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Android.Packed.21134

Added to the Dr.Web virus database: 2017-05-02

Virus description added:

Technical information

Malicious functions:
Executes code of the following detected threats:
  • Android.SkyMobi.6.origin
Network activity:
Connecting to:
  • 1####.####.181:83
  • and####.####.com
  • c####.####.com
  • w####.####.com
  • 1####.####.181
  • and####.####.com:8077
HTTP GET requests:
  • 1####.####.181:83/InterFace/ServerInterFace.aspx?code=####
  • 1####.####.181/Interface/olt.aspx?item=####&package=####&zmid=####&zyfid...
  • 1####.####.181/InterFace/ServerInterFace.aspx?code=####
  • w####.####.com/r/p/index.jsp?vt=####&cm=####
HTTP POST requests:
  • c####.####.com/uploadCrashLogInfo.do
  • and####.####.com/record-plat/seq/query.do
  • and####.####.com:8077/android/sms/netpay/prefetch.do
  • c####.####.com/client/api/uploadStartUpInfo.do
Modified file system:
Creates the following files:
  • /data/data/####/shared_prefs/CrashTimes.xml
  • /data/data/####/.cache/version
  • /data/data/####/app_workbench41824/apk.zip
  • /data/data/####/shared_prefs/InitTag.xml
  • /data/data/####/shared_prefs/olt.xml.bak
  • /data/data/####/files/sec.lck
  • /data/data/####/shared_prefs/olt.xml
  • /data/data/####/app_workbench69680/apk.zip
  • /data/data/####/shared_prefs/BOOT_SMS_SENT_TIME.xml
  • /data/data/####/app_workbench75512/apk.zip
  • /data/data/####/files/classes.dex
  • /data/data/####/app_workbench36298/apk.zip
  • /data/data/####/app_workbench47656/apk.zip
  • /data/data/####/databases/Data_sync.db-journal
  • /data/data/####/shared_prefs/ACCOUNT_SYSTEM_ACCOUNT_INFO.xml
  • /sdcard/Android/data/com.skymobi.pay.newsdk/plugins/com.skymobi.pay.plugin.smspay.data
  • /data/data/####/shared_prefs/BOOT_SMS_INFO.xml
  • /sdcard/Android/data/com.skymobi.pay.newsdk/user.sys
  • /data/data/####/files/libnesec.so
  • /data/data/####/shared_prefs/plugin_record_app_info.xml
  • /sdcard/Android/data/com.skymobi.pay.newsdk/plugins/com.skymobi.pay.plugin.main.data
  • /sdcard/Android/data/com.skymobi.pay.newsdk/plugins/com.skymobi.pay.plugin.recordupload.data
  • /data/data/####/app_workbench75206/apk.zip
  • /data/data/####/shared_prefs/pref_recomm.xml
Miscellaneous:
Executes next shell scripts:
  • chmod 666 /storage/emulated/0/Android/data/com.skymobi.pay.newsdk/plugins/com.skymobi.pay.plugin.smspay.data
  • /system/bin/dexopt --dex 27 55 40 90372 /data/data/####/app_workbench75512/apk.zip 1251699234 -610927233 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.jar
  • /system/bin/dexopt --dex 27 56 40 543692 /data/data/####/app_workbench75512/apk.zip 1251699235 -289780750 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.ja
  • /system/bin/dexopt --dex 27 43 40 125612 /data/data/####/app_workbench41824/apk.zip 1251699226 -1981879824 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.j
  • logcat -d -v threadtime
  • /system/bin/dexopt --dex 27 54 40 125612 /data/data/####/app_workbench75512/apk.zip 1251699234 -1981879824 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.j
  • chmod 666 /storage/emulated/0/Android/data/com.skymobi.pay.newsdk/plugins/com.skymobi.pay.plugin.main.data
  • /system/bin/dexopt --dex 27 49 40 543692 /data/data/####/app_workbench36298/apk.zip 1251699227 -289780750 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.ja
  • /system/bin/dexopt --dex 27 57 40 543692 /data/data/####/app_workbench69680/apk.zip 1251699222 -289780750 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.ja
  • /system/bin/dexopt --dex 27 44 40 90372 /data/data/####/app_workbench47656/apk.zip 1251699238 -610927233 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.jar
  • /system/bin/dexopt --dex 27 44 40 90372 /data/data/####/app_workbench36298/apk.zip 1251699227 -610927233 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.jar
  • /system/bin/dexopt --dex 27 43 40 125612 /data/data/####/app_workbench47656/apk.zip 1251699238 -1981879824 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.j
  • /system/bin/dexopt --dex 27 45 40 543692 /data/data/####/app_workbench47656/apk.zip 1251699238 -289780750 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.ja
  • /system/bin/dexopt --dex 27 55 40 125612 /data/data/####/app_workbench75206/apk.zip 1251699222 -1981879824 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.j
  • chmod 666 /storage/emulated/0/Android/data/com.skymobi.pay.newsdk/plugins/com.skymobi.pay.plugin.recordupload.data
  • /system/bin/dexopt --dex 27 56 40 90372 /data/data/####/app_workbench69680/apk.zip 1251699222 -610927233 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.jar
Uses special library to hide executable bytecode.
Contains functionality to send SMS messages automatically.

Curing recommendations


Android

  1. 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.
  2. 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.

Find out more about Dr.Web for Android