It's an original composition that's been sampled and used many times later. At the beggining there is some brass (mabe synth brass) used.
Wikipedia says:
"The track "Genesis" has been sampled several times throughout mainstream media. It was featured in an episode of the television series Shark and in television advertisements for Cadillac and Levi's. The song also appears in the video game Electronic Arts' Need for Speed: Undercover, and used in a gameplay trailer for Ubisoft's Assassin's Creed II. "Genesis" also appears in the trailer and ending credits of the film Echelon Conspiracy, and in the film Punisher: War Zone. It also features in an episode of Top Gear, where Jeremy Clarkson tests the Mercedes-Benz SL65 AMG Black Series."