making an website service unavailable to the users is called DOS attack

1. DoS (Denial of Service) Attack
Presented by: Y.VISHNU VARDHAN
G.JAYA CHANDRA
II/IV BTECH
I.T & C.S.E

2. Contents
● Introduction
● DoS (Denial of Service)
● Tools Required
● Methodology
● Process Explained
● Pros & Cons

3. Introduction

4. DoS (Denial of Service)

5. DoS (Denial of Service) contd.,
● Data will not be transmitted to the users
from the server
● Service will be denied due to the attack
● Attack creates clogging of data packets by
creating heavy ip traffic

6. Tools Required
● A Linux Machine
● Mono, an open source implementation of
.NET Framework
● Mono-gmcs, a C# compiler
● Loic.sh, a shell script which creates a flood
of packets

7. Methodology
A. Linux Machine

8. B. Mono

9. C. Mono-gmcs

10. D. LOIC

11. Methodology (contd.,)

13. (Contd…)
● Now, we are going to perform the attack on
the most renouned social networking site
i.e., Facebook.
● For this, we have to specify the URL in the
input column allocated for it.
● And then we set the mode to UDP because
it helps us to flood packets without the
requirement of an acknowledgement.

21. Process Explained
● The packets were appended with random
characters and are streamed into the
subnet of the server.
● As a result, a very heavy ip traffic is created
in the subnet and blocks all the packets that
are being sent by the server.
● If the server uses TCP broadcast, the hop
packets create more traffic and help the
attacker.

22. Pros & Cons
● Although, the attack can't target a specific
victim, it damages the server and its
reputation to a greater level.
● The attacker can't be traced back because,
the attacker will not receive any packet
from the server and also he uses a forged
ip address while streaming the packets.
● Heavy loss incurrence when performed on
transaction processes.

24. Thank You