6 research outputs found
Development of a multi-layered botmaster based analysis framework
Botnets are networks of compromised machines called bots that come together to form the tool of choice for hackers in the exploitation and destruction of computer networks. Most malicious botnets have the ability to be rented out to a broad range of potential customers, with each customer having an attack agenda different from the other. The result is a botnet that is under the control of multiple botmasters, each of which implement their own attacks and transactions at different times in the botnet. In order to fight botnets, details about their structure, users, and their users motives need to be discovered. Since current botnets require the information about the initial bootstrapping of a bot to a botnet, the monitoring of botnets are possible. Botnet monitoring is used to discover the details of a botnet, but current botnet monitoring projects mainly identify the magnitude of the botnet problem and tend to overt some fundamental problems, such as the diversified sources of the attacks. To understand the use of botnets in more detail, the botmasters that command the botnets need to be studied. In this thesis we focus on identifying the threat of botnets based on each individual botmaster. We present a multi-layered analysis framework which identifies the transactions of each botmaster and then we correlate the transactions with the physical evolution of the botnet. With these characteristics we discover what role each botmaster plays in the overall botnet operation. We demonstrate our results in our system: MasterBlaster, which discovers the level of interaction between each botmaster and the botnet. Our system has been evaluated in real network traces.
Our results show that investigating the roles of each botmaster in a botnet should be essential and demonstrates its potential benefit for identifying and conducting additional research on analyzing botmaster interactions. We believe our work will pave the way for more fine-grained analysis of botnets which will lead to better protection capabilities and more rapid attribution of cyber crimes committed using botnets
Situación actual del cribado neonatal de enfermedades metabólicas en España y en el mundo
Newborn screening programs are key players in a country?s public health strategies, preventing the burden of care associated with the screened disorders. Its importance has dramatically intensified in recent years due to the increasing number of disorders that fulfil criteria for screening. Since the 1960s, many countries implemented newborn screening programs that are now, at least in developed countries, universal, well established, and with excellent results. Nevertheless, much work is still to be done, mainly in developing countries of Africa, Asia, and South America. In some European countries, including Spain, uniformity of screening panels between different regions is still a challenge, being a source of health inequalities between citizens. The authors will present the current status of newborn screening programs in Spain and integrate it into the current European and world scenario.Los programas de cribado neonatal (PCN) son clave en las estrategias de salud pública de una región determinada, establecidas para prevenir los daños asociados a las patologías cribadas. Su importancia se ha intensificado sustancialmente en los últimos años debido al creciente número de trastornos en los que diferentes organismos de evaluación han demostrado el beneficio de su detección temprana para el recién nacido. Desde los años 60-70 del siglo pasado, muchas regiones implementaron de PNC que hoy en día, al menos en los países desarrollados, son universales, bien establecidos y con excelentes resultados. Sin embargo, aún queda mucho por hacer, principalmente en países en vías de desarrollo de África, Asia y América del Sur. En algunos países europeos, incluida España, una mayor uniformidad entre los paneles de cribado de las diferentes regiones continúa siendo un reto, pues conduce a desigualdades en materia de salud. Los autores presentan el estado actual de los PCN en España y lo contextualizan en el escenario real europeo y mundial
2016 Proceedings: Religious Values
Paving the Way to Global Christian Citizenshiphttps://knowledge.e.southern.edu/reysymp/1004/thumbnail.jp
Principal Inv estigator/Project Director: Prof. Nicholk Zabaras
As part of this continuing DMI-funded NSF project, a novel e#cient andmathematicalq rigorous continuum based sensitivity method is being develD ed that can be used to accuratel evalT]O the gradients of the objective function and constraints in the design optimization of mulwwfi]fiDj deformation processes. The sensitivity methods develD edalk w for a unified treatment of both shape and parameter sensitivity anal[fifi that are present in a typical design probln of mul]TxDjxfi deformation processes. The continuum sensitivity method was recentl extended to thermoplxwkOxD y combined withductil damage at finite strains. The computed sensitivityfielx are used within the develD ed gradient-based optimization framework for the computational design ofmetal forming processes for porousmaterialD The e#ectiveness of the proposed methodol[k is demonstrated with the solw[Tfi ofpractical problca in the design of one-stage and two-stagemetal forming processes.