Trojan:Android/Geinimi

Classification

Category :

Malware

Type :

Trojan

Platform :

Android

Aliases :

Trojan:Android/Geinimi, Trojan:Android/Geinimi.A, Trojan:Android/Geinimi.B, Trojan:Android/Geinimi.E

Summary

Trojan:Android/Geinimi variants harvest details of the affected device and forwards them to a remote location; they are also capable of executing remote commands on the device, such as sending SMS messages and making phone calls.

Removal

Once the scan is complete, the F-Secure security product will ask if you want to uninstall the file, move it to the quarantine or keep it installed on your device.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

Trojan:Android/Geinimi variants were first seen in the wild in China in November 2010. The malware is distributed as a malicious executable packaged in trojanized third party applications.

On executing the trojanized 'carrier'applicaiton, the malicious executable is also started as a service, which acts as a receiver to intercept incoming SMS messages.

When active, Geinimi variants collect details of the infected device, such as:

  • Telephone number
  • Voice mail number
  • International Mobile Equipment Identity (IMEI) number
  • International Mobile Subscriber Identity (IMSI) number
  • Device hardware information
  • Operator country and name
  • Service provider name

In addition to its data-collection routine, Geinimi is able to connect to remote servers, from which it receives encrypted commands to execute various actions on the device, such as sending SMS messages and making phone calls. As such, this is one of the most complex Android malwares found to date.

Variants

  • Trojan:Android/Geinimi.A
  • Trojan:Android/Geinimi.B
  • Trojan:Android/Geinimi.E

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