1) What it is (is it a mt4|mt5 indicator or Expert Advisor?)
They are 2 MT5 expert adivisors
2) How it works
These are bots that buy and sell
3) It’s usefulness and indicate if it has limitations(expiry, license etc)
Tehy have a site validation to specific account(license), they have an expiring date
4) What you want us to do.
Decompile files and provide their respective source code.
Let me know a restrict place where I can share the files, other than this one.