Como quitar esto?

¿alguien sabe como desacerme de esto que aparece cada vez que abro el IE?


Attention! Your system is under control of remote computer with IP
address 227.4.167.118. The remote computer has access to the following
folders on your PC:
- \WINDOWS\System32
- \Program Files\Internet Explorer
- \My Documents
- Drive C:\ files
Click here to download official anti-spyware software

Your private info is collected by

Your IP address:
80.35.193.23



Your Country:
ES, Spain



They know you're using:
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR
1.1.4322)



Operation System:
OS Windows



Risk status for futher investigation:
VERY HIGH RISK



Time of investigation:
Thu Mar 23 8:12:53 PST 2006