Hello, everyone. A few months ago a relative received a brandless Android 4.4.2 smartphone as a present for suscribing to a journal. Once he started using it he began noticing that strange apps would install alone in the phone, and once in a few days the phone would start behaving weirdly (making calls to his contacts, opening apps randomly and writing random characters. The phone wouldn't respond to touch while that was happenning). I have read on the Internet that several users had also had malware problems with the same phone model (which html5test.com detects as a 77x while imei.info detects it as a Zora T-6). It seems that there is some kind of pre-installed malware on it, as the problems do not disappear after factory-resetting the phone. I have also tried uninstalling suspicious system apps by rooting it, which stopped the phone from installing apps alone. But it keeps making calls, opening or closing stuff itself, etc. I tried lots of aniti-viruses and they did not find any malware at all. I do not know what else to do in order to get rid of this annoying malware. Could anyone please help me?
Thanks in advance!