... has resulted in an increased di culty in designing reliable security protection mechanisms ..... more ... has resulted in an increased di culty in designing reliable security protection mechanisms ... Intrusiondetection is an after the fact approach to system and network security, which aims ... The purpose of the thesis is to present a novel intrusion detection approach based on intelligent ...
An implemented system for on-line analysis of multiple distributed data streams is presented. The... more An implemented system for on-line analysis of multiple distributed data streams is presented. The system is conceptually universal since it does not rely on any particular platform feature and uses format adaptors to translate data streams into its own standard format. The system is as powerful as possible (from a theoretical standpoint) but still efficient enough for on-line analysis thanks to its novel rule-based language (RUSSEL) which is specifically designed for efficient processing of sequential unstructured data streams. The generic concepts are applied to security audit trail analysis. The resulting system provides powerful network security monitoring and sophisticated tools for intrusion/anomaly detection. The rule-based and command languages are described as well as the distributed architecture and the implementation. Performance measurements are reported, showing the effectiveness of the approach
After a brief survey of the problems related to audit trail analysis and of some approaches to de... more After a brief survey of the problems related to audit trail analysis and of some approaches to deal with them, the paper outlines the project ASAX which aims at providing an advanced tool to support such analysis. One key feature of ASAX is its elegant architecture build on top of a universal analysis tool allowing any audit trail to be analysed after a straight format adaptation. Another key feature of the project ASAX is the language RUSSEL used to express queries on audit trails. RUSSEL is a rulebased language which is tailor-made for the analysis of sequential files in one and only one pass. The conception of RUSSEL makes a good compromise with respect to the needed efficiency on the one hand and to the suitable declarative look on the other hand. The language is illustrated by examples of rules for the detection of some representative classical security breaches.
... has resulted in an increased di culty in designing reliable security protection mechanisms ..... more ... has resulted in an increased di culty in designing reliable security protection mechanisms ... Intrusiondetection is an after the fact approach to system and network security, which aims ... The purpose of the thesis is to present a novel intrusion detection approach based on intelligent ...
An implemented system for on-line analysis of multiple distributed data streams is presented. The... more An implemented system for on-line analysis of multiple distributed data streams is presented. The system is conceptually universal since it does not rely on any particular platform feature and uses format adaptors to translate data streams into its own standard format. The system is as powerful as possible (from a theoretical standpoint) but still efficient enough for on-line analysis thanks to its novel rule-based language (RUSSEL) which is specifically designed for efficient processing of sequential unstructured data streams. The generic concepts are applied to security audit trail analysis. The resulting system provides powerful network security monitoring and sophisticated tools for intrusion/anomaly detection. The rule-based and command languages are described as well as the distributed architecture and the implementation. Performance measurements are reported, showing the effectiveness of the approach
After a brief survey of the problems related to audit trail analysis and of some approaches to de... more After a brief survey of the problems related to audit trail analysis and of some approaches to deal with them, the paper outlines the project ASAX which aims at providing an advanced tool to support such analysis. One key feature of ASAX is its elegant architecture build on top of a universal analysis tool allowing any audit trail to be analysed after a straight format adaptation. Another key feature of the project ASAX is the language RUSSEL used to express queries on audit trails. RUSSEL is a rulebased language which is tailor-made for the analysis of sequential files in one and only one pass. The conception of RUSSEL makes a good compromise with respect to the needed efficiency on the one hand and to the suitable declarative look on the other hand. The language is illustrated by examples of rules for the detection of some representative classical security breaches.
Uploads