Malicious software ("malware") could be installed on your computer.
Make sure that your anti-malware software is running, then download the
latest signatures and run a full scan.
If you don't have comprehensive anti-malware software, that's like
driving a car without seats belts or air bags. Either way, you're
eventually going to get hammered. Install comprehensive anti-malware
software and learn how to use its features. A 'comprehensive' solution
scans for all types of malicious software in the background, on demand
and on schedule.
For now try scanning your system with /several/ of the better online
scanners, such as:
Kaspersky Antivirus (http://www.kaspersky.com/virusscanner
Panda ActiveScan (http://www.pandasoftware.com/activescan
Download HijackThis from www.trendsecure.com
. Run it, save a log, and
post the log at one of the many sites that support HJT, such as
spywarewarrior.com, bleepingcomputer.com, and temerc.com -- but not
here. Within a day, sometimes within an hour, you'll have one-on-one
step-by-step advice from a security expert on cleaning up any
infestations—or you'll have a clean bill of health from the volunteer
Even the best detection and removal software can't fix every malware
infection. If none of the above remove the infection, you may want to
show the computer to a professional.
Errare Humanum Est
> When I do a search using a search engine like google or yahoo, I get a list
> of appropriate websites, but the links to the websites are all wrong - they
> seem to be mainly advertising websites. This first happened using just about
> any search engine in Internet Explorer 6. I did a virus scan, reset all my
> settings, and finally upgraded to IE 7. I'm still having the same problem.
> Any suggestions? Thanks.