First known 64-bit virus threat found
Security experts say they’re seeing the first viruses specifically designed to attack 64-bit software. Symantec has found what it believes to be the first known threat to 64-bit Windows systems, a proof-of-concept virus labeled w64.rugrat.3344. Rugrat can apparently attack 64-bit Microsoft Windows files successfully but won’t infect 32-bit files.
Even the big boys aren,t safe any more 
Bob,
Thank you for this bit of interesting news. Never ceases to amaze me at how hard people try to mess computers instead of using their skills in a more condusive way.
David,
I read the article from Symantec and this was particularly interesting:
Note: A true 64-bit computer is not required for this virus, as it can be run on a 32-bit computer that is using 64-bit simulation software.
So anyone “faking a 64” has to be on guard.
Techie
Thanks Techie101 for the additional info.
At my age however I don’t have to worry about that cause I’m to old to fake anything. ;D
Slightly off-topic, but a memory triggered by your comments – am I correct in assuming that back under Win 3.1, WinG was used to, in effect, “fake a 32”? Thanks for any enlightenment.
Mac
6
Techie,
Can this virus run under Virtual PC? VPC “fakes” the windows OS on Mac computers
Mike,
That takes me far back, but I think you are correct. In the early days of Windows, right before the “official 32” was borne, a 32 bit “simulation” was used very much like the “64 simulation” that we have discussed here.
Nostalga…I just love it!

Techie
Thanks for the info about this new type of virus reference 64 bit processing.