NOD32 detected it because probably someone submitted that file to nod. So whenever you download something scan it on virustotal and run it in sandbox or virtual machine first. Install a firewall also, so you can keep an eye on incoming and outgoing connections.
Totaly agreed!
I personaly, have developed a program that act like a virus/trojan (totaly FUD).
Sending it to virustotal, ZERO detection.
Firewall? (As it requires admin privilegies to be installed, it creates The rules to bypass)
Antimalware? (Starting as a service, it runs before or together these kind of programs, so if it is not a known virus, my rights allow me even to disable it)
When The user opens The door, there's not much an antivirus/antiwhatever can do....
And lets clarify The others about JPG u've clicked...
If u take a JPG file and rename it to EXE, Windows wont execut it.
That file should be named file.jpg.exe (with a JPG icon, trying to fake being a JPG)
I'll not get tired to write about it every time I have The opportunity.
Remember: in The cryptocurrency world, The user is his own Bank. So, we have to know The basics...