According to The Register, malware and botnets are appearing on Apple’s OS X. This is not simply a proof-of-concept attack, but one that is out there in the wild.

The story quotes an Australian web developer who awoke one morning to find his Mac running at 100% of computer  resource usage with unfamiliar processes pushing it to the limit. The Register goes on to explain that

“The malware is surreptitiously included in copies of Apple’s iWork 09 productivity suite and Adobe’s Photoshop CS4 that are distributed on warez sites. Intego said three months ago more than 20,000 people had downloaded the rogue installers.”

We have recently heard reports of viruses or fake software turning up on Apple iMacs, and this story would seem to confirm it. Perhaps the days of Apple computers being resilient to viruses and attack are coming to an end.