Dude, the same thing happened to my brother in law not even a month ago...

Change your keys asap, save the new password and delete your cookies... you might have visited a phishing website.

No pun intended, but we will help you with the helpie crew... we did the same thing for Darren... I'll write a post about this, and send you a little "dont worry brother" transfer.

Quick question. How are you login to steem?

Make sure you use your posting key only... that one if ever phished, cant move funds. (that's how its recommended)