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Android.Packed.25821

Added to the Dr.Web virus database: 2017-07-30

Virus description added: 2017-07-30

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Triada.273.origin

Intercepts incoming SMS messages and terminates the process of their transmission to handlers of other applications

Network activity:

Connecting to:

i####.####.cn
n####.####.com:10091
w####.####.cn

HTTP POST requests:

i####.####.cn/iplookup/iplookup.php?format=####
n####.####.com:10091/opaService/link
w####.####.cn/ip.jsp

Modified file system:

Creates the following files:

<Package Folder>/app_kload_odex/kload.apk
<Package Folder>/app_kload_odex/kload.inf
<Package Folder>/app_res_out/JRealRes.apk
<Package Folder>/app_temp/id
<Package Folder>/files/droidinfotemp.txt
<Package Folder>/shared_prefs/cuf_config.xml
<Package Folder>/shared_prefs/database.xml
<SD-Card>/.hand/developkeyded8d30d-257d-45b9-96bc-c16d92f95410.tmp
<SD-Card>/.hand/lastacc73c11520-8177-4977-b3f2-2e77bfa55a4b.tmp
<SD-Card>/.uct/uuid38850a13c-809c-49ac-9e13-ae344b0ebab2.tmp
<SD-Card>/Android/####/.nomedia
<SD-Card>/mmt/####/droidinfo
<SD-Card>/mmt/####/droidinfo-journal
<SD-Card>/mmt/####/test.dat36a3801a-e9c8-4541-bbdf-5bd96d8c66dc.tmp
<SD-Card>/mmt/####/test.dat892746d7-48fc-4628-b1c6-507aa62babf0.tmp
<SD-Card>/mmt/####/test.datc54b193b-89dd-48ce-945d-57d100736eb9.tmp
<SD-Card>/sdtmp/id1
<SD-Card>/sdtmp/id2
<SD-Card>/sdtmp/id2efe5c443-571b-408a-bb53-1b031d65f168.tmp
<SD-Card>/tmpsd11012/test.dat063b25b7-7019-4fdd-83f0-e3197f0ee260.tmp
<SD-Card>/tmpsd11012/test.dat47c8239a-7038-48c4-89b5-e0df111b108e.tmp

Miscellaneous:

Executes next shell scripts:

/system/bin/.nbwayxwzt
cat /proc/version
cat /sys/class/net/wlan0/address
conbb od2gf04pd9
getprop
getprop ro.board.platform
getprop ro.product.cpu.abi
getprop ro.serialno
getprop ro.yunos.build.version
ls -l /system/bin/su

Loads the following dynamic libraries:

helper

Uses the following algorithms to encrypt data:

DES

Uses the following algorithms to decrypt data:

DES

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

Gains access to information about running applications

Adds tasks to the system scheduler

Displays its own windows over windows of other applications

Gains access to information about sent/received SMS messages

Curing recommendations

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.

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