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Android.Packed.44637

Added to the Dr.Web virus database: 2019-05-06

Virus description added: 2019-05-06

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.DownLoader.363.origin

Removes app icon from the screen.

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) 1####.14.82.147:6600
TCP(HTTP/1.1) 1####.196.223.178:6700
TCP(HTTP/1.1) 1####.196.223.178:6600
TCP(HTTP/1.1) z####.heyc####.net:80
TCP(HTTP/1.1) dw.winners####.com:80
TCP(HTTP/1.1) www.web####.net:80
TCP(HTTP/1.1) 1####.14.76.72:6600
TCP(TLS/1.0) yw.suma####.com:5600
TCP(TLS/1.0) yw.suma####.com:5500
TCP(TLS/1.0) 1####.217.20.78:443

DNS requests:

a####.u####.com
dw.winners####.com
gg.suma####.com
www.web####.net
yw.suma####.com
z####.heyc####.net

HTTP GET requests:

dw.winners####.com/img/20190107/455987/720-1280.jpg
dw.winners####.com/tem/ad.html
dw.winners####.com/tem/js/WebViewJavascriptBridge.js
dw.winners####.com/tem/js/jquery-1.8.0.min.js
www.web####.net/api/ad/ws.php?action=####
www.web####.net/api/ad/ws.php?action=####&ad_key=####&show_count=####&cl...

HTTP POST requests:

a####.u####.com/app_logs
z####.heyc####.net/getlist
z####.heyc####.net/xlogin

File system changes:

Creates the following files:

/data/data/####/.edata
/data/data/####/.imprint
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/YV92X2dkdF9jb25maWc=.xml
/data/data/####/appversion.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/classes.dex
/data/data/####/classes.dve
/data/data/####/classes.jar
/data/data/####/com.SecShell.tmp3150
/data/data/####/com.SecShell.tmp3240
/data/data/####/com.SecShell.tmp3268
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/dpi
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/hid.db
/data/data/####/index
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_general_config.xml (deleted)
/data/data/####/umeng_it.cache
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromium.db-journal (deleted)
/data/media/####/.nid
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/sys.lock

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh
cat /sys/class/android_usb/android0/idProduct
cat /sys/class/android_usb/android0/idVendor
getprop
ls -l /dev
ls -l /dev/block
ls -l /dev/block/vold
ls -l /dev/bus
ls -l /dev/bus/usb
ls -l /dev/bus/usb/001
ls -l /dev/com.android.settings.daemon
ls -l /dev/cpuctl
ls -l /dev/cpuctl/apps
ls -l /dev/cpuctl/apps/bg_non_interactive
ls -l /dev/graphics
ls -l /dev/input
ls -l /dev/log
ls -l /dev/pts
ls -l /dev/snd
ls -l /dev/socket
ps

Loads the following dynamic libraries:

SecShell

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

Uses special library to hide executable bytecode.

Gets information about network.

Gets information about phone status (number, IMEI, etc.).

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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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