Odious.A is a Word macro virus that contains a destructive payload.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
When a user opens Visual Basic Editor of Word Application the virus exits it and replaces the file C:\AUTOEXEC.BAT with the following:
Deltree c:\*.* /y" "echo Fu** you...."
On that way the virus tries to erase all the contents of the C:\ drive, next time when the system is restarted.
Technical Details: Katrin Tocheva, F-Secure