Adware.Gexin.440

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) reso####.msg.xi####.net:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) 1####.56.197.17:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) 4####.95.41.254:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) sni.c####.q####.####.net:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) o####.map.b####.com:443
TCP(TLS/1.0) loc.map.b####.com:443
TCP(TLS/1.0) regi####.xm####.xi####.com:443
TCP c####.g####.ig####.com:5226
UDP 1####.57.211.132:96
TCP sdk.o####.t####.####.com:5224
TCP 47.74.1####.158:5222
TCP 4####.62.94.2:443

DNS requests:

7j####.c####.z0.####.com
and####.b####.qq.com
api.map.b####.com
c####.g####.ig####.com
c-h####.g####.com
loc.map.b####.com
o####.map.b####.com
pub-####.qin####.com
regi####.xm####.xi####.com
reso####.msg.xi####.net
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

reso####.msg.xi####.net/gslb/?ver=4.0&type=wap&conpt=dvidpodv >>4>>4>>4...
sni.c####.q####.####.net/config/hz-hzv3.conf
sni.c####.q####.####.net/tdata_MkX219
sni.c####.q####.####.net/tdata_iGj879
t####.c####.q####.####.com/tdata_EDT356

HTTP POST requests:

and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/-0721-141926-crash.log
/data/data/####/29a2445e3b24
/data/data/####/CustomIndex
/data/data/####/DVDirectory.cfg
/data/data/####/DVHotMap.cfg
/data/data/####/DVHotcity.cfg
/data/data/####/DVIndoor.cfg
/data/data/####/DVSDirectory.cfg
/data/data/####/DVVersion.cfg
/data/data/####/LBSPhone.xml
/data/data/####/ResPackIndoorMap.rs
/data/data/####/XMPushServiceConfig.xml
/data/data/####/authStatus_com.lbs.lbspos.xml
/data/data/####/authStatus_com.lbs.lbspos;remote.xml
/data/data/####/baseindoormap.sty
/data/data/####/bugly_db_legu-journal
/data/data/####/bus.sty
/data/data/####/car.sty
/data/data/####/com.lbs.lbspos;pushservice
/data/data/####/com.lbs.lbspos_preferences.xml
/data/data/####/cycle.sty
/data/data/####/firll.dat
/data/data/####/gal.db
/data/data/####/gal.db-journal
/data/data/####/gdaemon_20161017
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/getui_sp.xml
/data/data/####/gx_sp.xml
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/lbsconfig.db
/data/data/####/lbsconfig.db-journal
/data/data/####/libcuid.so
/data/data/####/libnfix.so
/data/data/####/libshella-2.8.so
/data/data/####/libufix.so
/data/data/####/local_crash_lock
/data/data/####/map.rs
/data/data/####/map.sty
/data/data/####/map_pref.xml
/data/data/####/mipush.xml
/data/data/####/mipush_account.xml
/data/data/####/mipush_extra.xml
/data/data/####/mipush_region
/data/data/####/mipush_region.lock
/data/data/####/mix.dex
/data/data/####/native_record_lock
/data/data/####/ofl.config
/data/data/####/ofl_location.db
/data/data/####/ofl_location.db-journal
/data/data/####/ofl_statistics.db
/data/data/####/ofl_statistics.db-journal
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/reduct.rs
/data/data/####/reduct.sty
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tdata_MkX219
/data/data/####/tdata_MkX219.jar
/data/data/####/tdata_iGj879
/data/data/####/tdata_iGj879.jar
/data/data/####/tiny_data.data
/data/data/####/tiny_data.lock
/data/data/####/traffic.rs
/data/data/####/traffic.sty
/data/data/####/ver.dat
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/DTTempdat.dat
/data/media/####/DTTempdat.idx
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.lbs.lbspos.bin
/data/media/####/com.lbs.lbspos.db
/data/media/####/conlts.dat
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_MkX219
/data/media/####/tdata_iGj879
/data/media/####/test.0
/data/media/####/test.log
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.dat

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop ro.aa.romver
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.build.fingerprint
/system/bin/sh -c getprop ro.build.nubia.rom.name
/system/bin/sh -c getprop ro.build.rom.id
/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
/system/bin/sh -c getprop ro.build.version.emui
/system/bin/sh -c getprop ro.build.version.opporom
/system/bin/sh -c getprop ro.gn.gnromvernumber
/system/bin/sh -c getprop ro.lenovo.series
/system/bin/sh -c getprop ro.lewa.version
/system/bin/sh -c getprop ro.meizu.product.model
/system/bin/sh -c getprop ro.miui.ui.version.name
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.DemoPushService 24391 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.8.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.rom.id
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime
mount

Loads the following dynamic libraries:

BaiduMapSDK_base_v4_5_2
BaiduMapSDK_map_v4_5_2
Bugly
getuiext2
libnfix
libshella-2.8
libufix
locSDK7a
nfix
ufix

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-GCM-NoPadding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

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 accounts (Google, Facebook, etc.) registered on the device.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

Gains access to information about sent/received SMS messages.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

Free trial