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Android.SmsSend.21076

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

Virus description added: 2017-07-30

Technical information

Malicious functions:

Sends SMS messages:

15595005292: i2mPNk1AOWWu6IO69LttHIXkg==

Gains access to the ITelephony private interface

Network activity:

Connecting to:

a####.####.com
jt####.com
s####.####.com
s####.####.com:36800
ut####.cn
ut####.cn:8080

HTTP GET requests:

jt####.com/jarfiles/jarupdate.jar

HTTP POST requests:

a####.####.com/app_logs
s####.####.com/fbplan.action
s####.####.com:36800/cfgplan.action
ut####.cn/excalibur/avalon/sdk/pay.aspx
ut####.cn:8080/excalibur/avalon/sdk/pay.aspx

Modified file system:

Creates the following files:

<Package Folder>/app_dex/utopay.jar
<Package Folder>/databases/cc.db
<Package Folder>/databases/cc.db-journal
<Package Folder>/databases/sms_db
<Package Folder>/databases/sms_db-journal
<Package Folder>/databases/ua.db
<Package Folder>/databases/ua.db-journal
<Package Folder>/databases/utopay.db-journal
<Package Folder>/databases/webview.db-journal
<Package Folder>/files/####/exchangeIdentity.json
<Package Folder>/files/####/log-20170727-074113
<Package Folder>/files/.imprint
<Package Folder>/files/bean_101.dat
<Package Folder>/files/exid.dat
<Package Folder>/files/mj.apk
<Package Folder>/files/old.jar
<Package Folder>/files/rec_101.dat
<Package Folder>/files/umeng_it.cache
<Package Folder>/files/wap_101.dat
<Package Folder>/rpc.cmd
<Package Folder>/shared_prefs/<Package>_preferences.xml
<Package Folder>/shared_prefs/<Package>_preferences.xml.bak
<Package Folder>/shared_prefs/c_sp.xml
<Package Folder>/shared_prefs/mlib.xml
<Package Folder>/shared_prefs/pluginLib.xml
<Package Folder>/shared_prefs/sdk_dc_005012.xml
<Package Folder>/shared_prefs/sdk_dc_005012.xml.bak
<Package Folder>/shared_prefs/sdk_device.xml
<Package Folder>/shared_prefs/umeng_general_config.xml
<Package Folder>/shared_prefs/umeng_general_config.xml.bak
<Package Folder>/shared_prefs/umeng_general_config.xml.bak (deleted)
<SD-Card>/.wkchannel
<SD-Card>/Android/####/.UUID

Miscellaneous:

Executes next shell scripts:

/data/data/com.snda.wifilocating/lib/libnative.so rpcx com.snda.wifilocating
getprop apps.customerservice.device
sh <Package Folder>/lib/libnative.so rpcx <Package>

Loads the following dynamic libraries:

nload

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS7Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
DES-CBC-PKCS5Padding

Contains functionality to send SMS messages automatically.

Gains access to geolocation

Gains access to network information

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

Displays its own windows over windows of other applications

Parses information from SMS messages

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.

Find out more about Dr.Web for Android

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