Gers snapped up the ex-Motherwell striker on a six-month loan deal from Brighton and Hove Albion over the weekend.
And Ibrox chief Murty has tipped the 28-year-old to make a major impact at his boyhood club.
“I don’t see any reason why he can’t attract national interest,” added the manager.
“I’m sure that’s one of the reason he’s come back, to be in their mindset and hopefully help us push on.”
Having represented Scotland at under-19 and under-21 levels in the past, Murphy has yet to win a full cap despite being called into the squad twice in 2016.
“He is one we identified really early for that left-flank slot,” the Ibrox boss added.
“He brings a wealth of experience and he’s had glowing endorsements from not only coaching staff and managers, but also players that I’ve played with, that have played with him, in terms of the character that he is, and he was another one who was desperate to come.
“He’s a Rangers fan, he brings recognisable attributes and he can go and contribute straight away, and that was really important.
“I think bringing him in brings a different dimension to the team and I’m really excited about that.
“He’s still exciting and he’s still got pace, he’s still got the ability to beat a man and deliver an end product in the final third, but he’s not a boy anymore.
“He’s now a man ready to shoulder a man’s burden in the team hopefully, and we’re really excited to get this more polished article and give him a stage that’s ready for him to shine on.”
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