Hi there,
This happened with me too, after up to date this early morning and then avast detected some file at my windows and avast library file was infected by this variant trojan :
avast! [User]: File "C:\Program Files\Alwil Software\Avast5\redemption.dll" is infected by "Win32:Delf-MZG [Trj]" virus.
"%3" task used
Version of current VPS file is 091203-0, 12/03/2009
avast! [User]: File "C:\Windows\Installer\6976fe.msi|>Product.CAB|>PluginManagerExe" is infected by "Win32:Delf-MZG [Trj]" virus.
"%3" task used
Version of current VPS file is 091203-0, 12/03/2009
avast! [User]: File "C:\Windows\Installer\6976fe.msi|>Product.CAB|>PluginManagerUtils" is infected by "Win32:Delf-MZG [Trj]" virus.
"%3" task used
Version of current VPS file is 091203-0, 12/03/2009
avast! [User]: File "C:\Windows\Installer\6976fe.msi|>Product.CAB|>PluginManagerExe" is infected by "Win32:Delf-MZG [Trj]" virus.
"%3" task used
Version of current VPS file is 091203-0, 12/03/2009
avast! [User]: File "C:\Program Files\Skype\Plugin Manager\skypePM.exe" is infected by "Win32:Delf-MZG [Trj]" virus.
"%3" task used
Version of current VPS file is 091203-0, 12/03/2009
Some file has been quarantined by avast, but some file deleted by avast.
Is it FP or real infected?
For quarantined files, i submit it already to avast with avast 5 features.