The size of the botnets found and the attack command
analysis in Section 3.3 give an idea how powerful the
DDoS attacks can strike targets. The average number
of 185 DoS threads used by the attackers can lead to a
multithreaded attack with near the full available bandwidth
between the bot and the victim. If several thousand
bots simultaneously send such a large number of
requests, small- or even medium-sized servers often cannot
cope with this number of concurrent requests.