Apple has issued a support bulletin where they indicate that a “small number” of iPods shipped after Sept 12th, 2005 were shipped with the “RavMonE.exe” virus already on the iPod.
In the face of blame, Apple touts their own operating system:
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This known virus affects only Windows computers, and up to date anti-virus software which is included with most Windows computers should detect and remove it. So far we have seen less than 25 reports concerning this problem. The iPod nano, iPod shuffle and Mac OS X are not affected, and all Video iPods now shipping are virus free. As you might imagine, we are upset at Windows for not being more hardy against such viruses, and even more upset with ourselves for not catching it.