Trojan:Android/NewBak.A usurps the name and appearance of a legitimate mobile banking application. When users enter banking details into the app, the information is silently recorded and forwarded to a remote server.
Trojan:Android/NewBak.A steals the name, app icon and appearance of the legitimate My One Wallet mobile banking application. If the user enters their bank card details into the trojan's interface and presses OK, the app takes a screenshot of the submitted data and sends it to a remote server (most likely the trojan's Command and Control server).
The trojan also downloads another file from the same server onto the device.
Newbak.A imitates an app that is intended for use by South Korean mobile banking users, so it's likely this trojan targets mainly Korean or Korean-speaking users.