Data Loss Prevention (DLP)
Getting warnings that Word, Excel, PowerPoint plugins are tampered after upgrading the endpoint agent to 15.7 GA.
The DLP Endpoint Office plug-ins are failing to load.
The endpoint logs show errors saying the plug-in is tampered with.
DLP Word plug-in is tampered with
DLP Excel plug-in is tampered with
DLP PowerPoint plug-in is tampered with
We have found the possible causes:
Release : 15.7
Component : Endpoint Agent Microsoft Office plug-ins
Windows 10 1909
Office 2016 32-bit
If Office is set to only trust signed add-ins see this KB.
For the GPO configuration, we reproduced the issue using the GPO policy instructions mentioned in this link;
The important point to note is that when the policy add-ins are set to a value of 2, the user will have the option to enable the add-ins.
Once the "Enable Content" button is pressed, all add-ins are set to "Active", not just the DLP add-ins.
For the defective Office language pack, we repaired the defective Office language pack.