Adware.Gexin.13944

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk-ope####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) c.appj####.com:80
TCP(HTTP/1.1) a.appj####.com:80
TCP c####.g####.ig####.com:5227
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a.appj####.com
c####.g####.ig####.com
c-h####.g####.com
c.appj####.com
sdk-ope####.g####.com
sdk.c####.ig####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

t####.c####.q####.####.com/config/hz-hzv6.conf
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_fEV688
t####.c####.q####.####.com/tdata_ilz707
t####.c####.q####.####.com/tdata_zbA366

HTTP POST requests:

a.appj####.com/jiagu/check/upgrade
c-h####.g####.com/api.php?format=####&t=####
c.appj####.com/ad/splash/stats.html
sdk-ope####.g####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/H5C84F75C.xml
/data/data/####/Sword.png
/data/data/####/activity.html
/data/data/####/activity.js
/data/data/####/ad_show_time.xml
/data/data/####/back.png
/data/data/####/basic_edit.html
/data/data/####/basic_edit.js
/data/data/####/campaign.html
/data/data/####/campaign.js
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/chatRoom.html
/data/data/####/chatRoom.js
/data/data/####/clientid_igexin.xml
/data/data/####/comments.html
/data/data/####/comments.js
/data/data/####/createPond.html
/data/data/####/createPond.js
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/default2.png
/data/data/####/derivative.html
/data/data/####/derivative.js
/data/data/####/derivativeCenter.html
/data/data/####/derivativeCenter.js
/data/data/####/derivativeList.html
/data/data/####/derivativeList.js
/data/data/####/file__0.localstorage-journal
/data/data/####/find.html
/data/data/####/find.js
/data/data/####/find1.png
/data/data/####/find2.png
/data/data/####/find_activity.html
/data/data/####/find_activity.js
/data/data/####/find_world.html
/data/data/####/find_world.js
/data/data/####/game.html
/data/data/####/game.js
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/guide.html
/data/data/####/guide.js
/data/data/####/guide1.jpg
/data/data/####/guide2.jpg
/data/data/####/guide3.jpg
/data/data/####/guide4.jpg
/data/data/####/guide5.jpg
/data/data/####/home_recomend.html
/data/data/####/home_recomend.js
/data/data/####/home_strategy.html
/data/data/####/home_strategy.js
/data/data/####/home_video.html
/data/data/####/home_video.js
/data/data/####/index
/data/data/####/index.html
/data/data/####/index.js
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/libjiagu.so
/data/data/####/liyu.css
/data/data/####/main.html
/data/data/####/main.js
/data/data/####/main1.png
/data/data/####/main2.png
/data/data/####/manifest.json
/data/data/####/message.html
/data/data/####/message.js
/data/data/####/mobclick_agent_cached_io.dcloud.H5C84F75C57
/data/data/####/mui.css
/data/data/####/mui.pullToRefresh.js
/data/data/####/mui.pullToRefresh.material.js
/data/data/####/my.html
/data/data/####/my.js
/data/data/####/my1.png
/data/data/####/my2.png
/data/data/####/myCollection.html
/data/data/####/myCollection.js
/data/data/####/orderCenter.html
/data/data/####/orderCenter.js
/data/data/####/orderList.html
/data/data/####/orderlist.js
/data/data/####/outLinkBox.html
/data/data/####/outLinkBox.js
/data/data/####/package.html
/data/data/####/package.js
/data/data/####/packageCenter.html
/data/data/####/packageCenter.js
/data/data/####/packageList.html
/data/data/####/packagelist.js
/data/data/####/pdr.xml
/data/data/####/pond.html
/data/data/####/pond.js
/data/data/####/pondList.html
/data/data/####/pondList.js
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushk.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/score.html
/data/data/####/score.js
/data/data/####/scoreCenter.html
/data/data/####/scoreCenter.js
/data/data/####/search.html
/data/data/####/search.js
/data/data/####/searchfn.png
/data/data/####/share.js
/data/data/####/shop.html
/data/data/####/shop.js
/data/data/####/shop1.png
/data/data/####/shop2.png
/data/data/####/spa_package.js
/data/data/####/special.html
/data/data/####/special.js
/data/data/####/special1.png
/data/data/####/special2.png
/data/data/####/stream_permission.xml
/data/data/####/style.css
/data/data/####/swiper.css
/data/data/####/swiper.js
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_fEV688
/data/data/####/tdata_fEV688.jar
/data/data/####/tdata_ilz707
/data/data/####/tdata_ilz707.jar
/data/data/####/tdata_zbA366
/data/data/####/tdata_zbA366.jar
/data/data/####/umeng_general_config.xml
/data/data/####/user.html
/data/data/####/user.js
/data/data/####/video_play.html
/data/data/####/video_play.js
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/webviewGroup.js
/data/data/####/webviewGroupNoSlide.js
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/io.dcloud.H5C84F75C.bin
/data/media/####/io.dcloud.H5C84F75C.db
/data/media/####/tdata_Soq141
/data/media/####/tdata_fEV688
/data/media/####/tdata_ilz707
/data/media/####/tdata_zbA366
/data/media/####/temp.arm
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /proc/cpuinfo
<Package Folder>/files/gdaemon_20161017 0 <Package>/io.dcloud.feature.apsGt.GTNormalPushService 24488 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
sh

Loads the following dynamic libraries:

getuiext2
libjiagu

Uses the following algorithms to encrypt data:

AES-ECB-PKCS5Padding
RSA
RSA-ECB-NoPadding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-ECB-PKCS5Padding

Accesses the ITelephony private interface.

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about network.

Gets information about phone status (number, IMEI, etc.).

Gets information about installed apps.

Adds tasks to the system scheduler.

Displays its own windows over windows of other apps.

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