I had the same issue, reinstalled SOA just to get another month of normal operation... it's stuck again on a two month old defs with 20000001 status.
mirror begin...
Mirroring...
Using server:
http://download351.avast.com/iavs5xUsing server:
http://199.115.116.207/iavs5xSetting product 'abp' files (703 of 708 set)
Resetting existing files (reset 703 files, leaving 0 files).
Using server:
http://download405.avast.com/iavs5xmirroring 'abp' - nothing to do.
Setting product 'ais' files (4 of 708 set)
Resetting existing files (reset 4 files, leaving 0 files).
Using server:
http://download405.avast.com/iavs5xmirroring 'ais' - nothing to do.
Mirroring done.
Building distributions...
Building distribution 'distrib0'
Setting product 'abp' files (703 of 708 set)
Resetting existing files (reset 703 files, leaving 0 files).
Setting product 'ais' files (4 of 708 set)
Resetting existing files (reset 4 files, leaving 0 files).
Building distribution 'distrib0' done.
Building distributions done.
Uploading distribution 'distrib0'
Sumarizing...
Setting product 'abp' files (703 of 708 set)
Setting product 'ais' files (704 of 708 set)
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Please, don't tell me to kill mirror.exe and run it manually, it's NOT gonna cut it. I can't re-install Avast every time it breaks either.
At this point this and other repetitive various failures of Avast software clearly indicate that the product is not ready for production operation and QA department is practically MIA.