A latest definition update error has led to detect avira as a virus itself. It detects avira as a spyware.
From avira forums
We have had an false positive for the Avira file AESCRIPT.DLL which was detected as "TR/Spy.463227".
The spreading of the false VDF was stopped immediately and is now corrected with a new VDF.
Please update your Avira protection to fix the false positive.
Avira Operations GmbH & Co. KG