When it comes to viruses, an ounce of prevention is worth a ton of cure:
- Do not run P2P apps of any kind (Kazaa, Skype, e-donkey)
- Stay off the pr0n, warez and mp3 sites
- Do not run instant messengers like MSN or ICQ
- If you must do any of these things do them on a "safe" machine which you are prepared to immediately repartition (and clearing the mbr) and full format after the nasty is done...
Good advice and I generally stick to it.
It occurs to me that if you
must do some of these you might be better using a LiveCD version of Linux for these usages. Do so on a system that is otherwise Windows (or Mac) and the ability to cause infections should be limited (but not quite eliminated).
Of course limit any software downloads to
known safe programs and sites or these and all other precautions will fail. No security system can guard you from doing "stupid things".
Before clicking on a new file look at the actual file type not what you were told from the site of origin that it was. There have been several "viruses" that were disguised as another type by haveing a dual extension
Example 1:
Image.jpg.exe for example
Windows will (unless you tell it otherwise) helpfully not display the extension that identifies file types, the Image.jpg.exe in the prior example is seen as Image.jpg instead and if you don't look at the
actual file type you might be decieved into clicking on it.