Im a ps3 guy but im sure i can help you. Its not really a "newbie" question. There's many people who scam and all those viruses out there and you just want to avoid that. Its really simple. Search on youtube "how to get black ops mod menu". Thats it. These are the things that can show it might be a scam.
1. If it doesnt allow you to leave a like or comment dont bother downloading it.
2. More dislikes than likes.
3. Has at least 1000+ views in an hour without having no likes or commments.
If your having trouble just message me back

. Good luck!