> Viruses & Risks > Android.Simplocker.B


Risk Level 1: Very Low

July 23, 2014
August 6, 2015 3:00:02 PM
Infection Length:
Systems Affected:
Android.Simplocker.B is a Trojan horse for Android devices that may encrypt files on the compromised device. It then asks the user to pay in order to decrypt these files.

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

Package name:
Version: 1.0

Once installed, the application will display an icon of a white lower case F on a red background above the text Video Player.

For more information see our blogs:
Simplocker: First Confirmed File-Encrypting Ransomware for Android
The dawn of ransomwear: How ransomware could move to wearable devices

Antivirus Protection Dates

  • Initial Rapid Release version July 23, 2014 revision 006
  • Latest Rapid Release version March 30, 2017 revision 003
  • Initial Daily Certified version July 23, 2014 revision 025
  • Latest Daily Certified version March 30, 2017 revision 008
  • Initial Weekly Certified release date July 30, 2014
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: Encrypts files and requests payment.


  • Distribution Level: Low
Writeup By: Roberto Sponchioni

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