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Android.DownLoader.3827

Added to the Dr.Web virus database: 2018-09-25

Virus description added: 2018-09-25

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.RemoteCode.41.origin
Android.Xiny.20

Downloads the following detected threats from the Web:

Android.Xiny.20

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) 1####.75.90.129:80
TCP(HTTP/1.1) v####.6####.com:80
TCP(HTTP/1.1) ob.nic####.cn:80
TCP(HTTP/1.1) z.no####.net:80
TCP(HTTP/1.1) do.soi####.com:80
TCP(HTTP/1.1) www.i####.org:80
TCP(HTTP/1.1) m.bj####.com:80
TCP(HTTP/1.1) m.jlru####.com:80
TCP(HTTP/1.1) ip.ch####.com:80
TCP(HTTP/1.1) sdk.91a####.com:80
TCP(HTTP/1.1) m1.laogeda####.com:80
TCP(HTTP/1.1) cd.kw####.com:80
TCP(HTTP/1.1) w####.5####.com:80
TCP(TLS/1.0) hotfix####.oss-cn-####.aliy####.com:443
TCP(TLS/1.0) api.nic####.cn:443
TCP(TLS/1.0) z.c####.com:443
TCP(TLS/1.0) and####.cli####.go####.com:443
TCP(TLS/1.0) gm.mm####.com:443
TCP(TLS/1.0) c.c####.com:443
TCP(TLS/1.0) aliyuns####.oss-cn-####.aliy####.com:443
TCP(TLS/1.0) aliyuno####.oss-cn-####.aliy####.com:443
TCP(TLS/1.0) hm.b####.com:443
TCP(TLS/1.0) 1####.217.20.110:443

DNS requests:

aliyuno####.oss-cn-####.aliy####.com
aliyuns####.oss-cn-####.aliy####.com
aliyuns####.oss-cn-####.aliy####.com
and####.cli####.go####.com
api.nic####.cn
c####.mm####.com
c.c####.com
cd.kw####.com
do.soi####.com
hm.b####.com
hotfix####.oss-cn-####.aliy####.com
im####.nic####.cn
ip.ch####.com
m.bj####.com
m.jlru####.com
m1.laogeda####.com
mt####.go####.com
ob.nic####.cn
s22.c####.com
sdk.91a####.com
v####.6####.com
w####.5####.com
w####.5####.com
www.i####.org
z.no####.net
z1.c####.com

HTTP GET requests:

do.soi####.com/201809/wwf.jar
ip.ch####.com/getip.aspx
m.bj####.com/Dk6c2Fv1ybSs.php?o=####&i=####&s=####&ad=####
m.bj####.com/chuangyeqibu/08/4004.html
m.jlru####.com/ZDNpKVauaBbK.php?o=####&i=####&s=####&ad=####
m.jlru####.com/zhuangxiuzhishi/25/7409.html
m1.laogeda####.com/ads/admaster24.php?o=####
m1.laogeda####.com/ads/admaster240.php?o=####
m1.laogeda####.com/templets/tui/js/jquery-1.8.3.min.js
ob.nic####.cn/huodong/Production/20180809/node_modules/fastclick/lib/fas...
ob.nic####.cn/huodong/Production/20180809/pkg/Common.js
ob.nic####.cn/huodong/Production/20180809/pkg/Vendor.js
ob.nic####.cn/huodong/Production/20180809/projects/page/TurntableLottery...
sdk.91a####.com/static/20180829152952mod.enc

HTTP POST requests:

cd.kw####.com/c
ob.nic####.cn/niceapi/getactivity
ob.nic####.cn/niceapi/getactivitybuoy
ob.nic####.cn/niceapi/orderdatainfo
sdk.91a####.com/api/DeviceReport.ashx
v####.6####.com/0/ca477c3b25914a5f821296be846eca73.html
v####.6####.com/18/a41844eff5ff4a0a96c9603142acfcf6.html
v####.6####.com/20/8c10c5184b36491eb6ed32bdbafb1eb4.html
v####.6####.com/api/CheckModule.ashx
v####.6####.com/api/GetLockAppOpenTask.ashx
v####.6####.com/api/GetModuleConfig.ashx
v####.6####.com/api/GetPkNameList.ashx
v####.6####.com/api/ReportAppLog.ashx
w####.5####.com/0/76179c31f5d04e21bcf7fee1debf1df1.html
www.i####.org/two?requestId=####&g=####
z.no####.net/m/a/t

Modified file system:

Creates the following files:

/data/data/####/6qr5lYg.jar
/data/data/####/CaF9JPGIgP.jar
/data/data/####/JSON.xml
/data/data/####/S4AleBv.jar
/data/data/####/W_Key.xml
/data/data/####/base.js
/data/data/####/com.yllmb.zydq_preferences.xml
/data/data/####/com_yllmb_zydq.txt
/data/data/####/common.js
/data/data/####/countClickIP.xml
/data/data/####/cpro.baidu.com.js
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/downloadswc
/data/data/####/downloadswc-journal
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/index
/data/data/####/m.baidu.com.js
/data/data/####/m.chinebuy.com.js
/data/data/####/max_pref.xml
/data/data/####/mod.dec
/data/data/####/mod.dex
/data/data/####/mod.enc
/data/data/####/phan.xml
/data/data/####/st.xml
/data/data/####/start.js
/data/data/####/vtpJtBrOtA.jar
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/media/####/5.0wwf.jar.u
/data/media/####/com_yllmb_zydq.txt
/data/media/####/id.tmp
/data/media/####/restime.dat

Miscellaneous:

Uses the following algorithms to encrypt data:

AES-CBC-PKCS7Padding
DES-CBC-PKCS5Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
DES
DES-CBC-PKCS5Padding

Gains access to geolocation.

Gains access to network information.

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

Gains access to information about installed applications.

Gains access to information about running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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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