Bob,
We got it partially settled down by excluding all Omniback files/folders - both under Program Files and ProgramData.
However, we didn't fully resolve it until we excluded the RDS.EXE process from scanning as well.
This was with Microsoft FEP. I can't speak to what any other AV programs might do. At least it didn't happen on one of our main production CM's. I also don't know what might need to be excluded for DP 8.x. This was a 7.03 cell.
Thanks,
Ken