Anti-virus researchers at Symantec yesterday spotted the first virus capable of infecting 64-bit Windows systems.

Rugrat was created to prove a point rather than to be released into the wild. The proof-of-concept virus poses no immediate risk to Itanic users, but as the population of IA64 systems grows that risk of 64-bit worms will also increase. The virus is also capable of infecting 32-bit computers running 64-bit emulation software.

via The Register