Win32.Crypto is an interesting virus from technical point of view, but it's not spreading in the wild and thus not a cause of concern for the end users.
Crypto infects EXE and DLL files and spreads when these are exchanged between machines.
The most interesting part of the virus is that it encrypts data on the hard drive with real-time on-the-fly encryption. So, if you remove the virus, your data is left encrypted. Encryption is done with Microsoft's CryptoAPI.
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.