Situation Element Extraction Based on Fuzzy Rough Set and Combination Classifier

Table 1

Specific classification of attack modes.

Attack type	Attack mode
DOS	apache2, back, land, mailbomb, Neptune, pod, processtable, smurf, teardrop, udpstor
Probe	ipsweep, mscan, nmap, portsweep, saint, Satan
R2L	ftp_write, guess_password, imap, multihop, named, phf, sendmai, snmpgetattack, snmpguess, 、warezmaster, worm, xlock, xsnoop
U2R	buffer_overflow, httptunnel, loadmodule, perl, ps, rootkit, sqlattack, xterm