Virus Awareness

Category: Education

Presentation Description

The presentation was created in hope of allowing people to easily access information regarding viruses and ways to protect themselves. Created by Fraser King.


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Presentation Transcript

Computer Safety:

Computer Safety An intro to…

// overview:

// overview What is a virus? What is an antivirus? How to keep yourself safe How to keep others safe The deadly botnet Recap So let’s start off with an introduction of who made this presentation possible

// this presentation is brought to you by:

// this presentation is brought to you by The Huron County Library system Industry Canada The Community Access Program

// what exactly is a virus?:

// what exactly is a virus? Well, there is a couple ways we can look at it before we have a complete understanding. One, is it’s definition. Virus : is a computer program that can copy itself and infect a computer without the permission or knowledge of the owner. We could also compare a computer virus to a human virus.

// what exactly is a virus? :

// what exactly is a virus? Here are some similarities/differences from a computer virus to a biological virus. Similarities: Differences: - Computer viruses are man made - Needs a host to reside in - Can cause damage to the host - Capable of self replication

// what exactly is a virus?:

// what exactly is a virus? So I guess we could simply look at a computer virus as something that attaches itself to your system without you wanting it too.

// types of viruses:

// types of viruses Now, there are many different types of harmful files that you want to avoid at all cost; the mains ones that you’ll come in contact with most often being: Worms, trojan viruses, directory & file infectors, and in some cases keyloggers. All of these have the potential to do a lot of harm to your computer and even steal personal information.

// viruses at a glance:

// viruses at a glance I’ll do a quick look at each one of the viruses we touched on earlier so you have a better understanding of what they can do.

// worm:

// worm A worm is a self-replicating computer program. It uses a network to send copies of itself to other nodes (computers on the network) and it may do so without any user intervention. A big worm that has gotten some attention lately is the confiker worm which exploited a network service on Microsoft Operating Systems and infected millions of consoles.

// trojan (or backdoor) virus:

// trojan (or backdoor) virus A Trojan horse, or trojan for short, is a term used to describe malware that appears, to the user, to perform a desirable function but, in fact, facilitates unauthorized access to the user's computer system. If infected, it can: Use the machine as part of a Botnet (e.g. to perform Distributed Denial-of-service (DDoS) attacks)‏ Steal data (e.g. passwords, security codes, credit card information)‏ Install software (including other malware)‏

// directory & file infectors:

// directory & file infectors A role of a directory/file infector is to directly strike and modify an application, usually seeking out EXE. or COM extensions. When the application is started, the infection is executed and does whatever it has been commanded to do. It is typically installed into system memory.

// so now what?!:

// so now what?! Don’t worry, I know it sounds like a bad situation but here is where the good news comes in. The single most important piece of software on your computer is your Antivirus. I’m going to go over what they do and which ones you should be using.

// types of antiviruses:

// types of antiviruses If you were to search the net for an antivirus program you would get thousands of results. So I’m going to try and refine those results to something that works well and is cheap. I don’t know if you were paying attention at the beginning of my presentation, but I had a bunch of pictures of very well known and effective antiviruses. Mainly: NOD32, Norton (or Symantec) , McAfee, AVG and Kaspersky . My personal choice of preference is NOD32, but I’m going to go over some of the more user-friendly and less costly models.

// Anti-Viruses:

// Anti-Viruses To help me compare the programs I referred to I will use statistical pictures from 2007 – 2009.

// Anti-Viruses:

// Anti-Viruses So, as you can see from the graphs, the top two are usually Eset and Symantec. Both programs offer free trials on their websites and are fairly similar in price. However, I would suggest neither of them for someone just starting off with computers. I would suggest AVG. AVG is always in the top 6 or 7 and is completely free! They do offer a stronger and more efficient version for the same price as the other big brands, but for the purpose of learning and experimenting it won’t be necessary.

// AVG:

// AVG Free User Friendly Effective Supports multiple operating systems Low resources needed to run Over 80 million users!

// how to keep yourself safe:

// how to keep yourself safe [ Look for the green bar in the url ] - Always get the newest updates for not only your antivirus but the operating system your using as well. - Only visit websites that you can trust. If you’re not sure if you can trust it, check for some of the following symbols or markings that prove authenticity. Some basic rules to try and follow are: or [ the lock at the bottom of your browser] Both of these mean it is a secure site.

// how to keep yourself safe:

// how to keep yourself safe Also, refrain from downloading randomly. If you do need to download something your not 100% sure on, make sure you scan it with your antivirus or websites like to make sure it’s clean. You don’t want to end up with something like this because you were feeling lazy.

// how to keep others safe:

// how to keep others safe You will want to use the other rules for this part as well. If that means you have to disconnect your internet while you run a search and destroy scan then so be it. The same idea applies for going to work when your sick. You don’t want your fellow workers to get the flu as well. But this time, if you do think you have a virus, don’t give it any time to spread.

// the botnet:

// the botnet Botnet is a jargon term for a collection of software robots, or bots, that run autonomously and automatically. These are especially dangerous because they infect your computer without you knowing it and then use your terminal as a base to launch more attacks. What makes it even worse is the ability for the creator or ‘bot master’ to issue specific commands from his remote location. I thought I would touch base on the super villian of malicious software. The botnet.

// the botnet:

// the botnet The best way to stay safe is to follow the steps I explained earlier. Keep your system up-to-date Update your antivirus every day or so Just keep yourself aware of what is out there If you remember when I mention the Conficker worm, that was also a botnet. A very recent one in fact that had aprox. 10, 000, 000 infected PC’s. If you do all that you’ll be just fine against potential attacks.

// recap :

// recap There are many different kinds of malicious software. We will never be safe from them all, But through heavy precautions and past knowledge, We protect ourselves with a wall. [ a firewall that is ;) ] Remember to follow the steps I have mentioned countless times. Be aware Update Be cautious

// credits:

// credits Created by: Fraser King Student CAP Any questions?