Nabload.CXU is a Trojan whose main objective is to download several variants of the family of Banker Trojans to the affected computer from several websites.

The variants belonging to this family are designed to steal passwords and user's data related to banking entities. Consequently, confidential information about the user is endangered.

Nabload.CXU does not spread automatically by its own means. It needs an attacking user's intervention in order to reach the affected computer.

Technical details can be found at this Trend Micro page.