The simulant discrimination between self and non-self by using strings

The natural immune system has evolved many interesting mechanisms to solve complex engineering tasks. An ongoing research on the metaphor between the immune system and the host-based intrusion detection is reported. The primary investigation focuses on the simulation of the discrimination between self-behaviors and non-self behaviors by using strings in this paper. The experiment results demonstrate that it is possible to discriminate the dangerous behaviors from others by using sequences of system calls. This work is a part of a research program aiming at building computer security systems that incorporate the mechanisms and algorithms used by natural immune systems.