Windows defender picks up a hack tool from .dropboxcache - what is that?

[Jowelboy]

My Windows defender has been going off lately after spotting what it thinks is a Hacking tool: "HackTool:Win64/ProductKey.G!MSR" and it's always in my .dropbox cache\new_files.  It's happening every day.

Has anyone else had this happen?  Do I *actually* have a virus?  or is Windows Defender finding a false positive?

Thanks all,

Ian

[Rich · Accepted solution]

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@Jowelboy wrote:

"HackTool:Win64/ProductKey.G!MSR" and it's always in my .dropbox cache\new_files.

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It's likely just a false positive. Although rare, it can happen on occasion due to the way files are stored in the cache. Best to add the .dropbox.cache folder to your antivirus exclusion list.

[Jowelboy]

Thanks for that.  I suspected that might be the case.

Appreciate your quick response.

Ian

[kennyvan]

I think it's better to use any other antivirus instead of Windows Defender. After reading McAfee live safe review at https://antivirus-review.com/mcafee-review I've started using it and it has no conflicts with Dropbox because I often have the same issues with Windows Defender as you have. And adding to the exception list does not work in my case. And I have to do this after each update and it is annoying.