What is a Wlan Ant. Puma?

My old Sony E Reader 2013 suddenly turned on today although it has not been used or charged for years. Since I also saw a change in the rear cover, I opened it and then this Puma Wlan Ant. Came out.
my internet on the mobile phone was gone for 3 minutes. Is important because I experience a very bad separation where the spy app was found on the laptop…

Yes,

something like that happens with a men in the middel attak like wlan spoofing.

Can you post a picture?