Could be dust, or dead (or bright) or whatever they are called pixels on your sensor but i'm not too familiar with the correct term since i use film. But try cleaning your sensor, make sure it's not just that lens.
Yeah that's hot pixels. The bigger, dark blob kind half way up near the left hand side is just dust on the sensor. What camera are you using and how long was the exposure? If it was a pretty long exposure, don't worry about the hot pixels, they happen. If it's a DSLR or you've got an option for 'long exposure noise reduction' turn it on and they won't be a problem anymore anymore.