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Sistema de detección de atacantes enmascarados basado en técnicas de alineamiento de secuencias

Authors: Maestre Vidal, Jorge; García Villalba, Luis Javier;

Sistema de detección de atacantes enmascarados basado en técnicas de alineamiento de secuencias

Abstract

Los ataques enmascarados constituyen la actividad malintencionada perpetrada a partir de robos de identidad, entre la que se incluye la escalada de privilegios o el acceso no autorizados a activos del sistema. Este trabajo propone un sistema de detección de atacantes enmascarados mediante la observación de las secuencias de acciones llevadas a cabo por los usuarios legítimos del sistema. La clasificación de la actividad monitorizada es modelada y clasificada en base a algoritmos de alineamiento de secuencias locales. Para la validación del etiquetado se incorpora la prueba estadística no paramétrica de Mann-Whitney. Esto permite el análisis de secuencias en tiempo real. La experimentación realizada considera los conjuntos de muestras de Schonlau. La tasa de acierto al detectar ataques enmascarados es 98,3% y la tasa de falsos positivos es 0,77 %.

Keywords

Seguridad de la información, Information security, Detección de intrusiones, Masquerader attacks, Atacantes enmascarados, Intrusion detection, Ciencia de la Computación e Inteligencia Artificial, Insider attacks, Ataques internos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green