This is primarilly related to minecraft but this is pretty important to mention regardless.
This morning while attempting to update adobe flash it got stopped by this thing called Price Meter/Metar. After a quick search I found it IS in fact a bit of malware/adware. It appeared on my computer last month somehow, due to dowloading minecraft mods.
Despite being careful to avoid dealing with crap like this while s this managed to sneak into my computer. Now of course we all know downloading mods leads to this risk, thing is this price metar thing can sneak onto one's computer despite saying "skip add" on the adfly and other similar torrent sites, so those who do modded minecraft best do a check of their computers to be safe and delete this thing from your systems. Chances are it'll be there despite your protection.