Threat Description

Trojan: Android/FakeToken


Category: Malware
Type: TrojanAndroid
Platform: W32
Aliases: Trojan:Android/FakeToken, Trojan:Android/FakeToken.A


Trojan:Android/FakeToken steals SMS messages containing mTAN numbers generated by banks to validate online transactions.


Automatic action

F-Secure's Mobile Security product blocks installation of this program with default settings.

More scanning & removal options

More information on scanning or removal options are available in the documentation for your F-Secure Mobile Security product on the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

Technical Details

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).


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