HKCert
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Hong Kong Google Play Store's Apps Security Risk Report (August 2016)

Release Date: 29 / 08 / 2016
Last Update: 29 / 08 / 2016

 

Hong Kong Computer Emergency Response Team (HKCERT) Coordination Centre cooperates with the National Computer Network Emergency Response Technical Team of China (CNCERT) for detecting malicious and suspicious behaviors of Apps from the Google Play Store, in order to study the security risk of apps in the Google Play Store in Hong Kong area. CNCERT provides us analyzed result, and we collate the detection result and publish security alerts to the public.

In the report of August, we have downloaded 119 apps from Play Store, where 4 apps have been identified as high risk. None of them were removed from Play Store (on or before 23-August). The detail of report is shown as follow.

Target scope

  • Top 50 Free Applications in Hong Kong area
  • Top 50 New Free Applications in Hong Kong area
  • Top 50 Free Games in Hong Kong area
  • Top 50 New Free Games in Hong Kong area


Scanned Apps

  • Successful downloaded and scanned: 119 apps
  • Unable to download via the system: 81 apps
  • Downloaded date: 7-August 2016
  • List of the downloaded apps: "Appendix 1" [download]

 

Analysis Overview

 

In this analysis, 119 apps were scanned for bad behaviors. 4 apps were identified as security high risk. Based on the level of security threat, the following apps listed below are defined as high risk apps, which refers to apps having behavior, which could cause direct harm to systems and users' interests.


1.    Scanning Result
 

List of security high risk apps

 

Application

High risk behavior description

Malware detection ratio by VirusTotal

Status #

1) 小小龍騎士    (v1.6.3)


Category:  Top Free Game
Installs: 5,000+

  • obtain geo-location information
  • obtain installed software information
  • obtain SIM operator name
  • connect to the Internet
  • obtain WiFi configuration
  • obtain device information

0 / 55 [Link]

Available on play store

2) Sniper 3D Assassin: Free Games    (v1.13.2)

Category: Top Free Game
Installs: 50,000,000+

  • obtain installed software information
  • obtain geo-location information
  • obtain device information
  • obtain WiFi configuration
  • connect to the Internet

5 / 54 [Link]

Available on play store

3) Lollipop: Sweet Taste Match3    (v1.0.9)

Category: New Free App, Top Free Game, New Free Game
Installs: 100,000+
 

  • obtain geo-location information
  • obtain WiFi configuration
  • obtain device information
  • connect to the Internet

4 / 52 [Link]

Available on play store

4) Fruits Mania : Elly’s travel    (v1.1.2)

 

Category: New Free App, Top Free Game, New Free Game
Installs: 500,000+

  • obtain geo-location information
  • obtain network information
  • obtain device information
  • connect to the Internet

6 / 55 [Link]

Available on play store

 Remark (#): The status was checked on 23-August. There is no direct relation between the on-shelf status and this report.

 

2.    High risk app analysis


Please refer to "Appendix 2" [download]