Adware.Gexin.9841

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) sh.wagbr####.aliyun####.com:80
TCP(HTTP/1.1) norma-e####.m####.com:80
TCP(HTTP/1.1) amdc####.m.ta####.com:80
TCP(HTTP/1.1) gray-co####.yy.com:80
TCP(HTTP/1.1) m####.h####.com:80
TCP(HTTP/1.1) crash-r####.yy.com:80
TCP(TLS/1.0) 2####.107.1.97:443
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) l####.tbs.qq.com:443
TCP(TLS/1.0) gray-co####.yy.com:443
TCP(TLS/1.0) short-y####.yy.com:443
TCP(TLS/1.0) r####.yy.com:443
TCP ope####.m.ta####.com:443

DNS requests:

a####.man.aliy####.com
amdc####.m.ta####.com
crash-r####.yy.com
gray-co####.yy.com
l####.tbs.qq.com
m####.h####.com
norma-e####.m####.com
plb####.u####.com
r####.yy.com
short-y####.yy.com
u####.u####.com
umen####.m.ta####.com
x####.yy.com

HTTP GET requests:

norma-e####.m####.com/android/exchange/getpublickey.do

HTTP POST requests:

amdc####.m.ta####.com/amdc/mobileDispatch?appkey=####&deviceId=####&plat...
crash-r####.yy.com/dau/reporting
gray-co####.yy.com/crash/reporting
gray-co####.yy.com/dau/reporting
gray-co####.yy.com/plugin/android/all
m####.h####.com/c.gif?act=####&smkdata=####&EC=####&appkey=####&item=###...
norma-e####.m####.com/push/android/external/add.do
sh.wagbr####.aliyun####.com/man/api?ak=####&s=####

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/2ea04ccf194d4515a399d7f07f76009d
/data/data/####/4af2dbccdd5b40a4b23cee788c0b24a7
/data/data/####/5e797c036d864ccfb93a8d59c624626a
/data/data/####/ACCS_BINDumeng;5c25f1aaf1f55607a70001c9.xml
/data/data/####/ACCS_SDK.xml
/data/data/####/AGOO_BIND.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/CrashDB_yym105and.xml
/data/data/####/MakeFriends_Common.xml
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db-journal
/data/data/####/MultiDex.lock
/data/data/####/UM_PROBE_DATA.xml
/data/data/####/accs.db-journal
/data/data/####/ba5355c3d0b2074d0e1eb1feee377b92.0.tmp
/data/data/####/ba5355c3d0b2074d0e1eb1feee377b92.1.tmp
/data/data/####/com.duowan.xunhuan_preferences.xml
/data/data/####/com.x.y.1.xml
/data/data/####/com.x.y.2.xml
/data/data/####/com.yy.shortpushsvc.db-journal
/data/data/####/core_info
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUyMDY2ODk3Mzg4;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUyMDY2OTA3MDI3;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUyMDY2OTE0Njkz;
/data/data/####/dW1weF9pbnRlcm5hbF8xNTUyMDY2OTI0MDc3;
/data/data/####/dW1weF9wdXNoX3JlZ2lzdGVyXzE1NTIwNjY5MDczNTI=;
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/hdcltid.xml
/data/data/####/hdcommon_default_pref.xml
/data/data/####/hdid.bck
/data/data/####/hdid_v2
/data/data/####/hdstatis_cache_4b04df0e.db-journal
/data/data/####/hdstatis_cache_9dbd321e.db-journal
/data/data/####/hduuid_v1
/data/data/####/httpdns_config_cache.xml
/data/data/####/i==1.2.0&&4.3.4_1552066897385_envelope.log
/data/data/####/i==1.2.0&&4.3.4_1552066907078_envelope.log
/data/data/####/i==1.2.0&&4.3.4_1552066914729_envelope.log
/data/data/####/i==1.2.0&&4.3.4_1552066924086_envelope.log
/data/data/####/info.xml
/data/data/####/journal.tmp
/data/data/####/libjiagu-2002540430.so
/data/data/####/makefriends.xml
/data/data/####/multidex.version.xml
/data/data/####/mz_push_preference.xml
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/table.xml
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_stat.xml
/data/data/####/tbscoreinstall.txt
/data/data/####/tbslock.txt
/data/data/####/udbauthlooog-journal
/data/data/####/um_pri.xml
/data/data/####/umdat.xml
/data/data/####/umeng_common_config.xml
/data/data/####/umeng_common_location.xml
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_message_state.xml
/data/media/####/.a.dat
/data/media/####/.adfwe.dat
/data/media/####/.cca.dat
/data/media/####/.nomedia
/data/media/####/.umm.dat
/data/media/####/2019-03-08.log.txt
/data/media/####/21776833-93d8-4c91-a1a5-3bafff0b26d7.syslog
/data/media/####/4b8ac034-8411-4934-8726-7c5e6aecaaf0_2.zip
/data/media/####/4b8ac034-8411-4934-8726-7c5e6aecaaf0_3.zip
/data/media/####/56a5b466-cb13-4703-b86c-acddcb664d81.syslog
/data/media/####/68a93668-020b-4997-a968-924bf8907dbd.syslog
/data/media/####/78f26bda-f814-4f7c-bddf-89d23a0896e9_2.zip
/data/media/####/78f26bda-f814-4f7c-bddf-89d23a0896e9_3.zip
/data/media/####/7a56c4a6-6e8f-4636-90e1-cc040be3197e.dmp
/data/media/####/7bd6bce5-b356-4235-8844-a74e574fb4d0_2.zip
/data/media/####/7bd6bce5-b356-4235-8844-a74e574fb4d0_3.zip
/data/media/####/7cbcfa73-80c6-4fa4-9c72-2fe735973c23_2.zip
/data/media/####/7cbcfa73-80c6-4fa4-9c72-2fe735973c23_3.zip
/data/media/####/8b4faeba-2e73-4ea9-b381-c410d9f3ecb0.syslog
/data/media/####/9aa0e928-e299-42a5-8d30-6928fcdd04ac.dmp
/data/media/####/9ce358d5-31a3-4d7c-babe-3d5387c7f0fd.syslog
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/Device
/data/media/####/Device_v2
/data/media/####/Global
/data/media/####/LogPath.txt
/data/media/####/bbda6686-6e58-472e-9f0c-8b452dff2a83.dmp
/data/media/####/c2039a27-9e53-4fc4-b4e0-567f5bbf4a9c.dmp
/data/media/####/config.txt
/data/media/####/d2b08ce4-1e6c-4515-b320-680ecdd98da2
/data/media/####/deviceToken
/data/media/####/e47b4a70-155c-4810-9dd4-15d455f951c2.syslog
/data/media/####/f80f84b4-9068-4c88-b7a7-bf3e995d19f6.syslog
/data/media/####/f89dec06-cb7a-4512-865d-3d3f7a7e8c47.syslog
/data/media/####/hdcltid.ini
/data/media/####/hdstatis_20190308.log
/data/media/####/hduuid_v1
/data/media/####/info.txt
/data/media/####/logs_2019_03_08_17_41_36.txt
/data/media/####/logs_2019_03_08_17_41_36.zip
/data/media/####/logs_2019_03_08_17_41_45.txt
/data/media/####/logs_2019_03_08_17_41_45.zip
/data/media/####/logs_2019_03_08_17_41_53.txt
/data/media/####/logs_2019_03_08_17_41_53.zip
/data/media/####/logs_2019_03_08_17_42_02.txt
/data/media/####/logs_2019_03_08_17_42_02.zip
/data/media/####/logs_2019_03_08_17_42_13.txt
/data/media/####/logs_2019_03_08_17_42_13.zip
/data/media/####/logs_2019_03_08_17_42_22.txt
/data/media/####/logs_2019_03_08_17_42_22.zip
/data/media/####/logs_2019_03_08_17_42_27.txt
/data/media/####/logs_2019_03_08_17_42_27.zip
/data/media/####/logs_2019_03_08_17_42_33.txt
/data/media/####/pushsvc_log.txt
/data/media/####/sysid.dat
/data/media/####/tbslog.txt
/data/media/####/yysdk_adapter-03-08-17-41.txt

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
getprop ro.product.cpu.abi
logcat -v threadtime -t 1000 -d *:D
ls -l /system/bin/su
ls /
ls /sys/class/thermal

Loads the following dynamic libraries:

DeviceIdentifier
gnustl_shared
hiidostatisjni
libjiagu-2002540430
libmakefriends-jni
makefriends-jni
tnet-3.1
udbauth-shared
yycrashreport

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
DES
RSA-ECB-NoPadding
RSA-ECB-PKCS1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
DES

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.

Gets information about running apps.

Displays its own windows over windows of other apps.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

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