How computer gets infected with Spyware and Trojans - We have heard this question a thousand times from many customer, why spyware detection failed even though I have installed the best anti virus protection like norton anti virus software, McAfee or Avg. When you ask this question to your virus protection company, they blame you for installing the spyware software on your computer after over riding the security warning from your virus scan software.

When you install any free software (which you think is adware and spyware free), which needs connection to Internet, your virus protection program will certainly pop-ups a warning asking your permission whether to grant access or block it. You will probably grant access to this software to access Internet as you want to use the software you just installed. Now your Virus scan software will not detect any adware and spyware coming through the data sent and received by the software you just installed and that is how your virus scan software fails in spyware detection.

Now whom to blame for the adware and spyware infection. I would say 50% on your virus protection company and 50% on you. I will explain this. Your Anti Virus company is help less or doing nothing to get rid of spyware. The worst case about spyware adware removal is that your security company will charge you to help you remove the spyware software, even though you have paid for Anti virus subscription and support. I would say that the Anti-Virus companies are using this situation for increasing their profit instead of providing free spyware adware removal support or helping the customers to prevent any future attack of adware and spyware.                                                                             

Two of the most common ways malware such as adware and spyware gets installed on a computer is through software bundling and social Engineering. With software bundling, spyware or adware is packaged with useful software like free p2p applications (Azureus, Kazaa, etc) and video codecs ( XP Codec Pack, VideoActiveX Objects ). Often, the user is not aware of the negative aspects of the bundled software. Once these programs are added to the Program Permission lists of your virus protection software, then your anti-virus software will not block the traffic through these applications.

With social engineering, the user is tricked into installing the software. Typically, the user receives a misleading e-mail instructing them to open an attachment or visit a Web site which contains spyware or adware.