Trojan:Android/FakeToken steals SMS messages containing mTAN numbers generated by banks to validate online transactions.
F-Secure's Mobile Security product blocks installation of this program with default settings.
FakeToken.A pretends to be a mobile token generator, but actually intercepts and steals SMS messages containingM obile Transaction Authentication Numbers (mTANs), which are automatically generated by a bank and sent to a user's mobile device to validate an online transaction.
On execution, FakeToken intercepts SMS messages containing mTANs and forwards them to a remote location or to a user. Details of where the SMS messages are sent are stored in an XML configuration file. In addition, the malware may also forward details of the compromised device to a remote location.
This malware is discussed in further detail in: Q1 2012 Mobile Threat Report (PDF).