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Avast blocks opening Dropbox Web site from the application

Screenshot 2019-11-01 23.07.06.png Avast notificationWhen trying to launch the Dropbox Web site, from the icon of the application, Avast blocks it identifying it as phising (see attached image).

It happens also when trying to reach Dropbox from the links ("Share..","Version History", etc.) of a file in the local folder.

Reinstalling Dropbox, or unlinking/linking to the account, does not solve it.

(Otherwise, there is no problem when opening the Dropbox web site by login in the web browser.)

I am using macOs Catalina and Chrome.

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Accepted answers

Lusil

Hey again @Debby M., thanks for nudging us here.

As @Rich mentioned previously, this is a false positive. This can occur when an application is incorrectly flagged as malicious due to an overly broad detection signature or algorithm used in an antivirus software.

In any case, rest assured, the official Dropbox desktop app isn't a phishing attempt and our team is further looking into this matter.

If you have any other concerns, we are always here to assist. Hope this helps to some extent!

All comments

Lusil

Hey @faustino1, thanks for reaching out to us about this.

To ensure that we cover some initial ground, could you please confirm for me if your desktop app is syncing or if it's completely synced and up to date?

You can check this by hovering over your Dropbox icon on your system tray or menu bar.

Let me know what you find!

faustino1

It is completely synced and up to date (for the selected folders according to Selective Sync).

Lusil

Thanks for confirming that for me, @faustino1.

I've followed up with a ticket to the email associated to your Community profile to have a more in-depth look on this together. Please check your inbox for my latest message.

Looking forward to hearing back from you!

blu

Windows Defender (Windows 19) keeps warning that I have a threat from a Virus called “exploit:PDF/Ticanoti.A“ located in the Dropbox Cache. Moments after Defender erases the file the warning comes again. I tried to delete everything in the dropbox.cache, but there is a folder that cannot be deleted (I tried several ways, also with the cmd command del). Even after a new start with dropbox deactivated and no app, running the delete-command gives me the error that there is a file in use (code 0x80070091). Also the dropbox synchronization seems to be stuck with 6 files to synchronize.

I suppose Dropbox keeps synchronizing, since the problem does not appear when the Dropbox-App is closed. I cannot locate the file that causes the troubles. Any ideas what could help?

JiMi0404

I have the same Issue :-(

blu

Me again: In the meantime I could delete the folder (with the repair-fuction for the whole disc drive). Nevertheless the virus warning keeps coming.

irobot

The message that appears is this:
Unable to access this siteThe page file: /// C: /Users/User/AppData/Local/Temp/dbxlyn2mwrdz.html#c848bac81ef1e4cc6c9cdcf95fb2ef9e3c2063b7799f114ba8f6f73cb8210fda316 temporarilybeen temporarily moved45
ERR_FAILED

irobot

[IMAGE LINK IS BROKEN AND CANNOT BE DISPLAYED]

irobot

Solution, please.

Mark

You actually need to say what the issue is @irobot

PoloMaol

Since this morning I get a phishing warning every time i try to open dropbox from menu. I have uninstalled and reinstalled, run avast, and nothing changed. It opens fine from my browser. What is happening ? How do i deal with this ? Screenshot 2019-11-03 at 11.05.27.png th this ?

RonStar19

when opening dropbox.com through the dropbox icon Avast gives a warning about a phishing file. Dropbox.com will not open. I tried this on 3 computers. Every attempt give a different filename. The treat stayes the same: HTML:PhisingDpx-CS[Phish]. There is no warning when opening dropbox.com through the browser.

System: Windows 10 / dropbox version 84.4.170 / Avast free version 19.8.2393 - 18.8.4793.544.

Is this a phishing file in the dropbox app? Is it a false warning by Avast?

irobot

Similar problem that RonStar19 relates:

"when opening dropbox.com through the dropbox icon Avast gives a warning about a phishing file. Dropbox.com will not open. I tried this on 3 computers. Every attempt give a different filename. The treat stayes the same: HTML:PhisingDpx-CS[Phish]. There is no warning when opening dropbox.com through the browser".

My system is Windows 7.

Same question:

"Is this a phishing file in the dropbox app? Is it a false warning by Avast?"

Thanks.

derekchan

I have the same problem. AVG blocks it. Unlink, uninstall dropbox, reinstall dropbox, scan pc, it doesn't solve the problem

[IMAGE LINK IS BROKEN AND CANNOT BE DISPLAYED]

AtoW

Same problem!

Can't access my Dropbox online account. Whenever I try to open a file, my antivirus (AVG, Mac OS) shows the message: "We've moved dbxlv8meh35h.html in our Quarantine because it was infected with HTML: Phishing Dpx-Cs [PHIS]."

Mette5

Same problem with my online account + I can not open my excel files from my offline dropbox account.
I believe the dropbox system was recently updated ?

Strawdozz

Same problem. Advice would be appreciated. File is called HTML:PhisingDpx-CS[Phish].

Not very encouraging name. Is this dropbox? Is it a false alarm?

DB_User31

I have the same problem on my MAC. If I try to use the link in the app, I get that same warning. If I use my browser to go to Dropbox.com, there is no problem. I just spent an hour on the phone with Avast. Their conclusion is that the link Dropbox provides in the app is a malicious link. They assured me that my computer is fine and advised me to contact Dropbox. This is easier said than done. Apparently they do not have phone support - just that ridiculous bot, that did nothing accept arrange for an e-mail contact which could take up to 72 hours. Some customer support!

Mette5

As we have different kinds of virus programs - it seems obvious that the problem is not in the virus program - but in dropbox itself..... So please dropbox !!!! get on the line here..

DB_User31

I have the same problem on my MAC. I contacted Avast. Their conclusion is that the link Dropbox provides in the app is a malicious link. They assured me that my computer is fine and I should use my browser, instead of the link, to access Dropbox.com. They also advised me to contact Dropbox. Which I tried, but they do not have phone support - just that ridiculous bot. All it did was arrange for an e-mail contact which could take up to 72 hours. That is not what I would call quality customer support!

dhkirk

I am getting the same from Avast, on Mac Catalina 10.15.1

Only started two days, possibly with installation of 10.15.1 Screen Shot 2019-11-03 at 12.41.55 PM.png

Rich

"Is this a phishing file in the dropbox app? Is it a false warning by Avast?"

It's a false positive. That file isn't from the Dropbox website. When you use the icon in the Dropbox app to visit the website, the app directs you to a locally generated HMTL file which then redirects to the Dropbox website. That's the HTML file you're seeing in the screenshot above.

AtoW

So what's the solution?

schimpn

same issue ..

need a solution

UEBT

same issue here...

Debby M.

SFirstly - huge relief that this is not just me.

Dropbox - ANSWER NOW PLEASE!!

Arpostudio

Same Problem!!

But also, all my files and folders are deleted!!

HELP

Beobrand

Another request for a solution...

Richard L.65

Monday 11-4-2019. I have the same exact problem. I am using Avast antivirus and it gives tme the same exact issue. If this is a new Dropbox cookie you need to clear it or let tus know to ignore it asap.

schimpn

It seems indeed that if i use a new page in my browser to access my account via dropbox website login page

There is no problem to access to all dropbox tools and your folders

in the meanwhile waiting for the problem to be solve with the dropbox icon ...