Question 1
What is a botnet?
Answer
In the term
"botnet" as used here, the "bot" is short for robot. A
single bot is a software program that can, when surreptitiously installed on a
person's computer, execute certain specified commands. Botnet is a network of
autonomous malicious software agent there are under the control of a bot
commander. The network is created by installing malware that exploits the
vulnerabilities of Web servers, operating systems, or application to take
control of the infected computers.
Question 2
Describe some of the main
points of the Digital Agenda of Europe.
Answer
The main point of the
Digital Agenda of Europe is to define the key role that information and
communication technologies will play in 2020.The initiative calls of a single, open Europe digital market. Another
goal is that broadband speed of 30Mbps be available to all European citizen by
2020 in term of security, the initiative is considering the implementation of
measure to protect privacy and the establishment of a well-functioning network
of CERT to prevent cybercrime and respond effectively to cyber attacks. The
European Commission has proposed a Digital Agenda. Its main objective is to
develop a digital single market in order to generate smart, sustainable and
inclusive growth in Europe.
What are the obstacles
hindering the Digital Agenda?
- fragmented digital markets;
- lack of interoperability;
- rising cybercrime and risk of low trust
in networks;
- lack of investment in networks;
- insufficient research and innovation
efforts;
- lack of digital literacy and skills;
- missed opportunities in addressing
societal challenges
Question 3
Explain how a cyber-attack
can be carried out.
Answer
There are 3 basic parts to a cyber-attack:
- Access: a method to get inside or gain access to a
network or system
- Vulnerability: some part of the system that the attacker
can take advantage of or manipulate
- Payload: the purpose of the attack, namely, what
exactly is the target and how significant will the damage
There are many other forms
cyber-attacks may take.
Denial Of Service attack occurs when “an attacker attempts to prevent legitimate users
from accessing information or services.” This is typically accomplished when
the attacker overloads a system with requests to view information. This would
be an example of a remote attack.
Spear phishing is another simple method by which an attack may gain access to a
computer system or network. Once some information about a target is acquired,
an email is sent purporting to be from a legitimate company asking for
information such as usernames and passwords to banking websites or network
logins.
Backdoors, or hooks, are placed inside a computer or network in order to create a
vulnerability that can be exploited later on.
And tampering with basic electronics is a simple type of cyber-attack. It is also
possible that such software or even hardware could be installed into
electronics by the original manufacturer
Question 4
Describe some of the
weaknesses exploited by malware.
Answer
Malware, known as Stuxnet
is a shorthand term that encompasses all types of malicious software. This
includes viruses, worms, Trojan horses, spyware, and all other types of
software that get put onto your computer without you knowing it. Some of
weaknesses of malware is it hidden in shortcuts to executable programs (files
with extension. Ink) was executed automatically when the content of an infected
USB drive was displayed as the malware is propagated via USB.
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