Adware.Gexin.9864

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Accesses the ITelephony private interface.

Network activity:

Connects to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) c.appj####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(TLS/1.0) ssl.gst####.com:443
TCP(TLS/1.0) www.go####.com:443
TCP(TLS/1.0) www.gst####.com:443
TCP(TLS/1.0) cl####.365ji####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

7j####.c####.z0.####.com
c####.g####.ig####.com
c-h####.g####.com
c.appj####.com
cl####.365ji####.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
ssl.gst####.com
www.go####.com
www.gst####.com

HTTP GET requests:

t####.c####.q####.####.com/tdata_Rnl693
t####.c####.q####.####.com/tdata_Soq141
t####.c####.q####.####.com/tdata_fEV688
t####.c####.q####.####.com/tdata_siA393
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

c-h####.g####.com/api.php?format=####&t=####
c.appj####.com/ad/splash/stats.html
sdk.o####.p####.####.com/api.php?format=####&t=####
sdk.o####.p####.####.com/api.php?format=####&t=####&d=####&k=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/Bean.js
/data/data/####/H5FDCAF20.xml
/data/data/####/about.html
/data/data/####/about_content.png
/data/data/####/about_us_bg.png
/data/data/####/ad_show_time.xml
/data/data/####/banner.html
/data/data/####/banner_1.jpg
/data/data/####/banner_2.jpg
/data/data/####/banner_3.jpg
/data/data/####/big_class_1.png
/data/data/####/big_class_2.png
/data/data/####/cache.png
/data/data/####/castapp.js
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/clappr-video360.min.js
/data/data/####/clientid_igexin.xml
/data/data/####/cloudvPlayer.min.js
/data/data/####/common.js
/data/data/####/constant.js
/data/data/####/course_detail.html
/data/data/####/course_detail2.html
/data/data/####/course_package_detail.html
/data/data/####/course_package_detail2.html
/data/data/####/course_package_list.html
/data/data/####/course_play.html
/data/data/####/course_play.js
/data/data/####/course_play2.html
/data/data/####/course_sub_package_list.html
/data/data/####/create_order.html
/data/data/####/create_order.js
/data/data/####/data_0
/data/data/####/data_1
/data/data/####/data_2
/data/data/####/data_3
/data/data/####/demo_exam_list.html
/data/data/####/demo_sub_exam_list.html
/data/data/####/down_pause.png
/data/data/####/down_remove.png
/data/data/####/down_start.png
/data/data/####/download.js
/data/data/####/empy.png
/data/data/####/error_img.png
/data/data/####/exam_pager_answer.html
/data/data/####/exam_pager_answer_error.html
/data/data/####/exam_pager_answer_nav.html
/data/data/####/feedback.html
/data/data/####/forget_password.html
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/go_login_bg.png
/data/data/####/go_study.png
/data/data/####/guidance_materials_detail.html
/data/data/####/guidance_materials_list.html
/data/data/####/guidance_materials_sub_exam_list.html
/data/data/####/guide1.jpg
/data/data/####/guide2.jpg
/data/data/####/guide3.jpg
/data/data/####/guide_user.html
/data/data/####/gx_sp.xml
/data/data/####/header_default.png
/data/data/####/history_exam_list.html
/data/data/####/history_sub_exam_list.html
/data/data/####/iconfont.css
/data/data/####/iconfont.ttf
/data/data/####/iconfont_cache.css
/data/data/####/iconfont_cache.ttf
/data/data/####/iconfont_play.css
/data/data/####/iconfont_play.ttf
/data/data/####/index
/data/data/####/index.html
/data/data/####/index_demo.png
/data/data/####/index_guidance_material.png
/data/data/####/index_history_exam.png
/data/data/####/index_latest_info.png
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/latest_information.html
/data/data/####/latest_sign_up_detail.html
/data/data/####/latest_sub_information.html
/data/data/####/libjiagu.so
/data/data/####/login.html
/data/data/####/logo365.png
/data/data/####/major_list.html
/data/data/####/manifest.json
/data/data/####/mobclick_agent_cached_com.jiaoyu36583
/data/data/####/more.png
/data/data/####/mui.css
/data/data/####/mui.js
/data/data/####/mui.min.css
/data/data/####/mui.min.js
/data/data/####/mui.previewimage.js
/data/data/####/mui.ttf
/data/data/####/mui.zoom.js
/data/data/####/my_address.png
/data/data/####/my_address_add.html
/data/data/####/my_address_list.html
/data/data/####/my_address_sub_list.html
/data/data/####/my_cache.png
/data/data/####/my_cache_list.html
/data/data/####/my_contract.png
/data/data/####/my_course.png
/data/data/####/my_course_list.html
/data/data/####/my_course_no_data.png
/data/data/####/my_cousrse_sub_list.html
/data/data/####/my_message.png
/data/data/####/my_message_list.html
/data/data/####/my_message_sub_list.html
/data/data/####/my_order.png
/data/data/####/my_order_detail.html
/data/data/####/my_order_list.html
/data/data/####/my_order_sub_list.html
/data/data/####/my_setting.png
/data/data/####/order_pay_way.html
/data/data/####/pay_select_flag.png
/data/data/####/pdr.xml
/data/data/####/play_bg.jpg
/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/####/register.html
/data/data/####/run.pid
/data/data/####/select_category.html
/data/data/####/settings.html
/data/data/####/share.png
/data/data/####/splash.html
/data/data/####/splash_bg.jpg
/data/data/####/stream_permission.xml
/data/data/####/style.css
/data/data/####/tab_course.html
/data/data/####/tab_home.html
/data/data/####/tab_home_main.html
/data/data/####/tab_my.html
/data/data/####/tdata_Rnl693
/data/data/####/tdata_Rnl693.jar
/data/data/####/tdata_Soq141
/data/data/####/tdata_Soq141.jar
/data/data/####/tdata_fEV688
/data/data/####/tdata_fEV688.jar
/data/data/####/tdata_siA393
/data/data/####/tdata_siA393.jar
/data/data/####/time.png
/data/data/####/ting.png
/data/data/####/to_top.png
/data/data/####/umeng_general_config.xml
/data/data/####/user_info.html
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/weixin_pay_icon.png
/data/data/####/zhifubao_pay_icon..png
/data/data/####/zy.media.min.css
/data/data/####/zy.media.min.js
/data/media/####/.nomedia
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.jiaoyu365.bin
/data/media/####/com.jiaoyu365.db
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_Rnl693
/data/media/####/tdata_Soq141
/data/media/####/tdata_fEV688
/data/media/####/tdata_siA393
/data/media/####/temp.arm
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/io.dcloud.feature.apsGt.GTNormalPushService 24180 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
mount
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/io.dcloud.feature.apsGt.GTNormalPushService 24180 300 0

Loads the following dynamic libraries:

getuiext2
libjiagu

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-ECB-PKCS5Padding

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.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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