Help on SystemUI.apk - Android Q&A, Help & Troubleshooting

Hi there and hello everyone!
I am new to the forum and a noob when it comes to Android development.
I am a little bit stuck regarding my researches and hopefully will get a little help here.
As many people know, a lot (nearly all) of chinese devices carry malware in them: So with the Doogee X5max.
I have identified four threads on the phone and was able to get rid off three of them in the meantime.
The last one that is really struggeling me is located within the SystemUI.apk (according to Dr Web light).
Now my questions:
1) As far as I know, SystemUI.apk only holds style information regarding the user interface of the device.
How can malware / trojan / virus, etc. do its job from within the SystemUI.apk? Is there any executable code in it?
2) Can I just decompile a SystemUI.apk from let's say AOSP and recompile it using the framework stored on my phone and then install it?
3) Does anyone have experience in removing malware that resides within the firmware of a device and did NOT come from the outside, e.g. via sideloads?
Any help would be appreciated!
Regards
Markus

deomaki said:
Hi there and hello everyone!
I am new to the forum and a noob when it comes to Android development.
I am a little bit stuck regarding my researches and hopefully will get a little help here.
As many people know, a lot (nearly all) of chinese devices carry malware in them: So with the Doogee X5max.
I have identified four threads on the phone and was able to get rid off three of them in the meantime.
The last one that is really struggeling me is located within the SystemUI.apk (according to Dr Web light).
Now my questions:
1) As far as I know, SystemUI.apk only holds style information regarding the user interface of the device.
How can malware / trojan / virus, etc. do its job from within the SystemUI.apk? Is there any executable code in it?
2) Can I just decompile a SystemUI.apk from let's say AOSP and recompile it using the framework stored on my phone and then install it?
3) Does anyone have experience in removing malware that resides within the firmware of a device and did NOT come from the outside, e.g. via sideloads?
Any help would be appreciated!
Regards
Markus
Click to expand...
Click to collapse
Hello, as far as i know if systemui have specific permission/code then virus can use systemui for abnormal use.

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Logic says go to the Android Development Hacking / Chef Central and the other similar forum on XDA .
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