they take his goal tally to 23 in all competitions since his arrival last summer.
He says he succeeds at whichever club he plays, like Harrison Ford's archaeologist adventurer 'Indy' in the famous Steven Spielberg films.
"Every trophy for me is incredible, everywhere I came I won so if I can win something here I will be super happy," he said.
"People that know me know that I play in many clubs and I try to do my best. Wherever I went I won - so I am like Indiana Jones."
Thursday's hat-trick was the 17th of his career and took his goal tally against St Etienne alone to 17, putting a smile on the striker's face.
"It feels good," Ibrahimovic said. "I got a lot of help from my team-mates. We played an open game today and it was important to get a good result so we can take it into the second leg.
"We won 3-0 and I got to score the three goals so I am happy for that. We have still many games to play so hopefully I can continue like I am doing.
"I've scored a couple of goals against them, I don't focus on specific opponents, I just try to do my job, try to do what I am good at."
Boss Jose Mourinho was not impressed with United's first-half display but in the end his team built up what should be a winning lead heading over to France in the second leg.
"Exactly," said Ibrahimovic. "A good result because I know how difficult it is to play over there.
"They have a fantastic crowd, fantastic support, and the stadium is very nice, so the guys will see it when we go there. It was important today to get a good result.
"It is a good team. They always make it difficult for every team they play against and when I was at PSG the same thing. They did good.
"I think a couple of players are new, a couple of players left, but it is a good team."