Is there a name for liquor that might have been produced legally, or using professional technologies, but then has been smuggled, either bypassing customs, or into prohibition area and/or is being sold illegally?
"Moonshine" is the common name for suspicious quality liquor made using makeshift, illegal still, but that usually implies local, unprofessional production.
"Contraband" is the general name for smuggled, illegal goods, not just liquor.
Best Answer
describes anything that is reproduced and distributed informally but illegally (similar to 'black market'). Currently it is almost always applied to music or movie recordings, either recorded live by an unofficial source or copying the medium and redistributing against regulations. In the past, it was primarily associated with liquor production and distribution during the American Prohibition era, but the word originated earlier referring simplify to hiding a flask in the leg of one's boot.