An Australian hacker has found himself at the centre of an international corporate espionage investigation after leaking details of Microsoft's new Xbox and listing a prototype on eBay as a joke.

Perth man SuperDaE goes by many names and online aliases, most commonly Dan Henry, but for "safety reasons" he prefers to be called only "Dylan" and describes himself as a freelance security analyst.

Dylan would not say how he obtained the sensitive internal Microsoft information, or how he got his hands on a Durango (the code name for Microsoft's next-generation Xbox console) development kit, questions now at the centre of a joint investigation, which saw one of his Perth residences raided for five hours on Tuesday.

West Australian Police confirmed the raid, but would not say whether, as Dylan claims, an officer from the FBI was present.