If your computer have access to the Internet, it is very likely that you have been infected by certain viruses or adwares despite having an antivirus software installed.
Of lately, adware, spyware and malware are getting more aggressive and innovative in their attacks.
Sources of Virus infection
Today, the most common sources of virus infection include e-mail, virus propagation through shared disks in computer; networks, and websites with potentially dangerous content. Other methods of transmission (on floppy or CD ROM disks) no longer; occur as frequently as they once did, but they cannot be ignored.
Prevention of Virus infection
The most important aspect of prevention is to protect your e-mail client! Just as important is the use of the Resident Shield (on-access scanner) functionality that scans your files in the background as you open, run and save them.
Symptoms of Virus infection
Virus infection may go undetected and in effect, helps the virus writers to spread their 'great' works of destruction. Some of you may have noticed the following more obvious symptoms of virus infection:
- Internet accesses slowed down tremendously. It takes a while to load up a webpage
- When you open your browser, it goes to URL 'about:blank' that shows links or popup windows of V*iagra, enlargement pills or a p*orn site.
- Certain Windows program fails to run, eg. Antivirus programs, Virus definition updates, Windows explorer, regedit.exe, etc.
Checking for Virus infection
You may want to check you computer for virus infection that could have passed through your line of defense. Listed below are free virus checking software:
Cleaning Your Computer
Most online virus checkers merely detects viruses found on your computer and do not clean them. If you have installed an antivirus and yet your computer still get infected with virus, what can you do ?
Free Virus Removal Tools
If you are not sure, here's a few free removal programs for a quick fix:
|Avast!||A list of removal tools for various common virus/worms.|
|bitdefender||A list of removal tools for various common virus/worms.|
|F-Secure||A list of removal tools for various common virus/worms.|
|AVG Technologies CZ||Cleans the following virus: BackDoor.Agent.A-Z,AA-BG, I-Worm/Bagle.A-Z,AA-AJ, I-Worm/Bugbear.D, I-Worm/Netsky.A-Z, AA-AD, I-Worm/Sasser.A-F, I-Worm/Zafi.A-B, PSW.Bispy.A-E. Can run in DOS mode|
|Kaspersky||A list of removal tools for various common virus/worms.|
|McAfee||AVERT Stringer. Removes several common virus/worms.|
|Panda Software||A list of removal tools for various common virus/worms.|
|Symantec||A list of removal tools of various virus/worms.|
Free Antivirus Programs
For home user, check out this free edition of AVG antivirus program to clean the infection:http://free.avg.com/download-avg-anti-virus-free-edition
This fully-functional antivirus software is FREE for home use. Instructions on the use installation of this free edition is available at:Cleaning Browser Hijacker and Spywares
Virus database updates are available for the lifetime of the product. AVG Anti-Virus FREE is easy-to-use and will not slow your system down (low system resource requirements).
Paid Antivirus solution
For more customizable and complete functionality, consider a paid version. Check out AVG Technologies CZ's comprehensive range of anti-virus solutions at:http://www.geromail.com/avgantivirus.php