So, as of a few days ago, I began to get URL Mal warnings upon vising sites that I trusted, and now I am getting a warning upon starting programs such as Minecraft. Could anyone point me in the right direction? 
you dont give much info…
screenshot of the warning would help…
if the url on the warning is afe.specificclick.net search the forum and you should find some info
http://i.imgur.com/CCpRVFg.png
There is the screenshot of the warning.
urlvoid
http://urlvoid.com/scan/pixel.quantserve.com/
hpHosts list it as ATS. http://hosts-file.net/?s=classifications
ATS - Ad/tracking servers This classification is assigned for domains being used for advert or tracking purposes
follow the guide http://forum.avast.com/index.php?topic=53253.0
attach AdwCleaner / Malwarebytes / OTL / aswMBR logs