Malware Flashcards

1
Q

What is malware short for?

A

Malicious software

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2
Q

Give 9 examples of malware

A
Computer Virus
Trojan
Spyware
Adware
Pharming
Click fraud
Ransomware
Rootkits
Scareware
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3
Q

What is a virus?

A

A piece of code that is designed to replicate itself throughout the computer or network

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4
Q

What is a virus usually designed to do?

A

To delete or corrupt data

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5
Q

What is a worm?

A

It behaves just like a virus, but does not harm files. Instead, it tries to copy itself so many times that the whole system runs out of resources and crashes

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6
Q

What is a trojan?

A

A trojan appears to be a harmless application. You use it, but meanwhile it is running in the background it maybe letting someone else access to your computer

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7
Q

What is adware?

A

This malware can force your browser to display unwanted pop-up advertisements. It can also cause pages that you didn’t request to open up taking you to unwanted web sites

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8
Q

What is click fraud?

A

Uses your computer resources to open certain web sites and send a mouse click to the adverts. Every click makes them money

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9
Q

What is pharming?

A

Pharming malware will infect your browser, redirecting you to an identical looking, but fake website

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10
Q

How does pharming work?

A

It tells your browser to look for a different IP address to the genuine site to that of the fake website

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11
Q

What is spyware?

A

Spyware stays hidden out of view and is designed to spy on your computer, looking for personal information, passwords and so on

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12
Q

How does spyware work?

A

Using a key logger to record every key pressed on the keyboard. It might also take screen shots. This information is then sent secretly over the internet to the criminals

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13
Q

What is ransomware?

A

Ransomware encrypts critical files and data, making them unusable. Eventually it presents the user with a ransom, demanding money be sent to the attackers to unlock the system

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14
Q

What is scareware?

A

Scareware will cause a pop-up to appear on your screen which will say something like ‘Your computer has a virus. To clear the problem please purchase this software’, and a link is provided in the pop-up (often containing malware)

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15
Q

What is rootkits?

A

Rootkits give other people permissions and access to your computer, allowing them to take it over remotely and do whatever they like

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