What is this traffic trying to do?

Hi,

I set up a coming soon page for my website until I go live so that I can see what type of traffic just arrives to my URL and what automated attacks I have to deal with.

I don't understand what these 2 bunches of requests are trying to do. They are very basic to protect against, I can just reject any traffic from any host that is not my own but they seem so stupid.

Are they trying to do denial of service attacks on these banks? How would that even work?

{"ip":"65.111.177.188","date":1346787914759,"method":"GET","url":"/","host":"www.itau.com.br","user-agent":"Mozilla/5.0 (Windows NT 5.1)

AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11"}

{"ip":"65.111.177.188","date":1346787914866,"method":"GET","url":"/","host":"www.bradesco.com.br","user-agent":"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11"}

{"ip":"65.111.177.188","date":1346787914964,"method":"GET","url":"/","host":"www.bb.com.br","user-agent":"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11"}

And for this request?

{"ip":"87.98.134.243","date":1346790766009,"method":"GET","url":"/?q=node/2","host":"rhs-drupal.imagistic.com","user-agent":"Mozilla/5.0

(Windows NT 6.0; WOW64; rv:13.0) Gecko/20100101 Firefox/13.0.1","accept":"image/gif, image/jpeg, image/pjpeg, application/x-ms-application, application/vnd.ms xpsdocument, application/xaml+xml, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-shockwave-flash, /"}

Thanks.