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Recently I received a security threat alert triggered by Dropbox, as seen in the screenshot below:

Dropbox Security Threat

What happened here? Or this is a false alert from Microsoft Security Essentials?

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Hit the apply actions! You are infected with nasty scripts. – Moab Apr 12 '11 at 13:55
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2 Answers

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This is nothing to do with DropBox - even your screenshot shows what the problem is. I'm guessing one of your computers with DropBox does not have an up to date antivirus, so it didn't pick up the infection, but when DropBox replicated those contents through to this computer it spotted it because of MSE.

The upside - your local machine is probably not infected, as MSE picked it up and suspended the file.

You will need to clean your other machines that share the DropBox though.

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+1 for mentioning other devices that sync with the same dropbox – BloodPhilia Apr 12 '11 at 14:37
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up vote 7 down vote

Submit a ticket or contact abuse@dropbox.com.

It seems one of your synced computers was infected with Ramnit.B and that (the file) synced with your Dropbox. Ramnit.B is not Dropbox specific.

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Dropbox is just syncing files. The virus was provided by the user, not by Dropbox. – user39559 Apr 12 '11 at 12:45
As said above, it's not a Dropbox problem if one PC puts a virus into the dropbox tree. – RichVel Oct 13 '11 at 7:36
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