Android.Hidden.5023

Malicious functions:

Removes its shortcut from the home screen.

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

DNS requests:

Modified file system:

Creates the following files:

Miscellaneous:

Executes next shell scripts:

<Package Folder>/helper <Package>/com.yyh.service.HostMonitor
app_process /system/bin com.android.commands.am.Am startservice --user 0 -n <Package>/com.yyh.service.HostMonitor
chmod 777 <Package Folder>/helper
dd if=<Package Folder>/lib/libhelper.so of=<Package Folder>/helper
sh

Loads the following dynamic libraries:

Uses the following algorithms to encrypt data:

Uses the following algorithms to decrypt data:

Uses administrator priveleges.

Gains access to geolocation.

Gains access to telephone information (number, imei, etc.).

Gains access to information about active device administrators.

Displays its own windows over windows of other applications.

Android

If the mobile device is operating normally, download and install Dr.Web for Android Light. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
- Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
- Once you have activated safe mode, install the Dr.Web для Android Light onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
- Switch off your device and turn it on as normal.