Adware.Gexin.11508

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) a####.u####.com:80
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) c####.b####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) 2####.181.163.108:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) res####.a####.com:80
TCP(HTTP/1.1) a####.m.ta####.com:80
TCP(TLS/1.0) ssl.gst####.com:443
TCP(TLS/1.0) re####.gz.baid####.com:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) img-x####.zhonggu####.com:443
TCP(TLS/1.0) www.go####.com:443
TCP(TLS/1.0) www.gst####.com:443
TCP(TLS/1.0) public-####.oss-cn-####.aliy####.com:443
TCP(TLS/1.0) xhpf####.zhonggu####.com:443
TCP sdk.o####.t####.####.com:5224
TCP c####.g####.ig####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.m.ta####.com
a####.u####.com
and####.b####.qq.com
api####.a####.com
c####.b####.com
c####.g####.ig####.com
c-h####.g####.com
img-x####.zhonggu####.com
log.u####.com
public-####.oss-cn-####.aliy####.com
re####.gz.baid####.com
res####.a####.com
s####.u####.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
xhpf####.zhonggu####.com

HTTP GET requests:

t####.c####.q####.####.com/tdata_BAI450
ti####.c####.l####.####.com/config/hz-hzv3.conf

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=####&...
a####.u####.com/app_logs
and####.b####.qq.com/rqd/async?aid=####
c####.b####.com/api/weblog?timestamp=####&os=####&token=####&os_ver=####...
c-h####.g####.com/api.php?format=####&t=####
res####.a####.com/v3/config/resource?
res####.a####.com/v3/log/init
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/1004
/data/data/####/1554232109035.log
/data/data/####/1554232109035.log.bak
/data/data/####/36dvv14YSxaHYRDUCDCdGjVZsbs.-1606133616.tmp
/data/data/####/A6P1MjY5mDSgIviEVzUGUUiEivQ.398482064.tmp
/data/data/####/AjIW_EpPH_-F1is1GxlbWkaNBXw.787927752.tmp
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/Hxy9A0h-ofk5hKsNMKG4YVAu8_Q.692164910.tmp
/data/data/####/KrXkoDVGJo5XJdcXYAcwoKtAyDI.-1174503722.tmp
/data/data/####/Mo15DvEL7xN3XQKCjNwLPWEn0_w.1629070043.tmp
/data/data/####/R_HzcKzIYgHj_1qW7neSOoTna24.-984998386.tmp
/data/data/####/RhCI9WKKnfjv3M4ty_iu6kWK5mc.1324696865.tmp
/data/data/####/STATISTIC.xml
/data/data/####/Sx1qC-Q_q5Hx1p9mCws9xkllNr0.-1860461083.tmp
/data/data/####/UTCommon.xml
/data/data/####/UTMCConf-1530170869.xml
/data/data/####/UTMCConf248423210.xml
/data/data/####/UTMCLog-1530170869.xml
/data/data/####/UTMCLog248423210.xml
/data/data/####/Y8gOEhm8AX-cAT6uUjVSILJTh3s.1926042277.tmp
/data/data/####/__Baidu_Stat_SDK_SendRem.xml
/data/data/####/__local_last_session.json
/data/data/####/__local_stat_cache.json
/data/data/####/__send_data_1554232105020
/data/data/####/__send_data_1554232108440
/data/data/####/app_config.xml
/data/data/####/baidu_tts_license
/data/data/####/batsdk_crash_switch.xml
/data/data/####/bugly_db_-journal
/data/data/####/com.baidu.duersdk.xml
/data/data/####/crashrecord.xml
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/last_known_location.xml
/data/data/####/libcuid.so
/data/data/####/libjiagu.so
/data/data/####/local_crash_lock
/data/data/####/multidex.version.xml
/data/data/####/native_record_lock
/data/data/####/on4Ahe3s2Hx4JQGOBYBm4y34Np4.-729258796.tmp
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/pushservice__local_stat_cache.json
/data/data/####/refresh_date.xml
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/tdata_BAI450
/data/data/####/tdata_BAI450.jar
/data/data/####/ttsdata-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/wKKLLEAEBnqJF37KlZEGV3F1bVk.-450159712.tmp
/data/data/####/webview.db-journal
/data/media/####/-1042204469
/data/media/####/-1276737903
/data/media/####/-1371979915
/data/media/####/-1634289563
/data/media/####/-1736809389
/data/media/####/-447649279
/data/media/####/-88430431
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/.nomedia
/data/media/####/105811635
/data/media/####/1180819953
/data/media/####/1343739493
/data/media/####/1461218883
/data/media/####/1560650101
/data/media/####/1918730225
/data/media/####/281234433
/data/media/####/301072561
/data/media/####/393861315
/data/media/####/407853659
/data/media/####/550238913
/data/media/####/6.0.5.apk
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/app.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/journal
/data/media/####/journal.tmp
/data/media/####/logs.txt
/data/media/####/net.xinhuamm.mainclient.bin
/data/media/####/net.xinhuamm.mainclient.db
/data/media/####/tdata_BAI450
/data/media/####/test.log

Miscellaneous:

Executes the following shell scripts:

/system/bin/sh -c getprop
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GetuiPushService 25350 300 0
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
getprop
sh <Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GetuiPushService 25350 300 0

Loads the following dynamic libraries:

BDSpeechDecoder_V1
Bugly
bd_etts
bdtts
getuiext2
gifimage
gnustl_shared
imagepipeline
libjiagu
qupai-media-jni
qupai-media-thirdparty

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-ECB-PKCS5Padding
AES-ECB-ZeroBytePadding
AES-GCM-NoPadding
DES-CBC-PKCS5Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding
desede-ECB-PKCS5Padding

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-GCM-NoPadding
DES

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.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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