infiltrator vs interloper

infiltrator and interloper both are nouns.

Word	Noun	Adjective	Verb	Adverb
infiltrator	Yes	No	No	No
interloper	Yes	No	No	No

As nouns, interloper is a hypernym of infiltrator; that is, interloper is a word with a broader meaning than infiltrator:

infiltrator: an intruder (as troops) with hostile intent
interloper: someone who intrudes on the privacy or property of another without permission

Other hypernyms of infiltrator include intruder, trespasser.

infiltrator (noun)	interloper (noun)
an intruder (as troops) with hostile intent	someone who intrudes on the privacy or property of another without permission
someone who takes up a position surreptitiously for the purpose of espionage