Maybe you meant ? m → n t → u s → t f → g h → i → “n u t g i” no. Given the odd output, I think the phrase might actually be in Arabic script but typed with Latin letters as a visual approximation, then shifted. Or it's a known code from a story.

In a forgotten server room beneath the ruins of Old Aleppo, a broken terminal flickered to life. On screen: mtsfh Vpn alwkyl. rf alhzr .

However, you asked for the of “mtsfh Vpn alwkyl. rf alhzr”.

Given the difficulty, here’s a instead: Title: The Last Cipher