Downloading, possessing, or running SpyNote without explicit authorization on systems you do not own is a crime in most countries (CFAA in US, Computer Misuse Act in UK, similar laws globally). Even owning the builder can lead to prosecution if intent is proven.
Protecting against Spynote 65 and similar threats involves a multi-faceted approach: spynote 65 github full
If you are a security researcher or penetration tester, here are legitimate paths: Computer Misuse Act in UK
While the specific features can depend on the context in which Spynote 65 is being used, some common capabilities include: some common capabilities include: