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  3. Android.Opfake


Risk Level 1: Very Low

January 27, 2012
May 16, 2012 7:47:57 AM
Infection Length:
Systems Affected:
Android.Opfake is a detection for Trojan horses on the Android platform that send SMS texts to premium-rate numbers.

Android package file
The Trojan may arrive as one of the following APK packages:

Package name: wap.syst.two
File names: installer.apk, new_opera.apk, skachat.apk
Name: Installer
Version: 1.0

Package name: com.some.opera
File names: Opera_Mini_6.apk
Name: Opera Mini
Version: 1.0

Package name: com.soft
File names: Opera_Mini_4_4.apk, Opera_Mini_5_1.apk, Opera_Mini_6_1_Android.apk, Opera_Mobile_11_5.apk
Name: Install
Version: 1.0

For more information, please see the following resource:
Android.Opfake In-Depth

Antivirus Protection Dates

  • Initial Rapid Release version January 27, 2012 revision 002
  • Latest Rapid Release version April 17, 2015 revision 052
  • Initial Daily Certified version January 27, 2012 revision 001
  • Latest Daily Certified version April 18, 2015 revision 001
  • Initial Weekly Certified release date February 1, 2012
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy


  • Damage Level: Medium
  • Payload: Sends premium-rate SMS messages from the compromised device.


  • Distribution Level: Low
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.
Writeup By: Asuka Yamamoto and Costin Ionescu

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