Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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?

share|improve this question

migrated from Apr 12 '11 at 5:06

This question came from our site for power users of web applications.

Hit the apply actions! You are infected with nasty scripts. – Moab Apr 12 '11 at 13:55
up vote 13 down vote accepted

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.

share|improve this answer
+1 for mentioning other devices that sync with the same dropbox – BloodPhilia Apr 12 '11 at 14:37

Submit a ticket or contact

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.

share|improve this answer
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

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.