| Category | Different Attack Type within its category |
| R2L | ftp write, guess passwd, httptunnel, imap, multihop, named, phf, sendmail, snmpguess, spy, snmpget attack, xlock, xsnoop, ware z-client, worm, ware zmaster |
| DoS | apache2, back, cesstable, land, prosmurf, mailbomb, udpstorm, neptune, teardrop, pod |
| Probe | ipsweep, saint, mscan, port sweep, nmap, satan |
| U2R | sqlattack, load module, ps, root kit, buffer overflow, perl, xterm |