Trojan:Android/Kmin

Classification

Malware

Trojan

Android

Trojan:Android/Kmin, Trojan:Android/Kmin.A, Trojan:Android/Kmin.B, Trojan:Android/Kmin.C

Summary

Trojan:Android/Kmin variants display a message as a decoy, while silently performing multiple malicious routines, including sending SMS messages to a premium-rate number and downloading and installing an additional application onto the device.

Removal

Automatic action

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.

Suspect a file is incorrectly detected (a False Positive)?

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 detection database 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.

Find out more

Knowledge Base

Find the latest advice in our Community Knowledge Base.

User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

Upon execution, variants in the Kmin trojan family display a message asking the user for a permission to proceed with a specified action; the A variant asks whether the user wishes to install a paid app and subscribe to a service, while the B and C variants only enquire whether the user would like to install a paid application.

Regardless of whether the user accepts or declines, the app will proceed with the following actions:

  • Sending the Internation Mobile Equipment Identity (IMEI) number and phone number to a remote server
  • Sending SMS messages to a premium-rate number
  • Downloading and installing another application
  • Running services in the background

Variants

  • Trojan:Android/Kmin.A
  • Trojan:Android/Kmin.B
  • Trojan:Android/Kmin.C

More

This malware is discussed in further detail in: Q1 2012 Mobile Threat Report (PDF).