Malware on LG G3 redirecting all browsers
Ok, it seems I've found a solution. 


Disconnect internet;
Go to Settings -&gt; Applications. Clear every data (cache, history, modules, cookies) from Settings -&gt; Applications -&gt; Browser (Mozilla, stock browsers, Chrome)
Open each browser and access the settings (in the top right) and delete upgrades, cache, modules, autocompletes, etc
Close all applications
Restart your phone, reactivate data connection and you should be clean.


I'm baffled on how updated antiviruses and anti-malwares can't detect such things.