While use of computers and access to Internet has made life more comfortable and productive, computers are always vulnerable to various types of virus attacks. Computer viruses not only hamper the computer itself, but some malicious viruses also lead to leakage of personal information that can be used by hackers for identity theft and/or banking or personal information theft.
Therefore, it is important for computer users to be aware of the use of various programs and software that can help them to keep their computer safe from computer viruses. Here is a list of some of the common causes of computer viruses.
E-mail attachments continue to be one of the most popular ways to spread computer viruses. You should never open an attachment coming from an unknown e-mail address. In case you do receive attachment from an unknown address, it is imperative that you open it carefully after scanning it with an anti-virus software.
Most of the professional antivirus software programs available in the market today automatically scan attachments before it allows you to open the attachment. Some hackers also spoof e-mail addresses to make the e-mail look like it’s from a known contact. Therefore, all the attachments should be scanned before opening.
Various Downloadable Programs
Another common source of viruses on the Internet is various downloadable programs that are available for free from the Internet. While there are a number of helpful and useful software available for free online, they are often exploited by hackers to spread computer viruses.
Usually, these viruses are spread in the form of screensavers, games, game hacks, and other executable files. One of the best ways to keep your computer safe from these viruses is to scan each file that you download from the Internet before you install it on your computer.
There are some rogue websites on the Internet that download a virus to your computer when you simply visit that website in the browser. While most of the modern browsers have built-in security against such rogue websites, some people inadvertently download viruses from such websites by using an old web browser to visit these web pages.
The best way to keep your computer safe in these cases is to use an upgraded browser and keep it constantly updated.
Downloading Files from Unknown Sources
One of the other ways by which hackers spread computer viruses is through various instant messaging services. Most of the popular instant messaging services also allow sharing of files. Many hackers use the instant messaging services to trick people into downloading and installing these viruses onto their computers. The best way to keep your computer safe is to not download a file shared by any unknown user.
A couple common files associated with many of these issues are the dwm.exe file and the svchost.exe file. They are both common Microsoft Windows files and have been known to be a target for malicious activity. If you notice any errors with the dwm or svchost process, you should scan your system immediately. If the Desktop Windows Manager or the svchost file cannot work properly, your system will malfunction.
These are some of the ways in which computer viruses are spread by hackers. The best way to prevent these viruses from harming your computer is to install an anti-virus program and update it on a regular basis. Also, you should always use an updated browser to surf the Internet.