Maruf
Yes. 'Ma'ruf' (معروف) is a widely used term in the Qur'an, hadith, and classical Islamic literature meaning 'that which is known to be good or customary.'
Maruf has historical attestations as a personal name in Muslim societies, though it has been less common than other names; it is attested in Arabic-speaking and non-Arab Muslim communities.
Yes. Arabic-derived virtue names such as Maruf are used in Pashto- and Malay-speaking Muslim communities and are linguistically appropriate.
Common transliterations include 'Maruf', 'Ma'ruf', and 'Maroof'; the Arabic letter ʿayn is often not represented in simple Latin spellings.
Traditionally Maruf is used as a masculine name; feminine forms would be formed differently in Arabic, and Maruf itself is masculine in conventional usage.