If you're not sure whether a file is malicious or not you can always submit it for futher analysis by Eset:
- Open Nod 32 > Click on Tools > Submit file for analysis:
- This will open up a small window:
- In "File" click on the small button (..) and browse for the target file
- In "Comment" give a short description of the issue (e.g since I've downloaded this file my computer is behaving....)
- In "Contact" give an email address for feedback
Finally click on the Submit button