What spider is?, is it poisonous?
It looks like Steatoda nobilis, one of the False Widow Spiders. It is in the same family, Theridiidae, as some dangerous spiders, like Black Widows. The good news is that the spiders in genus Steatoda are not dangerous to people nor pets Almost all spiders have venom that they use to kill prey, it the effect on people is usually not much, except just a few species. The kind of spider you found actually can kill some dangerous spiders and insects, I really like them.