You have noticed that the date of malware(virus) definitions is outdated and does not change even though the LiveUpdate was successful and the Status > Hosts > "Software and Services" tab shows all the scanners with updated malware definitions.
This is likely due to database corruption that is causing the date to be incorrect, possibly related to a recent network IP change.
Contact technical support for further assistance. You may also be able to resolve this issue by restoring a backup that is older than the date listed for the malware definitions and older than recent IP changes that may have occurred.