Unable to open MS-Office-Files from Strato-Hidrive-Cloud

[DerSkipper]

Hello,

for month and years i am using the Strato-Hidrive-cloud to store a backup urgent documents. Of course there there are al lot of MS-Office-Files also Word, Excel Access etc. also scored in this cloud. For about 4 or 6 weeks Malwarebyte does not allow me any more to open those files, which are identical with the "originals" on  my local HD telling me about Exploits: Here is a sample

 

Malwarebytes
www.malwarebytes.com

-Protokolldetails-
Datum des Schutzereignisses: 31.10.20
Uhrzeit des Schutzereignisses: 11:47
Protokolldatei: 7bfb70b8-1b66-11eb-86b3-00ff30971957.json

-Softwaredaten-
Version: 4.2.1.89
Komponentenversion: 1.0.1070
Version des Aktualisierungspakets: 1.0.32288
Lizenz: Premium

-Systemdaten-
Betriebssystem: Windows 10 (Build 18362.1139)
CPU: x64
Dateisystem: NTFS
Benutzer: System

-Einzelheiten zu Exploits-
Datei: 0
(keine bösartigen Elemente erkannt)

Exploit: 1
Malware.Exploit.Agent.Generic, , Blockiert, 0, 392684, 0.0.0, , 

-Exploit-Daten-
Betroffene Anwendung: Microsoft Office Excel
Schutzebene: Application Behavior Protection
Schutzverfahren: Exploit payload macro process blocked
Dateiname: 
URL: 

 

(end)

The files open properly from the local drive. I tried to put the concerned folder to the exception list, but that does not work either and I do not want to add every single file to this list mainly because i KNOW that those files are safe. Where ist the problem?

Please pardon my poor English, I hope I could nevertheless make myself understood

Best regards

Ha-Jo
(the old Skipper)

[Malwarebytes]

***This is an automated reply***

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[exile360]

Greetings,

Because Exploit Protection monitors behavior for exploits, excluding files and folders doesn't work to prevent it from blocking what it detects as exploit behavior.  That is why the exclusions did not work.

That said, there is a known issue which causes MS Office to be blocked incorrectly due to an issue with non-default settings.  To fix the issue, open Malwarebytes and go to settings by clicking the small gear icon in the upper right, then go to the Security tab and under the Exploit Protection section make sure that the option to block penetration testing attacks is set to off, then click the Advanced settings button and click on the Restore Defaults button and wait around 30 seconds to allow the protection to reset itself, then test to see if the problem is fixed.

The images below should help if needed:

Please let us know if that fixes the issue or not.

Thanks

Edited October 31, 2020 by exile360

[DerSkipper]

Hello exile360, thank you so much for this fast and helpful answer, it really worked fine!

Best Regards

Ha-Jo

[exile360]

Excellent, I'm glad to hear that.  If there is anything else we might assist you with please don't hesitate to let us know.

Thanks