McAfee and Avast label Alexa as spy-ware, ad-ware. What should I do?

I am not able to download Alexa, even after pausing Avast, or putting all relevant folders in the "exclusions list" or "areas which will not be scanned" but to no avail. I have a small site with a ranking of 1 million on alexa, and wanted to improve it. In India, alexa ain't that famous. Is there any software through which the rank can be boosted to say...400,000. Thanks