Does autosurfs act as spyware?

I was using one of the autosurf programs which i was a member for some time and when i was using my antivirus software suddenly popped up a message that site, i was visiting was trying to download a dangerous spyware and had to close it to delete it. is anyone else experienced same or similar issues with autosurfs?

Possibility is that the host of that domain may has some bugs and other viruses. I have read such errors and spywares on many webmaster forums.