The Scientific World Journal

Research Article

Fusion of Heterogeneous Intrusion Detection Systems for Network Attack Detection

Table 2

Most relevant features for each attack and information gain measures.


Attack type	Attack pattern	Igsum value	Various combination of features giving high information gain value

PROBE	ipsweep	0.82	2, 3, 5, 12, 13, 14, 16, 17, 21, 23, 24, 25, 28, 31, 32, 33, 37, 38
	nmap	0.27	1, 2, 3, 5, 18, 21, 22, 28, 29, 31, 32, 34, 35, 36, 37
	portsweep	0.58	3, 4, 10, 24, 27, 29, 34, 35, 36, 37, 41
	satan	0.75	1, 3, 5, 11, 15, 19, 23, 24, 25, 27, 28, 29, 30, 31, 32, 35, 39, 40, 41
	mscan	1.11	1, 3, 4, 5, 7, 12, 17, 21, 25, 27, 28, 29, 31, 33, 35, 39, 40, 41
	saint	0.33	1, 5, 7, 12, 16, 24, 25, 29, 32, 33, 34, 35, 37, 38, 40

DOS	back	0.38	1, 2, 4, 5, 6, 10, 11, 12, 13, 15, 17, 18, 21, 22, 23, 26, 27, 28, 30, 31, 34, 35, 37, 41
	land	0.0009	1, 2, 3, 4, 7, 13, 18, 25, 29, 35, 38
	neptune	7.73	1, 3, 4, 5, 6, 7, 13, 15, 17, 19, 20, 26, 28, 29, 30, 31, 33, 34, 35, 38, 39
	pod	0.052	2, 3, 5, 7, 8, 9, 10, 11, 17, 19, 21, 23, 26, 33, 34, 39, 40
	smurf	0.68	2, 3, 5, 8, 17, 23, 24, 25, 26, 29, 33, 35, 36, 38, 39
	teardrop	0.27	3, 4, 5, 6, 8, 10, 13, 23, 24, 25, 26, 32, 34, 35, 36, 37, 39, 40

U2R	Buffer_overflow	0.0086	1, 2, 3, 5, 6, 7, 8, 9, 10, 14, 21, 23, 29, 30, 31, 32, 33, 36, 38, 39, 40
	loadmodule	0.0058	1, 2, 3, 4, 7, 8, 14, 27, 36, 39, 40
	rootkit	0.0035	3, 6, 9, 11, 13, 14, 16, 17, 18, 23, 28, 31, 32, 33, 34, 35, 37, 39, 41

R2L	guess_passwd	0.025	2, 3, 4, 6, 9, 10, 11, 13, 14, 17, 21, 23, 24, 37, 38, 39, 40, 41
	imap	0.0035	3, 4, 5, 6, 10, 12, 20, 23, 25, 27, 29, 30, 3233, 34, 36, 38, 39, 41
	multihop	0.0024	3, 4, 10, 12, 13, 14, 16, 17, 18, 19, 22, 26, 27, 30, 35, 37
	phf	0.0021	3, 4, 6, 8, 9, 10, 13, 14, 19, 28, 29, 36
	spy	0.0003	2, 3, 4, 5, 9, 15, 18, 22, 16, 39
	warezclient	0.21	3, 4, 5, 6, 10, 12, 14, 16, 24, 27, 28, 29, 30, 32, 33, 34, 35, 37, 38, 39, 40, 41
	warezmaster	0.008	1, 2, 3, 4, 6, 12, 13, 14, 16, 17, 19, 22, 23, 24, 31, 35, 36, 37, 39

Normal		11.96	1, 2, 3, 4, 5, 6, 7, 15, 23, 24, 14, 15, 19, 20, 21, 23, 25, 26, 27, 28, 30, 32, 33, 34, 36, 37, 38