Computer Security

Which of the following requires a user to transport it from one computer to another?

• Adware

• Worm

• Virus

• Rootkit

Which malware locks up a computer and gets release only when fee is paid?

• Cryptomalware

• Ransomware

• Trojan

• Adware

An example of is when a user download what is advertised as a calendar program, yet installing

the calendar also installs malware that scans the system for credit card numbers.

Briefly explain the above virus infection method

How does computer firewall helps to limit the spread of malware? Give two examples

Answer explanation

it can block unwanted/suspicious traffic, it can filter traffic coming into and out of computer

Malware can circulate through email attachment that we click on

• True

• False

Hide traces of activities either by deleting files or changing security setting to ignore malicious activity

An employee violated company

policy by downloading file from her personal email at work and

and her computer is suddenly locked up with cryptomalware. Why would this consider a dangerous situation?

• The organization may need to pay some fee to unlock her computer

• Her action of using work's computer to check personal email may encourage others to do the same

• The malware can encrypt all files on the network that the employee's computer is connected to

• The employee cannot do her work and may need hours before her computer can be restored

Ramon was fired due to a small incident at work. As a revenge, Ramon set a program to delete all emails in the server on the Halloween day. This is an example of

Discuss two defense against malware attack

Answer explanation

data backup/ install antimalware software / manage update/ setup personal firewall/ UAC