I am having this same problem. I have also been told that I need to flash new rom. Well I have tried this method viewtopic.php?t=54240 but problem is that sp flash tool won't work for me. I have updated and removed those drivers many many times, but no response from sp flash tools when plugging in usb. If i go to the meta mode (press volume up) during plugging in usb cable then sp flash tools will recognize it, but download will be stuck in 100% red progress bar and after minute or two i get this error: brom error status_ext_ram_exception. Any tips? I have not been able to take battery out of the phone. Could that cause problems? Is there any other way to flash new rom?

This malware is also on the BV5000 I just downloaded and installed V1.6_20160801_R16 and its "pre-loaded"

Is there any newer and "clean" firmware for the BV5000 ?