Most of mine download source and compile it or plain scripts like python/bash and move them some place.

If it is a -bin, I check the url and checksum to be sure that it comes from the official source and obviously I do not install software from companies that I do not trust. (and yes, every update. I have a dedicated timeslot in my calendar for that)

I don't know what type of blob you mean which would require any additional treatment like.