I think I've figured out my problem: http://www.reddit.com/r/China/comments/33wpk3/anyone_else_almost_all_websites_in_both_chrome
I've just black-listed these websites in my ad-blocker and it's working for now, without having to disable JavaScript (blocking the .js files doesn't seem to work, so I just blocked the whole domain). Currently scanning my computer to check for additional threats.
Thanks for the replies, anyway!