Automatic background off for Internet Security Apps


Hi All,

I have been using ZTE Nubia Z Mini S with Marshmallow Nubia UI V4.0 for about almost 4 months. The hardware is magnificent but just as its review says it has a poor OS.

Issue is whenever i put on the system setting for accessibility of internet security apps such as Quick Heal, McAfee or any such, after sometime it is put off automatically without my knowledge. Hence that leads to security breech and over taking of my phone such as typing my keyboard like someone is controlling it over remote control and then making calls in Skype while i am using it without any of my doing.

When i downloaded comodo antivirus, it said an app called neosafe is potentially risky and i tried to remove it but failed. This is still happening right now and making it difficult to use it with internet. When the internet is off, it reduces. is it remote control access venerability?

Can anyone tell me how to stop this inference? Going to app i tried to diable or uninstall neosafe but there isnt any button active where i can do it. and i tried by connecting it to my computer and remove there also i cant find it.