I'm seeing more emails about this 'virus' which people believe and are unfortunately acting on. I was just about to pen something when I got this from a PC manufacturer and it seems to cover it well....
Evesham Technical Advisory Release:
We are once again receiving reports that some users are receiving an email warning them of a Virus alert affecting the SULSNBK.EXE file on their PCs.
This has been confirmed by all the major Anti-Virus companies as being a hoax virus. We would advise all our customers to delete this email if they receive it and not to perform any alteration to the SULSNBK.EXE file, as this is a file used by the Windows Operating System. As ever, we would recommend that users ensure adequate up-to-date anti-virus software is installed onto their PCs. Use and installation of third party anti virus software is supported by the software house concerned.
Please follow the following links for more information, including the Virus that originally spawned this hoax.
additional information from Norton Anti-Virus
additional information from McAfee Anti-Virus: