Adware.Gexin.1301

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) i.sn####.com:80
TCP(HTTP/1.1) p.s.3####.cn:80
TCP(HTTP/1.1) c####.v.tvfa####.com:80
TCP(HTTP/1.1) md.ope####.360.cn:80
TCP(HTTP/1.1) p7.q####.com:80
TCP(HTTP/1.1) p8.q####.com:80
TCP(HTTP/1.1) s.36####.com:80
TCP(HTTP/1.1) www.a.sh####.com:80
TCP(HTTP/1.1) and####.api.36####.com:80
TCP(HTTP/1.1) p0.q####.com:80
TCP(TLS/1.0) sh.wagbr####.alibaba####.com:443
TCP(TLS/1.0) ssp.v####.com.####.com:443
TCP(TLS/1.0) bj####.ads.oppomo####.com:443
TCP 1####.163.235.101:443

DNS requests:

and####.api.36####.com
api####.me####.com
bj####.ads.oppomo####.com
c####.v.tvfa####.com
i.sn####.com
md.ope####.360.cn
p.s.3####.cn
p0.q####.com
p7.q####.com
p8.q####.com
plb####.u####.com
s####.s.360.cn
s.36####.com
sdkc####.e.360.cn
ssp.v####.com.cn
u####.u####.com
www.b####.com
x####.v.360.cn

HTTP GET requests:

and####.api.36####.com/cloud?ss=####&method=####&ver=####&ch=####&token=...
and####.api.36####.com/dot/?method=####&type=####&ss=####&token=####&ver...
and####.api.36####.com/welcome/?method=####&ss=####&token=####&ver=####&...
c####.v.tvfa####.com/all
i.sn####.com/api/ad/union/sdk/config/
p0.q####.com/t01c719df2d2235d351.jpg
p7.q####.com/t0100cb67fc7d386ad8.jpg
p8.q####.com/t011ef0d406f8e9d7d9.jpg
s.36####.com/android_token_collect.gif?u=####&tn=####&ss=####&token=####...
www.a.sh####.com/

HTTP POST requests:

md.ope####.360.cn/list/get?product=####&version=####
p.s.3####.cn/update/update.php?p=####

Modified file system:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/GlobalFlag.xml
/data/data/####/QH_DeviceSDK.xml
/data/data/####/QH_SDK_M2.xml
/data/data/####/QH_SDK_UserData26657d5ff9020d2abefe558796b99584.xml
/data/data/####/Y29tLnFpaG9vLnZpZGVv.tick.lock
/data/data/####/acs_st.db
/data/data/####/acs_st.db-journal
/data/data/####/acs_st_config.ini
/data/data/####/ad_map_ad_configs.xml
/data/data/####/ad_map_config_priority.xml
/data/data/####/ad_map_gdt.xml
/data/data/####/ad_map_oppo.xml
/data/data/####/ad_map_torch.xml
/data/data/####/ad_map_toutiao.xml
/data/data/####/cloud_switch_cache
/data/data/####/com.oppo.acs.st.prefs.xml
/data/data/####/com.qihoo.video_dna.xml
/data/data/####/com.qihoo.video_preferences.xml
/data/data/####/com.qihoo.video_prefs.xml
/data/data/####/core_update
/data/data/####/core_update_locker
/data/data/####/device_collector
/data/data/####/device_collector_locker
/data/data/####/du.lock
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/finalcore.dex
/data/data/####/finalcore.jar
/data/data/####/global.jar
/data/data/####/huajiao_plugin.apk
/data/data/####/i==1.2.0&&4.5.3_1534324107151_envelope.log
/data/data/####/info.xml
/data/data/####/key_dnscache.xml
/data/data/####/libjiagu1806440176.so
/data/data/####/locker
/data/data/####/log_reupload_task
/data/data/####/log_reupload_task_locker
/data/data/####/p.l
/data/data/####/plugins.xml
/data/data/####/profile_task
/data/data/####/profile_task_locker
/data/data/####/settings.xml
/data/data/####/single_process_offlineSplash_ag5FPw5b8GUD
/data/data/####/single_process_offlineSplash_ag5FPw5b8GUD_locker
/data/data/####/splash_conf_5FPw5b8GUD
/data/data/####/torch_sdk_config.xml
/data/data/####/tt_sdk_settings.xml
/data/data/####/ttopenadsdk.xml
/data/data/####/ttopensdk.db
/data/data/####/ttopensdk.db-journal
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/uninstall_apk
/data/data/####/uninstall_apk_locker
/data/data/####/video.db
/data/data/####/video.db-journal
/data/data/####/vivo_lib_version.xml
/data/data/####/waitingDown
/data/data/####/waitingDown_locker
/data/media/####/._android.dat
/data/media/####/._system.dat
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.deviceId
/data/media/####/.duid
/data/media/####/.iddata
/data/media/####/.sfp
/data/media/####/.testf
/data/media/####/.umm.dat
/data/media/####/26657d5ff9020d2abefe558796b99584
/data/media/####/26657d5ff9020d2abefe558796b99584 (deleted)
/data/media/####/360Video.log
/data/media/####/6xC
/data/media/####/6xC (deleted)
/data/media/####/A3l
/data/media/####/A3l (deleted)
/data/media/####/Alvin2.xml
/data/media/####/CXP
/data/media/####/CXP (deleted)
/data/media/####/ContextData.xml
/data/media/####/DYv
/data/media/####/DYv (deleted)
/data/media/####/IOd
/data/media/####/IOd (deleted)
/data/media/####/RJr
/data/media/####/RJr (deleted)
/data/media/####/Sjz
/data/media/####/Sjz (deleted)
/data/media/####/Slg
/data/media/####/Slg (deleted)
/data/media/####/Tgo
/data/media/####/Tgo (deleted)
/data/media/####/XaB
/data/media/####/XaB (deleted)
/data/media/####/Xhu
/data/media/####/Xhu (deleted)
/data/media/####/YBS
/data/media/####/YBS (deleted)
/data/media/####/_android.dat
/data/media/####/_system.dat
/data/media/####/b6b79d93cb5f675eb56e09fdb8ff2017
/data/media/####/data.lock
/data/media/####/duid
/data/media/####/iJJ
/data/media/####/iJJ (deleted)
/data/media/####/mcs_msg.ini
/data/media/####/oEt
/data/media/####/oEt (deleted)
/data/media/####/rRT
/data/media/####/rRT (deleted)
/data/media/####/report.lock
/data/media/####/xJM
/data/media/####/xJM (deleted)

Miscellaneous:

Executes next 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
chmod 755 <Package Folder>/.jiagu/libjiagu1806440176.so
date
df
getprop ro.build.version.emui
getprop ro.letv.release.version
getprop ro.vivo.os.build.display.id
id
ip link
logcat -v time
ls /dev/socket
ls /sys/class/thermal
ls /system/fonts
mkdir -p <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/
ps
service call iphonesubinfo 1
sh -c cat /proc/meminfo
sh -c cat /sys/class/net/eth0/address
sh -c cd /proc/;cat cpuinfo
sh -c cd /proc/net/ && cat arp
sh -c cd /proc/self/;cat status
sh -c echo OTc0QjA1RDEzRDgwOUE2RUUxMzc3MkIyRUJFNDJDNTExMEQ3RjQ6RTM5QzUxOkZDOTc5Nw== > <SD-Card>/../../../../../..<SD-Card>/._android.dat
sh -c echo OTc0QjA1RDEzRDgwOUE2RUUxMzc3MkIyRUJFNDJDNTExMEQ3RjQ6RTM5QzUxOkZDOTc5Nw== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
sh -c echo QjE0MTAxMjg5MjlBRTQ1MzI3OTUzQTMyNTlFRDQ3NTMwNDZlNDViN2ZiOGM0ZDYxYmVkY2QwMjUzYjBiZjFlYwo= > <SD-Card>/../../../../../..<SD-Card>/.duid
sh -c echo QjE0MTAxMjg5MjlBRTQ1MzI3OTUzQTMyNTlFRDQ3NTMwNDZlNDViN2ZiOGM0ZDYxYmVkY2QwMjUzYjBiZjFlYwo= > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/duid
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/._system.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_system.dat

Loads the following dynamic libraries:

du
libjiagu1806440176
libvxproto

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

Gains access to telephone information (number, imei, etc.).

Gains access to information about installed applications.

Gains access to information about running applications.

Adds tasks to the system scheduler.

Displays its own windows over windows of other applications.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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