Defender History says opuc.dll has potentially unwanted behavior.

  • Thread starter Thread starter Guest
  • Start date Start date
Typically, you do a google search on the name and see what it finds. In this
case the dll has to do with Microsoft Office Updates.
 
Some additional info:

The dll is for the Microsoft Update Installation Engine and is located in
folder C:\Windows\Downloaded Program Files. It is an ActiveX component that
checks for Office Updates. It is possible that the version you have is
either out-of-date or may have been substitued with a bogus dll. The latest
version should be supplied by Microsoft and have a version number of
12.0.3208.1003 and dated 9.1.2005. I can not determine why Windows Defender
is alerting you because I have the active X dll installed on my system and WD
gives me no alerts.

To answer your more general question of how can you tell, it is sometimes
not easy. You may have to look at a clean system and compare module size,
date, etc. or go to an ati-spyware forum and see what others have posted.
 
It just occurred to me that possibly you may be getting the alert by real
time protection (Permit or Deny). If that is the case and you have verifed
that the dll is good, then specify Permit.
 
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