Abstract

Intrusion detection systems have usually been developed using large host-based components. These components impose an extra load on the system where they run (sometimes even requiring a dedicated system) and are subject to tampering or disabling by an intruder. Additionally, intrusion detection systems have usually obtained information about host behavior through indirect means, such as audit trails or network packet traces. This potentially allows intruders to modify the information before the intrusion detection system obtains it, making it possible for an intruder to hide his activities. In this document I propose work that will attempt to show that it is possible to perform intrusion detection using small sensors embedded in a computer system. These sensors will look for signs of specic intrusions. They will perform target monitoring by observing the behavior of the system directly, instead of through an audit trail or other indirect means. Furthermore, by being built in...

Citations