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Hong Kong Google Play Store’s Apps Security Risk Report (April 2014)

Hong Kong Computer Emergency Response Team (HKCERT) Coordination Centre
cooperates with the National Institute of Network and Information Security
(NINIS) 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. NINIS provides us analyzed result, and
we collate the detection result and publish security alerts to the public.

In the report of April, we have downloaded 150 apps from Play Store, where
8 apps have been identified as high risk. None of them was removed from
Play Store (on or before 28-April). 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: 150 apps
– Unable to download via the system: 50 apps
– Downloaded date: 5-April 2014
– List of the downloaded apps: “Appendix 1”
[download
]

Analysis Overview

In this analysis, 150 apps were scanned for bad behaviors. Based on the
level of security threat, the apps were divided into 2 categories: apps
with malicious and apps with suspicious behaviors. Malicious behavior
refers to apps having malicious purpose explicitly, which could cause
direct harm to systems and users’ interests. Suspicious behavior refers to
apps having behavior, which could cause direct harm to systems and users’
interests, but no malicious behavior can be explicitly identified.

This is only an extract from the full article. Please visit the HKCERT site
ast the link below to read the full version in English:

https://www.hkcert.org/my_url/en/blog/14042801?nid=218288

or in Chinese
https://www.hkcert.org/my_url/zh/blog/14042801?nid=218288

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