive care. Considering organisational and technological development, support in the form of caring communication provided through the web is today a possible alternative. The aim of this thesis was to examine the usefulness and importance of a web-based counselling service to patients with haematological diseases. The basis for the thesis was a development project funded by the Swedish Cancer Society, which provided an opportunity to offer patients communication with a nurse through a web-based counselling service. Four studies were performed from a patient perspective. Study I had a cross-sectional design, measuring occurrence of anxiety and depression, and these variables’ associations to mastery, social support, and insomnia among patients with haematological diseases. Study II was a qualitative content analysis focusing on conditions for provision and use of the web-based counselling service. Study III used a qualitative hermeneutical approach to focus on patients’ experiences of using the counselling service. Study IV was a qualitative deductive analysis examining how communication within the web-based counselling service can be caring in accordance to caring theory. The results revealed that females of 30-49 years of age are vulnerable to experiencing anxiety. Low sense of mastery and support are associated with anxiety and/or depression. Being able to self-identify the need for support as well as appreciate the written medium are necessary conditions for the web-based counselling service to be used. The counselling service must also be part of a comprehensive range of supportive activities and web-based services to be useful. The main importance of the communication is that the patient’s influence on the communication is strengthened, and that the constant access to individual medical and caring assessment can imply a sense of safety. When patients share their innermost concerns and search for support, nursing compassion and competence can substantiate in explicit written responses. A conclusion is that there is a caring potential in communication within a web-based counselling service. To make this form of communication possible, nurses should take possession of and ensure that this medium for communication is offered to patients. Nurses should also increase their knowledge of caring communication in writing and how this possibly can impact patients.

This thesis project has been performed at (and for) a company named Strödata. The purpose of the project has been to perform a risk analysis on Strödata’s web based business system, and specifically analyze how access to the business system through smartphones would affect the risks posed to the system. This has been done to help decide if smartphone access should be enabled. An implementation of a web application which is suited for use on a smartphone has also been developed, as a proof-of-concept, to grant access to a limited part of the business system. The method used to perform the risk analysis has been CORAS, as presented by Braber et al in [1]. CORAS is a risk analysis method designed with IT-systems specifically in mind. The method is divided into seven steps. The new web application is an ASP.NET MVC3 site that uses JavaScript, jQuery and Ajax-JSON. The risk analysis showed, among other things, that the benefits of enabling smartphone access to the business system are larger than the risks it introduces. Smartphone access also opens up many new possibilities to implement interesting new features or improve old ones. The risk analysis also showed that there are risks to the system that need to be dealt with. For these, risks treatments were identified to lessen their probabilities and/or their consequences should they occur. Some treatments were completely successful in eliminating the risks they treat, others were not. However, the treatments that were not completely successful did reduce the risks far enough that perhaps they should be re-evaluated as un-/acceptable. The conclusions that can be drawn from this thesis project are that although enabling smartphone access to the business system introduces new risks to the system, the access also reduces certain risks. How costly the new risks are and how much the access reduces risks varies from company to company and from system to system. For Strödata, the reduction to certain risks was large enough to outweigh the new risks that would be introduced. Regarding the possibility to implement smartphone access to the business system, it is possible using more modern technologies, methods and frameworks; such as those mentioned above.

Este trabajo está organizado en cuatro capítulos que se resumen a continuación: Capítulo 1: Muestra cómo la web se ha ido incorporando en todas las actividades cotidianas. Contempla definiciones como tecnología, ciencia e ingeniería, particularmente la ingeniería de software que da pie al nacimiento de esta nueva disciplina: la Ingeniería Web. Ofrece un panorama general de su inserción, de la obtención de su propio espacio y la necesidad del uso de métodos y técnicas en el desarrollo de WebApp. Capítulo 2: Revisa el estado del arte de los Métodos usados en Ingeniería Web. Aplica algunos métodos a un ejemplo simple y por último se construye una tabla comparativa de los métodos vistos en este capítulo. Capítulo 3: Hace un análisis de las áreas involucradas en el diseño de aplicaciones Web teniendo en cuenta las consideraciones de diferentes autores. Capítulo 4: Trata temas relacionados con el Diseño Instruccional, el aprendizaje significativo y cómo las aplicaciones hipermedia se van insertando, casi en silencio, en el mundo educativo. Se presenta el contexto relacionado a la interacción entre la Ingeniería Web y los aspectos del Diseño Instruccional. Se analizan los beneficios que aporta, se presenta y analiza el método EISE. Capítulo 5: Conclusiones, presentación de una aplicación.