The defender says they are determined to make a positive impression to Jurgen Klopp against Tottenham on Saturday.
The Reds have failed to secure a shut out in their last eight games, despite having started the season strongly in defence with three consecutive clean sheets.
The defence was often a weak point of the side during Brendan Rodgers reign, despite him spending heavily on the likes of Mamadou Sakho and Dejan Lovren to try and improve that area.
And Moreno admits that their poor record does hurt, but insists the Reds do have great players who can turn things around by scoring goals.
"It is very frustrating when you are a defender and the team concedes," he told liverpoolfc.com.
"It is very hard, it hurts so much and it is not nice at all but when this happens we have great players who can turn the situation around by scoring goals. But yes, as a defender it hurts and I don’t like it."
This Saturday sees Liverpool take on Tottenham Hotspur at White Hart Lane, with new manager Jurgen Klopp keen to make a positive start to his reign.
Many are anticipating that the former Borussia Dortmund manager will oversee an overhaul of the squad at Anfield, with it being suggested that his current squad are not good enough to adopt his footballing philosophies.
Moreno, though, says that everyone is determined to do their best and make a good early impression on their new boss.
"A new manager has arrived, he wants to get to know all of us and everyone wants to do their best to create a good impression," he added.
"I think, though, that we should have done this from the beginning of the season, not from now; however, we have this chance now and all the players will give 100 per cent to do our best on Saturday.”