>Hi everybody,
>
>Just received a message with Jnelson as from and this text:
>
>This is a WinXP patch
>I wish you would like it.
>
>This message came without attachment...

Probably this virus or a variant, which has been around since April last year.
http://www.trendmicro.com/vinfo/virusencyclo/default5.asp?VName=WORM_KLEZ.G
http://kb.trendmicro.com/solutions/solutionDetail.asp?solutionID=11178