Adware.Gexin.9477

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) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) no####.p####.cn:80
TCP(HTTP/1.1) a####.u####.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(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) run####.statis####.e####.com:80
TCP(HTTP/1.1) cgi.con####.qq.com:80
TCP(HTTP/1.1) qin####.com.www.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) pi####.qq.com:80
UDP(NTP) 0.a####.p####.####.org:123
UDP(NTP) 1.cn.p####.####.org:123
TCP(TLS/1.0) api.w####.com:443
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5226

DNS requests:

0.a####.p####.####.org
1.cn.p####.####.org
7j####.c####.z0.####.com
a####.u####.com
a.appj####.com
api.w####.com
av1.x####.com
c####.g####.ig####.com
c####.x####.com
c-h####.g####.com
c.appj####.com
cgi.con####.qq.com
i####.cn
no####.p####.cn
pi####.qq.com
pub-####.qin####.com
run####.statis####.e####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

cgi.con####.qq.com/qqconnectopen/openapi/policy_conf?sdkv=####&appid=###...
no####.p####.cn/notify/log/exception?version=####&appId=####&pkgName=###...
qin####.com.www.####.com/tdata_EDT369
t####.c####.q####.####.com/tdata_AXX896
t####.c####.q####.####.com/tdata_BAI450
t####.c####.q####.####.com/tdata_Fus136
ti####.c####.l####.####.com/config/hz-hzv3.conf

HTTP POST requests:

a####.u####.com/app_logs
a.appj####.com/jiagu/check/upgrade
c-h####.g####.com/api.php?format=####&t=####
c.appj####.com/ad/splash/stats.html
pi####.qq.com/mstat/report
run####.statis####.e####.com/runtimeStat.php
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/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1551545181025_2285
/data/data/####/1551545181266_2285
/data/data/####/1551545181353_2285
/data/data/####/1551545187360_2372
/data/data/####/1551545188612_2285
/data/data/####/1551545192734_2490
/data/data/####/1551545196954_2490
/data/data/####/1551545198005_2606
/data/data/####/1551545204944_2606
/data/data/####/1551545207414_2741
/data/data/####/1551545212351_2741
/data/data/####/1551545215108_2851
/data/data/####/1551545219829_2851
/data/data/####/1551545222520_2960
/data/data/####/1551545227336_2960
/data/data/####/1551545230068_3089
/data/data/####/1551545235543_3089
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/TDCloudSettingsConfigF3F11760F19541C6A71540E5245C07DD.xml
/data/data/####/TD_app_pefercen_profile.xml
/data/data/####/TDpref_longtime.xml
/data/data/####/TDpref_longtime0.xml
/data/data/####/TDpref_shorttime.xml
/data/data/####/TDpref_shorttime0.xml
/data/data/####/ad_show_time.xml
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.caomei.huanlecai_preferences.xml
/data/data/####/com.tencent.open.config.json.101387542
/data/data/####/e964f9d23c43
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gkt-journal
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/libjiagu.so
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/tdata_AXX896
/data/data/####/tdata_AXX896.jar
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/tdata_Fus136
/data/data/####/tdata_Fus136.jar
/data/data/####/tdid.xml
/data/data/####/tencent_analysis.db-journal
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/weibo_sdk_aid1
/data/media/####/.tcookieid
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.caomei.huanlecai.bin
/data/media/####/com.caomei.huanlecai.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.tencent.mobileqq_connectSdk.19.03.02.16.log
/data/media/####/gkt-journal
/data/media/####/gktper
/data/media/####/tdata_AXX896
/data/media/####/tdata_BAI450
/data/media/####/tdata_Fus136
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.CaiPushService 24971 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
getprop
mount

Loads the following dynamic libraries:

MtaNativeCrash
egret
getuiext2
libjiagu
weibosdkcore

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-CFB-NoPadding
AES-ECB-PKCS5Padding
DES-CBC-PKCS5Padding
RSA
RSA-ECB-NoPadding
RSA-ECB-PKCS1PADDING
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-ECB-PKCS5Padding
DES-CBC-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 APN settings.

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

Free trial