"I'm pleased because they're a good team, it was a good game and a good European night," Ferguson said on ITV1.
"A bit tactical at times but a good result for us."
Of Rooney's goal, Ferguson said: "Marvellous. Similar to the one he scored against AC Milan.
"Great passing and a great finish."
The United boss is not concerned about his side's recent trend of winning only 1-0.
He said: "Sometimes you go through these spells but it won't last forever.
"They're all working hard and showing far more experience this season."