China is the birth place for most of malicious Android apps, TrendMicro says. Android OS is also becoming more and more popular in China. Access to the Google Android Market has been intermittent since 2009. The inconvenience in accessing the Android Market can be considered a big factor in the Chinese users’ preference in terms of where to download their Android applications. The biggest malware threat to Android users is probably the rogue application model. Attackers pirate a legit program and add some malicious code to it then release it into the market.
Source: https://thehackernews.com/2011/11/china-is-birth-place-for-most-of.html