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Spring 2008 Definitions  Virus  A virus is a piece of computer code that attaches itself to a program or file so it can spread.

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Presentation on theme: "Spring 2008 Definitions  Virus  A virus is a piece of computer code that attaches itself to a program or file so it can spread."— Presentation transcript:

1 Spring 2008

2 Definitions  Virus  A virus is a piece of computer code that attaches itself to a program or file so it can spread from computer to computer, infecting as it travels. Viruses can damage your software, your hardware, and your files.  Worm  A worm generally spreads without user action and distributes complete copies (possibly modified) of itself across networks. A worm can consume memory or network bandwidth, thus causing a computer to stop responding.

3 Definitions (cont…)  Spyware  Spyware is any technology that aids in gathering information about a person or organization without their knowledge. It Can overload your system and shutdown other services.  Tojan Horse  Computer program that appears to be useful software, but instead compromises your security and causes a lot of damage.

4 How Do We Get Them  Opening Email  Visiting Web Sites  Installing Software  Just having a Computer on a Network

5 How Do You Protect Yourself  Educate Yourself  AntiVirus Programs  Patching and Updating  AntiSpyware Programs

6 Education  Don’t open emails that looks “fishy”  Don’t visit “bad” websites  Only install software from “Trusted” vendors  Scan files before opening them  Visit websites like Microsoft, Symantec, and Apple to get informed of new security alerts.

7 AntiVirus Programs  We use Symantec AntiVirus  It should be installed on all systems on campus.  It is also available for personal use at home.  You can download the latest version at 

8 Norton Antivirus  Start – Programs – Symantec Security Client – Symantec AntiVirus

9 Norton Antivirus Update  After Clicking Live Update  This goes out to Symantec and pulls the most recent updates from their servers.  For campus computers, this is done automatically for you, and you do not normally need to do this.

10 Norton Antivirus Auto Update from Home  In Symantec Antivirus  File menu – Schedule Updates  Check the box to Enable.  Click the Schedule Button to choose a Time.

11 System Auto-protect  The most important component of Symantec  It keeps your system protected when you perform tasks.  Configure menu – File System auto-protect

12 Scanning Your System  Scanning looks for problems that may already exist on you system  Scan menu – Computer – choose the Drives to Scan

13 What Happens when a Virus is Detected  A popup message will appear on screen  It tells the file, location, and action taken.  Action should be cleaned, quarantined, or deleted. That means it is working.  For any other action like “none taken” call the helpdesk.

14 Patching and Updating  One of the best things that you can do to protect your system is to Patch it.  Most people believe that their system got infected because of a failed AntiVirus product, but they are wrong.  Most infected systems become infected because of poorly patched systems.  Patching is a simple, easy, and free way to protect your system.

15 How you patch a system  To do it manually, use the windows update Icon on your start menu.  To do it automatically got to Start – Settings – Control panel and choose Automatic Updates.

16 How We as a Campus Patch  Labs and Classrooms are patched automatically by a system called Software Update Services the day after a patch is released and tested.  Nothing else is needed.  Faculty and Staff Systems that belong to the UMSL-USERS Domain are patched by SMS as soon as they have written and tested the package.  It is still a good idea to patch yourself.

17 AntiSpyware Programs  Spyware is typically placed on your system by visiting websites and installing software.  Typical signs that you have spyware  You have a lot of popup windows when visiting the web or just logging on to your system.  Your homepage has changed to a different site.  You notice a major drop in system performance.  Your antispyware or antivirus utility stops working.  You go to search for things and your search page has changed.  New Items appear in your favorites.  In many cases there are no signs and it is running silently recording your actions.

18 Protect Yourself from Spyware  Use a popup blocker like Google Toolbar, or the one that comes with FireFox and Internet Explorer.  Install AntiSpyware utilities.  Some that we recommend are Ad-aware, Spybot - Search and Destroy, CWShreder, and Symantec Antivirus 10.  These can be found for free at   http://www.safer- http://www.safer- http://www.safer-  These programs are not provided to you by the University and are free for anyone to download for personal use.

19 Spybot – Search and Destroy

20 Spybot - Updating  Always Update the software before scanning or immunizing the system.

21 Spybot - Immunize  Immunizing the system protects it from getting certain types of Spyware.

22 Spybot - Scanning  Click the Search and Destroy Button to scan the system.  This will clean off existing Spyware.

23 LavaSoft’s Ad-Aware

24 Ad-Aware - Update  Use the Check for Updates Link on the Main screen or the Web update Button.

25 Ad-Aware - Scanning  Click the Scan Now Button  Choose to do a Full System Scan

26 Ad-Aware – Scan Results  You will get Critical Objects (Clean)  You will get Negligible Objects (Can Leave Alone)   Mostly MRU (Most Recently Used)

27 Ad-Aware – Clean Objects  When you clean objects they go to the Quarantine.  You can leave them or delete them.

28 CWShredder  Only Cleans spyware from Cool Web Search


30 Attention !!!  Duplex Printing is now available on our labs.

31 Additional Information –The Microcomputer Program at the University of Missouri-St. Louis offers day and evening computer courses as part of the Chancellor's Certificate series. –Microsoft E-Learning Library has tutorials on many MS Office products available to all UMSL students and staff – – The Online Student Technology Guide has answers to many computing questions.

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