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  3. Android.Exprespam


Risk Level 1: Very Low

January 6, 2013
January 7, 2013 9:38:43 AM
Infection Length:
41,728 bytes
Systems Affected:
Android.Exprespam is a Trojan horse for Android devices that displays a fake message and steals personal information stored on the compromised device.

Android package file
The Trojan may arrive as a package with the following characteristics:

APK: frhfsd.siksdk.ujdsfjkfsd
Version: 1.1
Name: App for Android Devices (in Japanese)

Once installed, the application will display an icon with the text App for Android Devices (in Japanese).

Antivirus Protection Dates

  • Initial Rapid Release version January 6, 2013 revision 033
  • Latest Rapid Release version February 19, 2013 revision 016
  • Initial Daily Certified version January 7, 2013 revision 003
  • Latest Daily Certified version January 19, 2013 revision 024
  • Initial Weekly Certified release date January 9, 2013
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: Steals personal information.


  • Distribution Level: Low
  • Target of Infection: Android devices.
Writeup By: Masaki Suenaga

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