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Forum Discussion
I was infected by a Trojan it's synced in Dropbox, too. What should I do?
When I try to open or install DropBox on my Windows laptop, I get an "Infection Blocked" error from Iolo System Mechaninc (My anti-virus program).
The infected object is reported to be C:\PROGRAM ...
I believe this may have something to do with Dropbox per se, as it doesn't appear to just be limited to users of Iolo System Mechanic.
This is my experience regarding this issue, in case it helps someone, which I have just discovered has resolved itself.
Timeline:
Tuesday, 03/20/2018 afternoon - Iolo System Mechanic System Shield Pop-up window appears stating it found a file infected with the Eldorado virus, said file at this initial report was:
[ALL CAPS] - c:\program files (x86)\dropbox\client_46.3.60\psutil_psutil_windows.pyd
is infected with w32/s-462f1630!Eldorado, and System Mechanic quarantined the file.
I know that there should not be, other than during upgrade installation, other 'client' folders in the dropbox folder.
Next I went to the dropbox folder and visually verified that there actually was both a 'client' folder, and a 'client_46.3.60' folder created on this same day. There are indeed both.
At this point I assumed an automatic background upgrade installation had been in progress (I've had DropBox on this laptop for 7+ years).
I then ran a full system malware scan, and, in addition to that file, it found and quarantined a total of three more files, all infected with the same version of Eldorado, as follows [paths ALL CAPS]:
c:\program files (x86)\dropbox\update\download\{CC46080E-4C33-4981-859A-BBA2F780F31E}\46.3.59\DROPBOXCLIENT_46.3.59.EXE
c:\program files (x86)\dropbox\install\{229A986C-0B31-4104-AB08-95B1F788D7B0}\DROPBOXCLIENT_46.3.60.EXE
c:\program files (x86)\dropbox\update\download\{CC46080E-4C33-4981-859A-BBA2F780F31E}\46.3.59\DROPBOXCLIENT_46.3.60.EXE
Regarding this issue: I did nothing more, other than no longer use Dropbox, for the remainder of this day.
Wednesday, 03/21/2018 morning - I noticed when downloading a Google document I had completed, to a dropbox sub-folder on my laptop for backup and syncing with cloud storage, that syncing was not happening. I checked and discovered that Dropbox had not loaded.
Regarding this issue: I did nothing more, other than no longer use Dropbox, for the remainder of this day.
Thursday, 03/22/2018 evening, just prior to writing this up - I decided to attempt a re-install.
I go to Settings->Apps & features (Win10), click on Dropbox and notice that it's version is 46.3.60 AND dated today, 03/22/2018. I find this very interesting, so...
I performed a 'Google' search on 'Dropbox Eldorado Virus' and found this report I am replying to.
I checked the dropbox folder and discovered the following: The 'client_46.3.60' folder had been removed and the 'client' folder had Date Modified set now to 03/22/2018.
I checked to see if Dropbox was running in the background: It was not.
I found and manually launched Dropbox and the following happened: It succesfully loaded and synced my laptop's Dropbox folder with cloud storage.
Based on this result it appears that by my doing NOTHING since the initial issue began on Tuesday, for me, that this issue was resolved through one of the following:
Self-correction...
Dropbox became aware of the issue and fixed it ASAP, ergo the apparent background update installation that happened on my laptop today.
My leaving the 4 affected files quarantined and doing nothing prompted Dropbox to attempt another background update installation and succeeded.
Or...
I have now permanently deleted the 4 quarantined files.
Next I will see what happens Friday morning, 03/23/2018, after I fire my laptop back up, and find out if Dropbox starts up as usual or if I have to manually start it, and, if that Eldorado virus returns, which I suspect will not be the case. I'll try to remember to update this report with what I experience at that time.
Karina
Dropbox Staff
Dropbox StaffI have exactly the same issue with my work computer. I cannot add exception on it. What should I do? Should I request IT people to write exception?
- Walter
Hey there again Loni H. - I just got to see this post ( I have already replied to you here).
Can you share some more information about your current situation so as to see how we could move forward from this point? When you say you cannot add an exception on your work computer, I guess you're referring to the antivirus/security program running on that computer, right?
If I were in your shoes, I'd give this page a try first. If you still experience issues with this, I would suggest that you reached out to your IT department or your company's network administrator so as not to tamper with something you shouldn't in the first place ( I don't know the specifics of your work environment but you get the drill).
Let me know what you find!
thanks it helps me recovering this issue.
I'm having lot of Questions by doing this. trust is worthy not to be lost !! so I'm not under threat by doing this!!? Should there is proper way to clear things ?
by the way this is how to add the folder from Microsoft Security page- Walter
Hey there samarik - nice screenshot :wink:
As per your inquiry now, could you please shed some light on what exactly is your concern about this? Are you having a problem setting an exclusion on your Windows Defender?
Any clarification would be highly appreciated. Thanks!
Hi every one,
wrote:Hey there - nice screenshot :wink:
As per your inquiry now, could you please shed some light on what exactly is your concern about this? Are you having a problem setting an exclusion on your Windows Defender?
Any clarification would be highly appreciated. Thanks!
thanks, Walter for Reply, Okay for about one week my widows' defender start to flag Trojan when Dropbox app syncing during bootup, the details show that this folder is (.dropbox.cache) with temp extension file in it. Every time starts windows, I delete this folder until I did the Exclusion as it a false indication, then its synced fully in LOL. it was a Real trojan>>> immediately deleted from shared folder online and did some test by https://www.virustotal.com/en/ on it locally all site Flagged it, so, I kept the file for more analyzing
actually DropBox app was doing a great Job Declaring this file to windows security,
now I have cleaned my System. it was
How do I add the dropbox cache folder to the ignore list for Windows Defender/Win 10
- Walter
That's a question for another forum I guess MikeMoyer but still I'd like to help so please give these steps a try and let me know if they did the trick for you:
- Go to Start > Settings > Update & Security > Windows Security > Virus & thread protection.
- Under Virus & threat protection settings, select Manage settings, and then under Exclusions, select Add or remove exclusions.
- Select Add an exclusion, and then select from files, folders, file types, or process.
Hope this helps!
