Distributed Denial of Service (DDoS) exploits client/server technology to combine multiple computers and form a platform to initiate an attack against one or more targets, which poses a threat that is orders of magnitude greater than that of a denial of service attack.
Malformed packets indicate Frag flood, Smurf, Stream flood, Land flood attacks, IP malformed packets, TCP malformed packets, and UDP malformed packets.
Transport-layer DDoS attacks indicate SYN flood, Ack flood, UDP flood, ICMP flood, and RST flood attacks.
Web application-layer attacks indicate HTTP Get flood, HTTP Post flood, and HTTP flood attacks.
DNS DDoS attacks indicate DNS Request flood, DNS Response flood, valid and invalid source DNS Query flood attacks, and authoritative server and local server attacks.
Connection DDoS attacks indicate TCP slow connection attacks, connect exhaustion attacks, Loic, Hoic, Slowloris, Pyloris, and Xoic among other slow attacks.