How To Avoid Computer Viruses.

virus-signAside from the obvious Buy A Mac quotation that one might expect, I felt it necessary to outline some of the things people with a PC running a variant of Microsoft Windows can do to reduce their likelihood of contracting a computer virus or trojan.

In my recent experience, most ‘viruses’ actually turn out not to be viruses at all but are in fact either trojan horses or some kind of other malware. Usually adware. But since most people know the term virus, and apply it to all kinds of malware, that’s the term I have used here.

So, what are the steps to reduce your exposure?

  1. If you’re using a version of Windows earlier than XP on your desktop PC and you use the internet, upgrade it. This may mean having to upgrade your hardware but it will be worth it. Anything earlier than XP (ie, Windows 95, Windows 98, Windows ME) is no longer supported by Microsoft and no more patches will be released to fix known exploits. And if you’re on Windows ME you really will enjoy an upgrade, trust me.
  2. Keep your PC up to date with Windows Updates. This can’t be stressed enough. If you do nothing else, you must keep your system up to date.
  3. Avoid downloading ‘pirated’ music, programs and films.
  4. Avoid the more seedy areas of the internet. This includes those areas that you can find things from #3 above, but also the even seedier places where you will find nude women / men. Like in real life, unsafe places will get you into trouble, often in more ways than one.
  5. If you want to download freeware/shareware/try-before-you-buy-ware then check it out on Google first. And don’t take Google’s first words for it – some of the newer trojan/spyware laden programs create fake web pages saying how great the software is – make sure you look for reviews of the software at various different places – and if possible stick to known good review sites such as cNet and zdNet.
  6. Don’t open attachments in e-mails unless you asked for them to be sent. Even if the person is in your Address Book, or you know them personally. Unless they told you in person or on the phone to expect this, then it could easily be a virus pretending to be your friend. If you’re sending an attachment to friends, call them first, or include something in your e-mail message that a virus could not know. Maybe a recent event that you haven’t entered into your computer is a good idea, such as ‘It was good to see you last Saturday at Uncle Joes fiftieth birthday party’.
  7. Don’t click on links that friends send you on Instant Messenging programs – unless the person sending the link can say something to convince you that they really did send it. See #6 for more on this.
  8. Don’t click on links in e-mails. In particular if the e-mail says it’s come from your bank, or Paypal or eBay. These are almost always scam e-mails trying to get you to visit a dodgy site. If you get an e-mail and think it might be from your bank, or eBay, then open your browser yourself and type the address into the address bar yourself. Do not click the link.
  9. Finally, install a reputable anti-virus solution and keep it updated. Good examples of this are Avira, AVG and Avast. However, if you don’t follow the other 8 principles, you are still at risk. It’s a cat and mouse game for virus/antivirus and if you’re the first person to see a virus in the wild, your anti-virus program cannot help you.

It should also be said, if you want a simple life and don’t want to waste half your horsepower and internet bandwidth with antivirus and antispyware solutions then I really do recommend looking at Apple Macintosh as they’re very easy to use, very reliable and do not suffer the same architectural flaws that Windows machines have. I expect to be burned in hot oil for making such a statement. And people will say ‘Of course Mac doesn’t have as many viruses because it doesn’t have the market share’ but whilst this is possibly part of the reason, Mac also has been built with a number of protections by virtue of its UNIX background.

Author: Steve Brown

Steve is a paramedic in Victoria, Australia who is also an ex-IT Consultant and currently uses all manner of MacOS software in his everyday life. So he usually tends to write about his experiences with that. But sometimes he'll write about medical, political or other stuff that might (or might not!) be of interest

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