Adware.Gexin.642

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) a####.u####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.net:80
TCP(HTTP/1.1) a.appj####.com:80
TCP(HTTP/1.1) 1####.251.204.195:80
TCP(HTTP/1.1) loc.map.b####.com: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 c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.u####.com
a.appj####.com
api.map.b####.com
boo####.haoh####.cn
c####.g####.ig####.com
c-h####.g####.com
int.d####.s####.####.cn
loc.map.b####.com
o####.map.b####.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

sni.c####.q####.####.net//pubres/picture/show_img/zt_update1.jpg
sni.c####.q####.####.net/config/hz-hzv3.conf
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000051535/1100005153...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000073455/1100007345...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000075867/1100007586...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000080075/1100008007...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000081520/1100008152...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000086540/1100008654...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000091680/1100009168...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000091960/1100009196...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000092043/1100009204...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000092147/1100009214...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000107307/1100010730...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000112120/1100011212...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000114475/1100011447...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000116608/1100011660...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000116685/1100011668...
sni.c####.q####.####.net/cppartner/1x1/11x0/110x0/11000116726/1100011672...
sni.c####.q####.####.net/pubres/picture/show_img/zt_update1.jpg
sni.c####.q####.####.net/tdata_SzD730
sni.c####.q####.####.net/tdata_ZCi456
t####.c####.q####.####.com/tdata_EDT356
t####.c####.q####.####.net/pubres/picture/LoadingPage/-82563436292261058...

HTTP POST requests:

a####.u####.com/app_logs
a.appj####.com/ad-service/ad/mark
c-h####.g####.com/api.php?format=####&t=####
loc.map.b####.com/offline_loc
loc.map.b####.com/sdk.php
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/.log.lock
/data/data/####/.log.ls
/data/data/####/4ab1b9b4ee12
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/authStatus_com.mfdzsc;remote.xml
/data/data/####/com.mfdzsc_preferences.xml
/data/data/####/conf_sp_name.xml
/data/data/####/firll.dat
/data/data/####/gal.db
/data/data/####/gal.db-journal
/data/data/####/gdaemon_20161017
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/ishugui.db-journal
/data/data/####/ishugui.shareInfo.xml
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/libcuid.so
/data/data/####/libjiagu.so
/data/data/####/mobclick_agent_cached_com.mfdzsc1010501
/data/data/####/mobclick_agent_online_setting_com.mfdzsc.xml
/data/data/####/msp.db
/data/data/####/msp.db-journal
/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/####/run.pid
/data/data/####/tdata_SzD730
/data/data/####/tdata_SzD730.jar
/data/data/####/tdata_ZCi456
/data/data/####/tdata_ZCi456.jar
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/webview.db-journal
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/10h1cdo5h00v3hkcxtj6f16zw
/data/media/####/11s0lm8p640o2njm30u7ppwie
/data/media/####/1igmgxepsmerfh5hj18rru36l
/data/media/####/1ybi9zj62ult78vsyshhy5c2p
/data/media/####/2798172.kf
/data/media/####/2mnc9z4gvy4xhvpkfvse7kfxp
/data/media/####/2ud13drlp3ljtozaeo5y1pkim
/data/media/####/31toxe8y32q49x4prj24c3n6r
/data/media/####/3402992.kf
/data/media/####/3454040.kf
/data/media/####/3654986.kf
/data/media/####/3764238.kf
/data/media/####/3mpobve7ziab9317lwbnu3ue1
/data/media/####/3pwas81gvyfeycy79gvg9gj7v
/data/media/####/3rjq35l5tzwo54p6hwfi18dq2
/data/media/####/4426434.kf
/data/media/####/4c3a3ymnjp8vpyfdxoj9vc1zh
/data/media/####/4fgh3lekay1mmed9ttmzo4tv
/data/media/####/4fr6va02jhajpmrytg5js7hug
/data/media/####/4p8fw6ap5tzdgak5bi3kxwrel
/data/media/####/54ldzlfxpqmj6e5kg479w2asu
/data/media/####/5arymtb45t6kcjhx3ekc8o7kg
/data/media/####/5fvm83bgwwmktapaohpve7aqd
/data/media/####/62fwyqj9n4rdse9kxcc6izypg
/data/media/####/6dxymx188mgy7f152s9pdz4rn
/data/media/####/6ylwd4td8a9t9pz2sxj5184u
/data/media/####/6ypzvc30opub4o33d4wlljepg
/data/media/####/73d2dlnxo260hmxxhrjw4tr3
/data/media/####/7ajvqca8r7jvpttbrue4dbhvh
/data/media/####/7izfsc64xpf7rmeczamd4qe06
/data/media/####/875796.kf
/data/media/####/939992.kf
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/K102513.cover
/data/media/####/K102513.cover.tmp
/data/media/####/app.db
/data/media/####/bookinfo.bat
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.mfdzsc.db
/data/media/####/conlts.dat
/data/media/####/ex_info.kf
/data/media/####/factory.dzt
/data/media/####/html.css
/data/media/####/html.js
/data/media/####/html.txt
/data/media/####/ian0ex1xaikk25upq2tnv8ph
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/payerr.txt
/data/media/####/tdata_SzD730
/data/media/####/tdata_ZCi456
/data/media/####/test.0
/data/media/####/test.log
/data/media/####/visen.conf.mark
/data/media/####/visen.conf.out.temp
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.dat

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24012 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
mount

Loads the following dynamic libraries:

getuiext2
libjiagu
locSDK7

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding

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 APN settings.

Gains access to information about installed applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

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