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Dr. Herong Yang, Version 5.00

What Is Spyware?

This section provides a quick introduction of spyware.

A couple of weeks ago, I had to spend several hours to help a friend of mine to remove spyware on his computer. It was a very interesting experience, and I want to share with you.

First, I searched the Web for a good definition of spyware. Here is what I found:

Spyware is a broad category of malicious software designed to intercept or take partial control of a computer's operation without the informed consent of that machine's owner or legitimate user. While the term taken literally suggests software that surreptitiously monitors the user, it has come to refer more broadly to software that subverts the computer's operation for the benefit of a third party.

Spyware differs from viruses and worms in that it does not usually self-replicate. Like many recent viruses, however, spyware is designed to exploit infected computers for commercial gain. Typical tactics furthering this goal include delivery of unsolicited pop-up advertisements; theft of personal information (including financial information such as credit card numbers); monitoring of Web-browsing activity for marketing purposes; or routing of HTTP requests to advertising sites.

Sections in This Chapter

What Is Spyware?

"HijackThis" - Spyware and Browser Hijacker Detector

"HijackThis" Report Entry Types

Spyware: WebBar - htwtb.bin and bar.dll

Spyware: SurfBuddy - sbuddy.dll

Spyware: WebSpecials - webspec.dll

Spyware: DSSAgent - DSSAgent.exe

Transponder: Best Offer - farmmext.exe

Spyware: dinst.exe - dsr.dll

Dr. Herong Yang, updated in 2008
What Is Spyware?