Adware.Gexin.992

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####.m.ta####.com:80
TCP(HTTP/1.1) wb.110.ta####.com:80
TCP(HTTP/1.1) zhg.ali####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) sdk.o####.amp.####.com:80
TCP(HTTP/1.1) tcms-op####.wan####.ta####.com:80
TCP(TLS/1.0) m.reall####.cn:443
TCP(TLS/1.0) f####.ch####.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

DNS requests:

a####.m.ta####.com
and####.b####.qq.com
f####.ch####.com
hotp####.wan####.ta####.com
i####.dongd####.com
m.reall####.cn
q.tinkerp####.com
r####.wx.qq.com
sdk.o####.amp.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
stati####.dongd####.com
tcms-op####.wan####.ta####.com
wb.110.ta####.com
y####.al####.com

HTTP GET requests:

sdk.o####.amp.####.com/api.htm?format=####&t=####
tcms-op####.wan####.ta####.com/getapprule?appkey=####&appId=####

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=####
t####.c####.q####.####.com/30a8274b3a79a4c2/2.14.43?d=####&v=####
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/####/1058bea31111c5dbdf4e7ad3052dd4d2-journal
/data/data/####/1d77ea041509fe06.lock
/data/data/####/30a8274b3a79a4c2_version.info
/data/data/####/49814c4f5ac2f2f9.lock
/data/data/####/501199eb6471bd57f04b5c9318c3f723bd71de1346314ab....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/####/UTMCConf-1390754130.xml
/data/data/####/UTMCLog-1390754130.xml
/data/data/####/_andfix_.xml
/data/data/####/bugly_db_-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/channel_pre.xml
/data/data/####/chemao_sharepref.xml
/data/data/####/com.chemao.car_2082
/data/data/####/com.chemao.car_TcmsService_2125
/data/data/####/com.chemao.car_TcmsService_2409
/data/data/####/com.chemao.car_TcmsService_2495
/data/data/####/com.chemao.car_preferences.xml
/data/data/####/crashrecord.xml
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/f_000001
/data/data/####/f_000002
/data/data/####/f_000003
/data/data/####/index
/data/data/####/journal.tmp
/data/data/####/libjiagu-906964652.so
/data/data/####/libsecuritysdkx-3.1.27.so.tmp
/data/data/####/local_crash_lock
/data/data/####/mobclick_agent_cached_com.chemao.car367
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/patch_server_config.xml
/data/data/####/pushsdk.db-journal
/data/data/####/security_info
/data/data/####/sp.lock
/data/data/####/umeng_general_config.xml
/data/data/####/version.lock
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/ywAccount.xml
/data/data/####/ywPrefsTools.xml
/data/media/####/.cuid
/data/media/####/2_20180808_r
/data/media/####/6c709c11d2d46a7b
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/dd7893586a493dc3

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
cat /proc/cpuinfo | grep Serial
chmod 755 <Package Folder>/.jiagu/libjiagu-906964652.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.rom.id
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.meizu.product.model
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

Loads the following dynamic libraries:

Bugly
andfix
getuiext2
inet.2.0
libjiagu-906964652
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 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

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