Samsung galaxy note problem

[AC Question]

After installing share it application, my phone has many errors like catstudio, measure, Guardservice has stopped, and is auto updating the android version. My phone is rooted to the last version of android which is Jellybean. Why is that? Is it virus? How to fix my phone(Samsung galaxy note)?

 

[B. Diddy]

Welcome to Android Central! That might be a big problem. Measure is often associated with other known malware like Monkey Test and Engriks. From what I've seen in these forums, that malware is very difficult to remove. From where did you install the SHAREit app? Google Play Store? Or did you download the apk file from somewhere and install it manually?

 

[Anna Marie Janiola]

There is engriks has stopped also error. My cousin install it so I don't know where did he install the app.

 

[Anna Marie Janiola]

I think he install it manually on my phone.

 

[B. Diddy]

From all that I've read, Engriks is the name of a piece of malware, not an app that you install.

 

[Anna Marie Janiola]

I mean I don't know where he install the Share It app.
Thank you for your reply. I think I need to flash the OS of my phone again to wipe all the malware.