Software Troubleshooting: Given a scenario, troubleshoot common PC security issues with appropriate tools and best practices

Question 1

What software found in Vista helps to prevent malware and spyware infections?

Answer 1

Windows Defender

Question 2

After identifying a user’s computer has malware, what should your next step be?

Answer 2

Quarantine the computer

Question 3

You are attempting to uninstall a suspicious application, but the uninstall fails. How do you remove it in the easiest way possible?

Answer 3

System Restore to a state before the application was installed

Question 4

What is the most common way a computer gets infected in an office?

Answer 4

Opening an email attachment

Always scan attachments before opening them

Question 5

What tool would allow you to see if any Trojan horses are being loaded at startup?

Answer 5

MSCONFIG

Question 6

What is the recommended setting for UAC for the highest level of security?

Answer 6

Prompt for credentials on the secure desktop

Question 7

A newly installed application can not access a network server. What should you check first?

Answer 7

Firewall settings

Question 8

What type of attack attempts to redirect you to a fake website?

Answer 8

Hyperlink/web spoofing

Question 9

According to Comp TIA, what are the 6 steps you need to take to remove malware?

Answer 9

1. Quarantine the system
2. Disable system restore
3. Remediate the system
4. Schedule automatic scans and updates
5. Enable system restore, create a restore point
6. Educate the end user

Question 10

How would you prevent fake web site from gaining access to your personal information through Internet Explorer?

Answer 10

Turn on the SmartScreen filter

This filter will scan and inform you about web site status, whether it’s suspicious, or fraudulent

Question 11

A computer is infected with malware. You quarantine the system, disable system restore, remediate the computer, and update anti malware software. What should you do next?

Answer 11

Schedule automatic scans and updates for the anti malware software

Question 12

If you discover an infected file, what should you do to ensure it can’t cause any more harm to your computer?

Answer 12

Quarantine the file

This can be done by placing the file on another drive

Question 13

What are some symptoms of malware on a computer?

Answer 13

• popups
• browser redirection
• security alerts
• slower performance

Question 14

What are the two parts of step 4 in the malware removal process “Remediate the infected system”?

Answer 14

• Update or install antimalware software

- Scan for and remove malware

Question 15

Your computer is infected with PUM.bad.proxy malware. How can you fix this? (2 steps)

Answer 15

• On the connections tab of the Internet Properties box, click LAN settings, clear the “use a proxy server” checkbox
• Edit the ProxyServer and ProxyEnable registry keys under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings hive

Question 16

What are some warning signs to indicate a system has malware?

Answer 16

• Search result redirection
• Computer performance degrades
• Firewall alerts
• Random popups
• Anti virus won’t update
• Hard drive activity light is always on
• Increased spam email

Question 17

How would you protect an email from being read by an unauthorized user?

Answer 17

Encrypt the outgoing message