Pensacola Computer Help Technoblog

Recently I have had a lot of people come to me with Virus and Spyware infected computers, and many people have asked me why has this happened to them, and if it is even safe anymore to go on the internet. My answer is of course not easy – it is yes, and no. Yes the internet can be safe if you take reasonable precautions. Never open email attachments (even from people you know) unless you specifically know that someone was sending you something. Many viruses will infect a computer, harvest email addresses from address books on it, and unknowingly to the computer owner, send copies of itself to all that persons contacts. Always run a current Antivirus and Anti-spyware product (usually a combination of anti-spyware products is best, though never run more than one Antivirus).  Make sure that Windows is up to date with the latest security patches (these generally are released on Tuesday’s, although Microsoft will sometimes release them on other days if it is a serious threat that they address. Never, ever, click on links in an email as they are often what are called misleading links – although the link may say something like https://yourbank.com, the actual link may be something like https://yourbank.com.imahackerinchina.cn (you can tell the actual link by right clicking on it, choosing copy link, then pasting it in a text document). These malicious links can be anything from a spoofing site (designed to get your passwords), to a site with malicious code that will try to hijack your web browser, or download a virus or spyware.

You should also run some kind of firewall on your computer to keep hackers out – the best solution is to use a hardware router with a built in firewall along with some kind of software firewall. The router solution is often the best first line of defense as a hacker will generally only see the router and not any of your computers behind it. Also, beware of file sharing sites such as limewire, and torrents. Many of the files shared on these networks, in addition to being illegal copies, are full of viruses and spyware.

Most infections on computers get there because at some point, the computer user clicked a button allowing something to be installed. All the security in the world cannot do much if a user allows something to be installed in the first place. While most good Antivirus and Antispyware products will catch malicious programs when they are downloaded and installed, when a new Virus or Spyware program is first released on the internet, it often takes a while before the Antivirus/Antispyware software will have updated definitions to find it. If you happen to allow it to be installed, by the time the security software on your computer finds it, it may well be to late as many of these malicious programs can pretty much wipe out a Windows installation (and for you Mac users out there – Macs are no more secure than Windows in any way, as a matter of fact they are more vulnerable in many ways – it’s just that there aren’t many viruses that are written to attack them - yet).

In the end, your best defense is common sense and using good security practices. The other important thing, and this is probably the MOST IMPORTANT: always, always keep current backups of your important files. If by chance your computer does get a bad infection, often a Windows Reinstall is the best, cheapeast, and easiest way to safely remove it, however if you don’t have backups, this can cause additional problems as well as costs.