You might see that the Dropbox Community team have been busy working on some major updates to the Community itself! So, here is some info on what’s changed, what’s staying the same and what you can expect from the Dropbox Community overall.

Forum Discussion

UR1ofTHEM's avatar
UR1ofTHEM
Helpful | Level 5
7 years ago

Dropbox conflicting with Anti virus (Norton/Sophos)

Norton Firewall Alert: "Dropbox 49.4.69 does not have a valid digital signature."   Can someone please help with this? I don't understand what's going on.
Error Messages
Security
Setting up the apps
Sync
  • Lucio's avatar
    Lucio
    7 years ago

    Users that reported this issue through support tickets have mentioned that after reinstalling the latest versions of their antivirus, as well as the Dropbox desktop application, the message doesn't appear anymore and the issue is resolved.

     

    Please try with this and let us know if it's not the case for you. Please also let us know what are the versions you're using.

     

    Thanks!

Jane's avatar
Jane
Icon for Dropbox Staff rankDropbox Staff
7 years ago
Hey UR1ofTHEM, welcome to the Dropbox Forum & thanks for checking in with us regarding this question, I hope you’re having a great week so far! 
 
Just as a point of reference, you may keep in mind that sometimes antivirus programs will pick up partial files in your ".dropbox.cache" folder as false positives and continuously quarantine them.
 
The Dropbox desktop client uses the ".dropbox.cache" folder as a staging area to download your files in small chunks. 
 
To bypass this behavior, I would recommend adding the Dropbox cache folder to an ignore list so that Dropbox can correctly sync that file and/or temporarily disabling your antivirus. Once synced, you should no longer see these warnings or quarantine messages.
 
If you run a very quick search on google, you’ll also be able to locate this set of steps in regards to your Antivirus, so as to resolve this issue as soon as possible. 
 
Hopefully this is helpful to you, though I’m always here if you have further questions, so please keep me updated on this discussion if you need further clarifications. Thanks again & happy Monday! 
  • CagleTech's avatar
    CagleTech
    Explorer | Level 4
    7 years ago

    I have the same situation as UR1ofTHEM.  The file in question is not in the cache.  It is in the path C:\Program Files (x86)\Dropbox\Update\Install\{06CD02FF-6D05-4F19-B801-C267B1180070}

     

    I suspect it may very well be a legitimate file/update to the Dropbox Program, or it could be a trojan ransomware virus monster from hell.  How do I confirm through Dropbox.com, or wherever, if it's legitimate.

     

     

     
    • Jane's avatar
      Jane
      Icon for Dropbox Staff rankDropbox Staff
      7 years ago
      Thanks for keeping me updated on the progress here CagleTech! 
       
      We’re currently looking into the behavior you’re experiencing internally & I’ll make sure to get back in touch with you here once I have more info on my end. Based on your description, the quarantined file resides in the Update folder & it should be relevant to the latest Stable Dropbox version (49.4.69), therefore it's not malicious.
       
      If I were in your shoes, I’d disable, or uninstall Norton while the upgrade goes through, and then re-enable it afterwards. 
       
      Meanwhile, have you contacted Norton’s support team on the issue by any chance (as the error message is on their end)? 
       
      Please do let me know how the steps above work for you in your next reply & I'll make sure to get back in touch as quickly as possible! 
      • pjw73nh's avatar
        pjw73nh
        New member | Level 2
        7 years ago

        For what it's worth, I submitted this file to VIRUSTOTAL.COM and it came back clean.

         

        No engines detected this file
        SHA-256 803c20e7423bcea5b6961ae760a31ecbfb6144c5c2016bc60daafae9b86392d7
        File name DropboxClient_49.4.69.exe
        File size 108.93 MB
        Last analysis 2018-05-15 19:59:25 UTC
         
    • UR1ofTHEM's avatar
      UR1ofTHEM
      Helpful | Level 5
      7 years ago
      CagleTech wrote:

      I have the same situation as UR1ofTHEM.  The file in question is not in the cache.  It is in the path C:\Program Files (x86)\Dropbox\Update\Install\{06CD02FF-6D05-4F19-B801-C267B1180070}

       

      I suspect it may very well be a legitimate file/update to the Dropbox Program, or it could be a trojan ransomware virus monster from hell.  How do I confirm through Dropbox.com, or wherever, if it's legitimate.

       

       

       

      Thanks.

About Apps and Installations

Have a question about a Dropbox app or installation? Reach out to the Dropbox Community and get solutions, help, and advice from members.

Need more support

If you need more help you can view your support options (expected response time for an email or ticket is 24 hours), or contact us on X or Facebook.

For more info on available support options for your Dropbox plan, see this article.

If you found the answer to your question in this Community thread, please 'like' the post to say thanks and to let us know it was useful!