"Te la rubo."
Wow! That was fast! The question gave 'Te la _____'
We were given a choice between rubo and rubano and were told to choose the best one. Since we were not given the English translation, they seemed equally correct to me, depending if you wanted to say 'THEY steal it/her from you' or 'I steal it/her from you', as you have said. I reported it as confusing, so I hope I was right! :)