Adware.Gexin.820

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) wb.110.ta####.com:80
TCP(HTTP/1.1) sdk.o####.amp.####.com:80
TCP(HTTP/1.1) zhg.ali####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) sni.c####.q####.####.net:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) a####.m.ta####.com:80
TCP(TLS/1.0) ssl.gst####.com:443
TCP(TLS/1.0) m.reall####.cn:443
TCP(TLS/1.0) www.go####.com:443
TCP(TLS/1.0) www.gst####.com:443
TCP(TLS/1.0) s####.tc.qq.com:443
TCP(TLS/1.0) stati####.dongd####.com:443
TCP(TLS/1.0) i####.dongd####.com:443
TCP(TLS/1.0) stati####.reall####.cn:443
TCP(TLS/1.0) m.ch####.com:443
TCP(TLS/1.0) www.go####.nl:443
TCP(TLS/1.0) f####.ch####.com:443
TCP(TLS/1.0) adser####.go####.com:443
TCP c####.g####.ig####.com:5224
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.m.ta####.com
adser####.go####.com
and####.b####.qq.com
c####.g####.ig####.com
c-h####.g####.com
f####.ch####.com
hotp####.wan####.ta####.com
i####.dongd####.com
loc.map.b####.com
m.ch####.com
m.reall####.cn
r####.wx.qq.com
sdk.c####.ig####.com
sdk.o####.amp.####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
ssl.gst####.com
stati####.dongd####.com
stati####.reall####.cn
wb.110.ta####.com
www.go####.com
www.go####.nl
www.gst####.com
y####.al####.com

HTTP GET requests:

a####.m.ta####.com/rest/abtest?logid=####&ak=####&av=####&c=####&v=####&...
sdk.o####.amp.####.com/api.htm?format=####&t=####
sni.c####.q####.####.net/config/hz-hzv3.conf
sni.c####.q####.####.net/tdata_YEE769
sni.c####.q####.####.net/tdata_qHR433

HTTP POST requests:

a####.m.ta####.com/rest/gc?dd=####&nsgs=####&ak=####&av=####&c=####&v=##...
a####.m.ta####.com/rest/sur?ak=####&av=####&c=####&v=####&s=####&d=####&...
and####.b####.qq.com/rqd/async?aid=####
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=####
wb.110.ta####.com/api/update.do
zhg.ali####.com/saveWb.json

Modified file system:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/1004
/data/data/####/16676b2314c98f26f2b13f89623c52e62c617e8d174b0c2....0.tmp
/data/data/####/186848deced564b4a2c98992ae6e8f065612a37c39c9811....0.tmp
/data/data/####/1d77ea041509fe06.lock
/data/data/####/29f51909b5406a1b7506a10418c17d6fdc0f8fd01b6954d....0.tmp
/data/data/####/2f433954baed9fd19663d00fac608e8d7ac24d3430ab3a1....0.tmp
/data/data/####/404b67ce286bf28738f2719c36ce67cc9bd2e30a83fad3d....0.tmp
/data/data/####/41e7c8bf01187f0242fbbfe2bdfa937997fa1b8468c91d6....0.tmp
/data/data/####/46522f8d73a0bcd99c8888e43d4b50f872bf5dd899e9171....0.tmp
/data/data/####/49814c4f5ac2f2f9.lock
/data/data/####/4a9f40b61832b26baf33d860b91cf82a5fc7e573618b3ee....0.tmp
/data/data/####/4d855acc53b3d86ed60509f3442b31e8ffe81ece1f2ac7b....0.tmp
/data/data/####/52731c2d0ecf6a73c3a011982ef59f23df546bf31009ddf....0.tmp
/data/data/####/5aee634925c25176030f6e8b89b7176749a689b520b25e1....0.tmp
/data/data/####/62821ea89910db09fa8b70bff5419ec352f8d68dda7961e....0.tmp
/data/data/####/64c54d1a99c6d2da586ae744210e884c223774a609300a8....0.tmp
/data/data/####/6635101ae0250a6d292e6ac427280b38f9585c5ee1c7613....0.tmp
/data/data/####/6a3864e097e4c8e772ccbced00f260ab6c29a316019f966....0.tmp
/data/data/####/6f5d98c5e809b840443808b2e3f197e3e54e13d3561be3e....0.tmp
/data/data/####/72c1ff3ec75773a24b496a788337011ab2cfa2d7de25abd....0.tmp
/data/data/####/76f9d524ec8445badfcee38e31185538591b45fc8fc2563....0.tmp
/data/data/####/78ed4456cad9516b4b5999491923788615a21efe6b1a9b5....0.tmp
/data/data/####/7b015bd0617edf53940cd5c39f1f19cf9820fa6f71a401d....0.tmp
/data/data/####/84d2eb1947552f4ef4263aed8ab220ccfe238da4d75cbde....0.tmp
/data/data/####/900c7e89cba6bce9e23d27b9be33f48f3d7ba814ed4123d....0.tmp
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/MultiDex.lock
/data/data/####/SGMANAGER_DATA.xml
/data/data/####/UTCommon.xml
/data/data/####/UTMCConf2139252126.xml
/data/data/####/UTMCLog2139252126.xml
/data/data/####/b5c29b5b215f279e31baf4d2d39555f82e96a37b5ddf9d8....0.tmp
/data/data/####/b90242ae7f3f8f06c96c555a8318bbcfe9dfb18b1c4b789....0.tmp
/data/data/####/bf3e55735e700dbd4c5588104707fa3a0f0dd0ae47b901b....0.tmp
/data/data/####/bf537d546fa9a7050527ebfcbfc8d0b7f632790bab1fe35....0.tmp
/data/data/####/bugly_db_-journal
/data/data/####/c788cb602db30c02929e2450672b0b7c407a8d4d80684d0....0.tmp
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/chemao_sharepref.xml
/data/data/####/com.really.car_2071
/data/data/####/com.really.car_TcmsService_2114
/data/data/####/com.really.car_preferences.xml
/data/data/####/crashrecord.xml
/data/data/####/d2a50ebb0f1ac9b856dd016d2c6c449aeb39a0092b55727....0.tmp
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/e7391fe292e9e3a6281c5b81648c290980f7241aa2b67ac....0.tmp
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/f_000004
/data/data/####/f_000005
/data/data/####/f_000006
/data/data/####/f_000007
/data/data/####/f_000008
/data/data/####/f_000009
/data/data/####/f_00000a
/data/data/####/f_00000b
/data/data/####/firll.dat
/data/data/####/gdaemon_20161017
/data/data/####/index
/data/data/####/init.pid
/data/data/####/journal.tmp
/data/data/####/libjiagu578126948.so
/data/data/####/libsecuritysdkx-3.1.27.so.tmp
/data/data/####/local_crash_lock
/data/data/####/mobclick_agent_cached_com.really.car83
/data/data/####/multidex.version.xml
/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/####/run.pid
/data/data/####/security_info
/data/data/####/sp.lock
/data/data/####/tdata_YEE769
/data/data/####/tdata_YEE769.jar
/data/data/####/tdata_qHR433
/data/data/####/tdata_qHR433.jar
/data/data/####/umeng_general_config.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/ywAccount.xml
/data/media/####/.cuid
/data/media/####/.nomedia
/data/media/####/2_20180731_r
/data/media/####/6c709c11d2d46a7b
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.really.car.db
/data/media/####/conlts.dat
/data/media/####/dd7893586a493dc3
/data/media/####/ller.dat
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_YEE769
/data/media/####/tdata_qHR433
/data/media/####/test.0
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop androVM.vbox_dpi
/system/bin/sh -c getprop gsm.sim.state
/system/bin/sh -c getprop gsm.sim.state2
/system/bin/sh -c getprop qemu.sf.fake_camera
/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.debuggable
/system/bin/sh -c getprop ro.genymotion.version
/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.secure
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24370 300 0
cat /proc/cpuinfo | grep Serial
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu578126948.so
getprop androVM.vbox_dpi
getprop gsm.sim.state
getprop gsm.sim.state2
getprop qemu.sf.fake_camera
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.debuggable
getprop ro.genymotion.version
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.miui.ui.version.name
getprop ro.product.cpu.abi
getprop ro.secure
getprop ro.vivo.os.build.display.id
ls -l /system/xbin/su
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/com.igexin.sdk.PushService 24370 300 0

Loads the following dynamic libraries:

Bugly
getuiext2
inet.2.0
libjiagu578126948
locSDK6a
securitysdk-3.1

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-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 running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

Free trial