safari spyware?
i have a 15 inch mbp that i bought about 10 months ago. since then i have moved to china to study, my problem is that for about two months my safari has been acting strangely. every once it a while an add will show up. not as a pop-up but it will start at the bottom of the safari window and gradually move up until it is taking up the whole window besides the address bar, bookmark bar etc. it definitely seems to be an add. in fact its always the same add in chinese. i am positive that i have not visited any illicit sites to cause this. i am also behind a wireless router. my first instinct told me to try firefox and sure enough it does the same thing there. a simple reload of the page always solves the problem but it frequently re-occurs. this is my first mac so im not very savy as to how to fix it or if i can. i tried reinstalling both internet browsers but this has not worked.
any help?
is this malware, spyware?
could this just be because im in china?
macbook pro, 2.4 ghz 15inch