The worm previous identified as NetSky.AH and NetSky.AG has been renamed to Buchon. A closer look revealed that they have little in common. For more details, please see Buchon
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
More information on 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.