No, but they can help solve the problem of gullible people downloading and running installers for known malware.

Honestly, listening to some Mac user responses to this problem, it's like entering a timewarp back to when all the measures implemented on Windows/IE to deal with this stuff hadn't even been thought up.

Possibly a quick fix, until it's addressed, is for folk on OSX to do their web surfing in a Windows VM, using a security-focussed browser designed for non-technical people, such as IE9. ;-)