Toast message with Chinese characters, is it a virus?
Based on the information given, it's indeed caused by the latest update (9 July 2016) of ES File Explorer. From some of recent reviews,


This new version has a new issues, whenever I open the ES file explorer it's showing some errors in Chinese language. It's affecting other apps too... (link)

Latest was a series of Chinese toast notifications being displayed even when not using the App. (link)

new problem raised while using app some chinese lang messeges display which is distracted the main usage (link)

Latest update now causing messages in Chinese to popup near the bottom of the screen. (link)

and many more...



I don't think it's a virus. It supposed to be kind of &quot;helpful&quot; messages to the user (who can read it).