SHA1:
- f714f6332d55fbc883f5eca4c475c0467c469612
- c39ccad90d6b49b3a5ced28dad3100f19a469df2
A Trojan for Android mobile devices designed to download and launch malicious applications covertly.
Android.Xiny.60 is installed in the Android system catalog by other Trojans belonging to the Android.Xiny family once they have root privileges and on the condition that an SU-like utility is already present in the infected system and located on one of the following paths:
- /system/xbin/.pe;
- /system/xbin/.ls;
- /system/bin/.adin;
- /system/bin/.alpha.
Once launched, Android.Xiny.60 extracts several malicious components from its resource folder and copies them to system directories.
- /system/xbin/igpi;
- /system/lib/igpld.so;
- /system/lib/igpfix.so;
- /system/framework/igpi.jar.
Next, the Trojan launches the igpi module (Android.Xiny.61) which uses the ptrace function to inject the igpld.so executable Linux library (Android.Xiny.62) into the system processes of Google Play (com.android.vending) and Google Play Services (com.google.android.gms, co.google.android.gms.persistent) applications. Moreover, Android.Xiny.60 can inject the same library into the zygote process, although this functionality is not used in this version of the malicious application.
Once downloaded, the igpld.so module determines which process it has infected. If it is the zygote process, Android.Xiny.62 starts monitoring the launch of any new applications. If the Trojan detects a newly launched process, it injects the igpi.jar malicious library (Android.Xiny.60) into it. This library is then used to download and run additional Trojan modules.
After launching, igpi.jar starts monitoring and controlling the following events on the infected device:
- android.intent.action.BATTERY_CHANGED—change the battery charge level;
- android.intent.action.SCREEN_ON—turn on the home screen;
- android.intent.action.SCREEN_OFF—turn off the home screen;
- android.intent.action.ACTION_POWER_CONNECTED—connect the charger;
- android.intent.action.ACTION_POWER_DISCONNECTED—disconnect the charger;
- android.net.conn.CONNECTIVITY_CHANGE—change in network connection status.
When one of the above events occurs, the Trojan connects to the command and control server located at http://g.om***.com/igp/api, and loads the following information about the infected device:
- IMEI;
- IMSI;
- MAC address of the network adapter;
- OS version;
- Mobile device model;
- Current system language;
- Application package name.
In response, Android.Xiny.60 can download and launch malicious plugins that will work as part of the infected application; however, thus far, Doctor Web has not discovered any indications that plugins of this kind have been distributed yet.
