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Android.Packed.21565

Added to the Dr.Web virus database: 2017-05-16

Virus description added:

Technical information

Malicious functions:
Executes code of the following detected threats:
  • Android.HiddenAds.37
  • Android.Exploit.12
Network activity:
Connecting to:
  • kv####.com
HTTP GET requests:
  • kv####.com/krt.do?result=####&model=####&count=####&hdware=####&display=...
Modified file system:
Creates the following files:
  • /data/data/####/files/.z/r6
  • /data/data/####/files/.z/r4
  • /data/data/####/files/.z/r5
  • /data/data/####/files/.z/r2
  • /data/data/####/files/.z/r3
  • /data/data/####/files/.z/r0
  • /data/data/####/files/.z/r1
  • /data/data/####/files/.data/unzfile/busybox
  • /data/data/####/files/.data/unzfile/AndroidSystemPlug2.apk
  • /data/data/####/files/.z/r8
  • /data/data/####/files/.data/unzfile/sprot
  • /data/data/####/files/.data/r.jar
  • /data/data/####/files/schema
  • /data/data/####/files/.data/gfhadex.jar
  • /data/data/####/files/.z/busybox
  • /data/data/####/files/.sh/r.sh
  • /data/data/####/files/.data/unzfile/ir
  • /data/data/####/files/.data/zfile.zip
  • /data/data/####/files/.z/su2
  • /data/data/####/files/.data/unzfile/NgpMain1.5.7_C002_201701111814.apk
  • /data/data/####/files/.data/unzfile/dg
  • /data/data/####/files/a.zip
  • /data/data/####/shared_prefs/store.xml
  • /data/data/####/shared_prefs/####.xml
  • /data/data/####/files/.data/unzfile/pet
  • /data/data/####/files/.data/unzfile/chattr
  • /data/data/####/files/.data/unzfile/supolicy
  • /data/data/####/files/.z/killall
Sets the 'executable' attribute to the following files:
  • /data/data/####/files/.data/unzfile/dg
  • /data/data/####/files/schema
  • /data/data/####/files/.data/gfhadex.jar
  • /data/data/####/files/.data/unzfile/supolicy
  • /data/data/####/files/.data/unzfile/AndroidSystemPlug2.apk
  • /data/data/####/files/.data/unzfile/pet
  • /data/data/####/files/.data/unzfile/ir
  • /data/data/####/files/.data/zfile.zip
  • /data/data/####/files/.data/unzfile/busybox
  • /data/data/####/files/.data/unzfile/sprot
  • /data/data/####/files/.data/unzfile/NgpMain1.5.7_C002_201701111814.apk
  • /data/data/####/files/.data/unzfile/chattr
  • /data/data/####/files/.data/r.jar
Miscellaneous:
Executes next shell scripts:
  • /data/data/####/files/.z/r2
  • /data/data/####/files/.z/r3
  • chmod 777 /data/data/####/files/.data/unzfile/dg
  • /data/data/####/files/.z/su2 f0h5zguZ9aJXbCZExMaN2kDhh6V0Uw== /system/bin/sh /data/data/####/files/.sh/r.sh
  • chmod 777 /data/data/####/files/.data/unzfile/sprot
  • /system/bin/dexopt --dex 27 49 40 36264 /data/data/####/files/.data/gfhadex.jar 1220967907 -63691114 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.jar /system/framework/fr
  • /data/data/####/files/.z/su2 HygZRm2IHTKWpp7Hll/sS0uY66xdcw== /system/bin/sh /data/data/####/files/.sh/r.sh
  • /data/data/####/files/.z/r8
  • sh /data/data/####/files/.z/su2 f0h5zguZ9aJXbCZExMaN2kDhh6V0Uw== /system/bin/sh /data/data/####/files/.sh/r.sh
  • sh /data/data/####/files/.z/r3 -c /data/data/####/files/.sh/r.sh
  • /data/data/####/files/.z/r1 -auto
  • /data/data/####/files/.z/r3 -c /data/data/####/files/.sh/r.sh
  • sh /data/data/####/files/.z/su2 HygZRm2IHTKWpp7Hll/sS0uY66xdcw== /system/bin/sh /data/data/####/files/.sh/r.sh
  • chmod 777 /data/data/####/files/.data/unzfile/pet
  • sh /data/data/####/files/.z/r5 /system/bin/sh
  • /data/data/####/files/.z/r6 /system/bin/sh
  • sh /data/data/####/files/.z/r1 -auto
  • /data/data/####/files/.z/su2 al1s7jBFNtn9faBmC0Jb9A9Ns1GZSg== /system/bin/sh /data/data/####/files/.sh/r.sh
  • sh /data/data/####/files/.z/r4 -c /data/data/####/files/.sh/r.sh
  • chmod 777 /data/data/####/files/.data/unzfile/busybox
  • chmod 777 /data/data/####/files/.data
  • sh /data/data/####/files/.z/r8
  • /data/data/####/files/.z/r0 -c /data/data/####/files/.sh/r.sh
  • sh /data/data/####/files/.z/r4 PFMMehxvMFk2VSFN8Aw8XGXh91UNiESr/iPn2mHZOg== 3u5ydeZkuIN7B1MIi0sjkwufUjbm /system/bin/sh
  • sh /data/data/####/files/.z/r2
  • sh /data/data/####/files/.z/r3
  • chmod 777 /data/data/####/files/.data/unzfile/ir
  • chmod 755 /data/data/####/files/schema
  • sh /data/data/####/files/.z/r0 -c /data/data/####/files/.sh/r.sh
  • /data/data/####/files/.z/r2 -c /data/data/####/files/.sh/r.sh
  • chmod 777 /data/data/####/files/.data/unzfile/NgpMain1.5.7_C002_201701111814.apk
  • /data/data/####/files/.z/r5 /system/bin/sh
  • /data/data/####/files/.z/r1 -C '/data/data/####/files/.sh/r.sh'
  • chmod 777 /data/data/####/files/.data/unzfile
  • chmod 755 /data/data/####/files/.data/gfhadex.jar
  • /system/bin/dexopt --dex 27 46 40 63648 /data/data/####/files/.data/r.jar 1225954882 -1158050051 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.jar /system/framework/framew
  • /data/data/####/files/.z/r4 -c /data/data/####/files/.sh/r.sh
  • /system/bin/dexopt --dex 27 40 40 81964 /data/data/####/files/a.zip 1244369701 1998430201 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.jar /system/framework/framework.jar
  • sh /data/data/####/files/.z/r2 -c /data/data/####/files/.sh/r.sh
  • sh /data/data/####/files/.z/r1 -C '/data/data/####/files/.sh/r.sh'
  • chmod 777 /data/data/####/files/.data/unzfile/supolicy
  • chmod 777 /data/data/####/files/.data/unzfile/chattr
  • sh /data/data/####/files/.z/su2 al1s7jBFNtn9faBmC0Jb9A9Ns1GZSg== /system/bin/sh /data/data/####/files/.sh/r.sh
  • /data/data/####/files/.z/r4 PFMMehxvMFk2VSFN8Aw8XGXh91UNiESr/iPn2mHZOg== 3u5ydeZkuIN7B1MIi0sjkwufUjbm /system/bin/sh
  • chmod 777 /data/data/####/files/.data/unzfile/AndroidSystemPlug2.apk
  • sh /data/data/####/files/.z/r6 /system/bin/sh
  • chmod 777 /data/data/####/files/.sh/r.sh
  • sh /data/data/####/files/.z/r1 /data/data/####/files/.sh/r.sh
  • chmod 777 /data/data/####/files/.sh
  • /data/data/####/files/.z/r1 /data/data/####/files/.sh/r.sh
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.

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