HKCert
Security Blog

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

Release Date: 29 / 02 / 2016
Last Update: 18 / 03 / 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 February, we have downloaded 171 apps from Play Store, where 5 apps have been identified as high risk. 1 of them were removed from Play Store (on or before 1-Mar). 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: 171 apps
  • Unable to download via the system: 29 apps
  • Downloaded date: 5-February 2016
  • List of the downloaded apps: "Appendix 1" [download]

 

Analysis Overview

 

In this analysis, 171 apps were scanned for bad behaviors. 5 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) K3皇家梭哈(Showhand)   (v3.5.1)

Category: New Free Game

Installs: 10,000 - 50,000
  • obtain SIM operator name
  • obtain SIM serial number
  • obtain SIM status
  • obtain geo-location information
  • obtain WiFi configuration
  • obtain Bluetooth infomation
  • obtain device information

6 / 55 [Link]

Available on play store

2) 天堂戰記 - 日系 3D ARPG 猴年春節特別版   (v0.8.123)

Category: New Free App
Installs: 10,000 - 50,000

  • obtain SIM status
  • obtain geo-location information
  • obtain WiFi configuration
  • obtain device information
  • read phone number
  • connect to the Internet

3 / 55 [Link]

Available on play store

3) 億次元刀   (v1.08)

Category: New Free Game
Installs: 5,000+

  • obtain SIM operator name
  • obtain SIM serial number
  • obtain SIM status
  • obtain geo-location information
  • obtain WiFi configuration
  • connect to the Internet
  • send out phone information

0 / 55 [Link]

Not available on play store#

4) Lucky Patcher   (v3.0)

Category: New Free Game
Installs: 10,000+

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

1 / 57 [Link]

Available on play store

5) GoGoVan 客貨車 - Call Van App   (v5.3.1)

Category: Top Free App
Installs: 500,000+

  • obtain SIM status
  • obtain geo-location information
  • obtain WiFi configuration
  • obtain network information
  • send out phone information.

1 / 54 [Link]

Available on play store

Remark (#): The status was checked on 1-Mar. There is no direct relation between the on-shelf status and this report.

 

2. High risk app analysis

 

Please refer to "Appendix 2" [download]