Evercoss Genpro X Pro S50 removing malware Android.Downloader.4930 /system/lib/libcheckperlib.so

 

Requirement:

• rooted android or temporary root using mtk-su create by Diplomatic
• pc with adb or Termux

These are steps to remove malware Android.Downloader.4930 /system/lib/libcheckperlib.so using Termux created by Grey Tshirts:

1. Create these bash script and save it as s50_patch2021.sh
   #!/system/bin/sh

FILE="/system/lib/libcheckperlib.so"

echo "checking $FILE"

if [ -f $FILE ]; then
 echo "File $FILE exists."
 echo "Try remount system rw."
 /system/bin/mount -o rw,remount /system
 echo "Backing up $FILE."
 /system/bin/mkdir /sdcard/dedetok
 /system/bin/cp $FILE /sdcard/dedetok
 echo "Removing $FILE"
 /system/bin/rm $FILE
 echo "Remount system ro"
 /system/bin/mount -o ro,remount /system
 echo "Done, reboot your Evercoss S50"
else
 echo "File $FILE does not exist."
fi
2. Or you can download it from this site. Open Termux and type
   $ wget http://garasiku.my.id/folder/S50_patch2021.sh.txt (DEAD LINK)
3. rename it
   $ mv ./S50_patch2021.sh.txt ./S50_patch2021.sh
4. change permission
   $ chmod 744 ./S50_patch2021.sh
5. run mtk-su and run the cript
   # ./S50_patch2021.sh
6. reboot your phone
   
   

Don't forget to run your antivirus after reboot your phone. android is not save operating system.

XDA Forum https://xdaforums.com/t/solved-how-to-remove-android-downloader-4930-and-android-syringe-ad-system-application-on-evercoss-genpro-x-pro-s50-mt6735.4208933/