Zitmo is the name given to the mobile versions of the mobile version of Zeus malware. Researchers have found several samples of a new version of the malware targeting the BlackBerry platform. BlackBerry has not been a common target for attackers, despite the high-value user base of corporate executives and government officials, but that may be changing now with this new version. The new Blackberry version shows up on an infected phone as Zertifikat when the victim runs the app, it displays a message in German telling her that the installation was successful.
Source: https://threatpost.com/zeus-comes-blackberry-080712/76885/