A Novel Immune-Inspired Shellcode Detection Algorithm Based on Hyperellipsoid Detectors

Table 1

Detection performance for polymorphic shellcodes.

Genetic variation generation	Ordinary shellcodes		Polymorphic shellcodes
	Static detection	ISDA	Static detection	ISDA
0	78.5	82.1	67.8	82.8
100	82.2	86.0	70.2	86.1
200	85.7	90.9	74.3	89.6
300	88.1	91.8	76.1	90.9
400	89.7	92.9	78.7	92.3
500	90.4	93.6	79.5	92.4