Steatoda grossa - medium sized venomous spider but not dangerous for humans. The spider is not aggressive and bites are very rare. For a man, his bite is painful, but not fatal. However, it can be dangerous for small curious Pets.
Spiders of this species live in many parts of the world, including Europe, North America and Australia.

P.S. Sorry for the poor quality of the photo. The spider was clearly not in the mood and refused to pose for the camera.