Mold is always a tricky one. The fix for mold depends on not only the type of mold but the source and the location. Surface mold can be cleaned with a variety of things including; bleach water, vinegar, hydrogen & peroxide, or baking soda. This, however, will only eliminate the surface mold you can see.
In order to eliminate mold, you must reduce the relative humidity in the space. This can easily be done with a dehumidifier in the space.