Cyber Attacks

Question 1

Wiretapping

Answer 1

Attacker eavesdrops on a network to acquire information normally at physical layer

Question 2

Port scanning

Answer 2

When an attacker uses a software like nmap that sends thousand of tcp/ip packets to well known ports to see if they’re open and tells a hacker what service or app is running on a system. This can be stopped by packet filtering firewall

Question 3

ARP poisoning

Answer 3

Used to manipulate arp cache system mapping of MAC addresses
They send incorrect MAC addresses to a system
Tricks a switch into redirecting traffic to the hacker

Question 4

Man in the middle

Answer 4

Impersonate both the sender and the receiver intercepting all traffic

Question 5

Ping of death

Answer 5

Attacker sends an icmp packet that’s too large and causes the system to crash or stop functioning

Question 6

Ping flood

Answer 6

Attacker overwhelms victims computer with a large amount of icmp echos or ping request to overload, crash or slow down the system

Question 7

Smurf attack

Answer 7

A DDOS ATTACK that is sent to a broadcast ip address connected to all the computers on a network. The attacker spoofs the return address to the victim. The victim is bombarded with reply’s from other computers

Question 8

Mitigate ddos attacks

Answer 8

Packet filtering firewall that blocks icmp packets over a certain number of block all icmp packets together

Question 9

SQL injection

Answer 9

An attacker is trying to obtain info from or take over a database
They enter sql commands into input boxes instead of basic text

Question 10

Buffer overflow

Answer 10

When an attacker enters text that is too large to fit within a region of memory called a buffer allowing the attacker to retrieve it from a different region in the database

Question 11

Botnet

Answer 11

Malware that can takeover a pc allowing it to be remotely controlled