Adware.Gexin.9923

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) a.appj####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5227

DNS requests:

a.appj####.com
c####.g####.ig####.com
c.sz.gt.####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP POST requests:

a.appj####.com/ad-service/ad/mark
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.imei.txt
/data/data/####/.jg.ic
/data/data/####/.log.lock
/data/data/####/.log.ls
/data/data/####/H5D37A736.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/clientid_igexin.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/libjiagu.so
/data/data/####/mobclick_agent_cached_com.myzczk.app151
/data/data/####/pdr.xml
/data/data/####/push.pid
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/umeng_general_config.xml
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/media/####/.imei.txt
/data/media/####/1.jpg
/data/media/####/10.jpg
/data/media/####/100x100.png
/data/media/####/11.jpg
/data/media/####/11.png
/data/media/####/14.jpg
/data/media/####/16.png
/data/media/####/2.jpg
/data/media/####/3.jpg
/data/media/####/4.jpg
/data/media/####/5.jpg
/data/media/####/6.jpg
/data/media/####/6.png
/data/media/####/7.jpg
/data/media/####/8.jpg
/data/media/####/9.jpg
/data/media/####/aboutUs.html
/data/media/####/aboutUs1.png
/data/media/####/all.jpg
/data/media/####/app.db
/data/media/####/archived.html
/data/media/####/archived.js
/data/media/####/areaList.json
/data/media/####/arttmpl.js
/data/media/####/authenticationRealName.js
/data/media/####/avalon.modern.js
/data/media/####/avalon.modern.min.js
/data/media/####/before-voice.jpg
/data/media/####/bindEmailPhone.js
/data/media/####/bindPhone.html
/data/media/####/bindPhone.js
/data/media/####/caseDetail.js
/data/media/####/case_detail.html
/data/media/####/case_list.html
/data/media/####/case_list.js
/data/media/####/chat.html
/data/media/####/chat.js
/data/media/####/chatLogo.jpg
/data/media/####/checkArea.html
/data/media/####/checkArea.js
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.myzczk.app.db
/data/media/####/commom.css
/data/media/####/commom.js
/data/media/####/config.js
/data/media/####/crash_1552160217080_2019-03-09-19-36-57.log
/data/media/####/create_folder.html
/data/media/####/default.png
/data/media/####/defultPortail.png
/data/media/####/demo.css
/data/media/####/deng.mp3
/data/media/####/deng.wav
/data/media/####/editEmailPhone.js
/data/media/####/editEmailPhoneNext.js
/data/media/####/editMajojr.html
/data/media/####/editMajojrChecked.html
/data/media/####/editMajorType.js
/data/media/####/editMajorTypeCheck.js
/data/media/####/editPassword.js
/data/media/####/editPromote.js
/data/media/####/editUnit.js
/data/media/####/editUserName.js
/data/media/####/edit_folder.html
/data/media/####/entryDetail.html
/data/media/####/entryDetail.js
/data/media/####/feedBack.js
/data/media/####/feedback.html
/data/media/####/folder_content.html
/data/media/####/forgetConfirm.html
/data/media/####/forgetPassword.html
/data/media/####/get_history_msg.js
/data/media/####/help.html
/data/media/####/help.js
/data/media/####/helpDetail.html
/data/media/####/home.html
/data/media/####/home.js
/data/media/####/home_kv.jpg
/data/media/####/home_kv2.jpg
/data/media/####/home_kv3.jpg
/data/media/####/home_search.html
/data/media/####/iconfont.css
/data/media/####/iconfont.eot
/data/media/####/iconfont.svg
/data/media/####/iconfont.ttf
/data/media/####/iconfont.woff
/data/media/####/index.html
/data/media/####/index.js
/data/media/####/iscroll.js
/data/media/####/json2.js
/data/media/####/lawDetail.html
/data/media/####/lawDetail.js
/data/media/####/lectureHall.html
/data/media/####/login.html
/data/media/####/login.js
/data/media/####/login_from_chat.js
/data/media/####/login_from_other.js
/data/media/####/mainComponent.js
/data/media/####/manifest.json
/data/media/####/map.jpg
/data/media/####/messageDetail.html
/data/media/####/message_list.html
/data/media/####/mime.js
/data/media/####/mine.html
/data/media/####/mui.css
/data/media/####/mui.imageViewer.js
/data/media/####/mui.indexedlist.js
/data/media/####/mui.js
/data/media/####/mui.min.css
/data/media/####/mui.min.js
/data/media/####/mui.previewimage.js
/data/media/####/mui.ttf
/data/media/####/mui.zoom.js
/data/media/####/myFavorate.js
/data/media/####/my_RealName.html
/data/media/####/my_bindEmail.html
/data/media/####/my_editEmail.html
/data/media/####/my_editEmailNext.html
/data/media/####/my_editPassword.html
/data/media/####/my_editUserName.html
/data/media/####/my_editpromot.html
/data/media/####/my_favorite.html
/data/media/####/my_joinUnit.html
/data/media/####/my_userInfo.html
/data/media/####/narrow.png
/data/media/####/notice.js
/data/media/####/oauthlogin.js
/data/media/####/offlineDetail.js
/data/media/####/offline_detail.html
/data/media/####/offline_resource.html
/data/media/####/offline_resource.js
/data/media/####/perfessor_detail.js
/data/media/####/perfessor_list.js
/data/media/####/play_sound_msg.js
/data/media/####/professor.jpg
/data/media/####/professor_detail.html
/data/media/####/professor_list.html
/data/media/####/profile_manager.js
/data/media/####/receive_new_msg.js
/data/media/####/register.html
/data/media/####/register.js
/data/media/####/scrollBar.js
/data/media/####/send_common_msg.js
/data/media/####/server.js
/data/media/####/serverDetail.html
/data/media/####/serverDetail.js
/data/media/####/server_CloudDisk.js
/data/media/####/server_detail.html
/data/media/####/server_file.js
/data/media/####/server_folderOperate.js
/data/media/####/service.html
/data/media/####/setting.html
/data/media/####/setting.js
/data/media/####/show_one_msg.js
/data/media/####/style.css
/data/media/####/supplier.js
/data/media/####/supplier_detail.html
/data/media/####/supplier_list.html
/data/media/####/supplier_list.js
/data/media/####/template-native.js
/data/media/####/templateMine.js
/data/media/####/uploadDownload.js
/data/media/####/versionUpdate.html
/data/media/####/versionUpdate.js
/data/media/####/voice.gif
/data/media/####/webim.js
/data/media/####/webim_global_var.js
/data/media/####/zepto.min.js

Miscellaneous:

Executes the following shell scripts:

chmod 755 <Package Folder>/.jiagu/libjiagu.so

Loads the following dynamic libraries:

getuiext2
libjiagu

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses special library to hide executable bytecode.

Gets information about network.

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

Gets information about installed apps.

Gets information about running 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

Free trial