DDoS Attack

Published on July 2016 | Categories: Types, School Work | Downloads: 55 | Comments: 0 | Views: 534
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This document describes the DDoS Attack and its working principle.

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DDoS Attack
Distributed Denial of Service (DDoS) attack is an attempt to make an online service
unavailable by over whelming it with traffic from multiple sources, from banks to news
website, and present a major challenge to make sure people cannot publish and access
important information. (digitalattackmap, 2013)
Working Principle of DDoS Attack
The main working principle of DDoS Attack is to build networks of infected computers,
known as ‘botnets’, by spreading malicious software through emails, websites and
social media. Malicious users then use these ‘botnets’ to generate floods of traffic to
overwhelm a target. For instance, ff a web page having the capacity to handle 1Gbps is
targeted with incoming 520 kbps traffic from two or three compromised hosts than
practically the server is targeted with more than 1Gbps load which it cannot handle
resulting it to slow down or completely halt. The capacity of handling the requests varies
from server to server however it is possible to compromise different attacking machines
and simulate attacks with as much Gbps as required.

Impact

Fig: Average Quarterly Peak Attack Size
(Verisign, 2014)
3.7
3.17
1.51
2.14
3.92
12.42
0
2
4
6
8
10
12
14
2013-Q1 2013-Q2 2013-Q3 2013-Q4 2014-Q1 2014-Q2
G
b
p
s

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