Computer Science Homework Help

Hands-on Projects

PROjECT 1

FileVerifier++® is a tool that will compute hashes on

any single file, or all of your files at once. These hashes

are then checked to see if there have been any changes

to those files. FileVerifier++ can quickly check the

integrity of a large number of files.

FileVerifier++ is useful if you need to verify that

a given set of files has not been changed or altered in

any way. For example, it could be used to verify that

customer, employee, financial, or sales records were

not manipulated. If a file was changed without autho-

rization, it can be compared with an earlier version to

determine which changes were made. Using a file veri-

fier is one way IT security professionals can detect a

possible intrusion.

1. Download and install FileVerifier++ from http://

www.programmingunlimited.net.

2. Start, All Programs, FileVerifier++, and FileVerifier++.

3. In FileVerifier++, click the Options button.

4. Change the Default Algorithm to MD5.

5. Click OK.

6. Click on the Dirs button to select the directories

you want. (You can also select individual files.)

7. Browse to and select your downloads directory.

8. Click OK.

9. Take a screenshot.

10. Click the Verify All button. (Browse to your down-

loads directory if necessary.)

11. Click OK.

12. Take a screenshot.

13. Create a new text file named YourNameHash.txt,

and save it in your downloads folder. (Replace

YourName with your first and last names.)

14. Open the text file labeled YourNameHash.txt you

just created in your downloads folder.

15. Add your name to the contents of the text file.

16. Save your changes to that text file by clicking File

and Save.

17. Close the text file.

18. In the FileVerifier++ window, click Verify All again.

(Browse to your downloads folder if necessary.)

19. Scroll down until you can see the text file that you

changed. (It should be highlighted in red.)

20. Take a screenshot.

PROjECT 2

Good administrators check their logs regularly. They

need to know what went on when they were away. They

need to look for intruders, compromised machines, sto-

len or deleted files, and so on. The list of things to look

for can be extensive.

Microsoft Windows Event Viewer® is a simple

program that organizes these logs in a way that makes

Chapter 7 • Host Hardening 443

them easy to view. Learning how Event Viewer works

is a great training platform for beginners. It is also a

useful diagnostic tool.

In this example, you will enable logging of secu-

rity events, log in and out of your machine, and then

look up the event in Event Viewer.

1. Click Start, Control Panel, System and Security,

Administrative Tools, and Local Security Policy.

2. Click on Local Policies and Audit Policy.

3. Double-click on the policy labeled “Audit account

logon events.”

4. Select both Success and Failure.

5. Click OK.

6. Double-click on the policy labeled “Audit logon

events.”

7. Select both Success and Failure.

8. Click OK.

9. Take a screenshot.

10. In the control panel, click System and Security,

Administrative Tools, and Event Viewer.

11. Click Windows Logs and Security.

12. Take a screenshot.

13. Log off your computer (you don’t need to shut

down) by clicking Start, the drop-down menu next

to Shut down, and Log Off.

14. Log onto your computer by clicking your user-

name and entering your password.

15. In the control panel, click System and Security,

Administrative Tools, and Event Viewer.

16. Click Windows Logs and Security.

17. Take a screenshot.

18. Double-click on the Logon/Logoff event that was

just recorded.

19. Take a screenshot.

20. Click Close.

21. Click Applications and Services Logs and Microsoft

Office Sessions.

22. Click on one of the log events.

23. Take a screenshot.

Assignments Submission Direction for all Lab assignment and projects

Before you start working on the projects, keep a word document open. Take screen captures while performing the steps, and plug them in the document. Do not forget to number the steps. That will help me to check if the screen capture matches with the step, and how did you complete the project.

1. Once the last step is done, I want you to look back at all the steps and the purpose of the project. Write a brief lab reflection -i.e . what did you achieve in the lab, why did you do, and what did you learn. I do not want to know “how did you do’. The screen captures will show me anyway ‘how did you do’.