This is a complex virus from Taiwan. It has been spread in at least a fake RAR 2.5 beta version.
Olivia activates on the 10th of April and the 23rd of December. On these dates it will open the CD-ROM drive of the machine, ask the user to insert a music CD and then it starts to play the CD. After this the virus overwrites the beginning of the hard drive and displays a message in Taiwanese. After this the machine freezes, with music still playing.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.