I have ran loaders in the past for injecting cheats but I don't remember turning off "Real-time protection". The source I received the injector from tells me I have to do this or it won't work. Is this legit?
Could be legit, but i would never trust someone, if you don't know him. (Also use always virustotal)
If you want a cheat which is working and legit, then you need to spend some money. (Black Market)