Windows / system32 / cpan.dll is a virus
Out of Norton, but cannot be deleted, the security mode cannot be deleted or renamed the file.
HKEY_LOCAL_MACHINE / SOFTWARE / Microsoft / Windows NT / CURRENTVERSION / Windows / Appinit_dlls has its name.
When the key value is cleaned, it will immediately restore this key value, and if the key value is emptied, quickly RESET computers, let the virus restart in the future and restore the registry.
The file is then deleted in the redemption mode.