Adware.Gexin.21091

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) haojiaz####.com:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) na61-####.wagbr####.ali####.####.com:80
TCP(HTTP/1.1) a####.u####.com.####.com:80
TCP(HTTP/1.1) c.appj####.com:80
TCP(HTTP/1.1) d####.c####.l####.####.com:80
TCP(HTTP/1.1) h####.opensp####.cn:80
TCP(HTTP/1.1) hk.wagbr####.non####.####.com:80
TCP(TLS/1.0) 1####.217.17.42:443
TCP(TLS/1.0) md####.google####.com:443
TCP(TLS/1.0) 1####.217.17.74:443
TCP(TLS/1.0) instant####.google####.com:443
TCP(TLS/1.0) p####.google####.com:443
TCP(TLS/1.0) android####.go####.com:443
TCP(TLS/1.2) 2####.58.208.110:443
TCP(TLS/1.2) 1####.250.179.195:443
TCP(TLS/1.2) 1####.217.17.74:443
TCP sdk.o####.t####.####.com:5224

DNS requests:

a####.u####.com
ad####.m.ta####.com
ada####.m.ta####.com
android####.go####.com
bcfeed####.ta####.com
c.appj####.com
cm-1####.g####.com
d####.opensp####.cn
h####.opensp####.cn
haojiaz####.com
instant####.google####.com
l####.tbs.qq.com
log.u####.com
m####.go####.com
md####.google####.com
p####.google####.com
s####.u####.com
s####.u####.com.####.8
sdk.c####.g####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
wb.110.ta####.com
y####.al####.com

HTTP GET requests:

d####.c####.l####.####.com/config/hzv9.conf
h####.opensp####.cn/launchconfig?t=####&p=aXZpd####
haojiaz####.com/ad/get_splash_screen.json?system=####

HTTP POST requests:

a####.u####.com.####.com/app_logs
c.appj####.com/ad/splash/stats.html
hk.wagbr####.non####.####.com/saveWb.json
l####.tbs.qq.com/ajax?c=####&k=####
na61-####.wagbr####.ali####.####.com/api/update.do

File system changes:

Creates the following files:

/data/data/####/.imprint
/data/data/####/.jg.ic
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/1619871419128.log
/data/data/####/1d77ea041509fe06.lock
/data/data/####/21c22f492aba3de8.lock
/data/data/####/8ef9c457b3bbb403.lock
/data/data/####/930a31b34bd52c08.lock
/data/data/####/Alvin2.xml
/data/data/####/Alvin2.xml.bak (deleted)
/data/data/####/ContextData.xml
/data/data/####/SGMANAGER_DATA2
/data/data/####/SGMANAGER_DATA2.tmp
/data/data/####/UTCommon.xml
/data/data/####/ad_show_time.xml
/data/data/####/ap.Lock
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/classes.dex
/data/data/####/classes.oat
/data/data/####/classes2.dex
/data/data/####/classes3.dex
/data/data/####/com.iflytek.id.xml
/data/data/####/com.iflytek.msc.xml
/data/data/####/core_info
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/first_pref.xml
/data/data/####/first_pref.xml.bak
/data/data/####/getui_sp.xml
/data/data/####/ifly_launch_lib.xml
/data/data/####/ifly_launch_lib.xml.bak
/data/data/####/iflytek_state_com.haojiazhang.activity.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/libjiagu.so
/data/data/####/libsgmain_315522000000.dex
/data/data/####/libsgmain_315522000000.dex.flock (deleted)
/data/data/####/libsgmainso-5.1.81.so
/data/data/####/lock.lock
/data/data/####/proc_auxv
/data/data/####/push.pid
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/slideLastDate.xml
/data/data/####/sp.lock
/data/data/####/tbs_download_config.xml
/data/data/####/tbs_download_config.xml.bak
/data/data/####/tbs_download_config.xml.bak (deleted)
/data/data/####/tbs_download_stat.xml.bak
/data/data/####/tbslock.txt
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_socialize.xml
/data/data/####/userinfo.xml
/data/data/####/userinfo.xml.bak
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/media/####/.2F6E2C5B63F0F83B
/data/media/####/.nomedia
/data/media/####/6c709c11d2d46a7b
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/com.haojiazhang.activity.bin
/data/media/####/dd7893586a493dc3
/data/media/####/iflyworkdir_test (deleted)
/data/media/####/tbslog.txt
/data/misc/####/primary.prof

Miscellaneous:

Executes the following shell scripts:

/system/bin/dex2oat --instruction-set=x86 --dex-file=<Package Folder>/.jiagu/classes.dex --dex-file=<Package Folder>/.jiagu/classes2.dex --dex-file=<Package Folder>/.jiagu/classes3.dex --oat-file=<Package Folder>/.jiagu/classes.oat --inline-depth-limit=0 --compiler-filter=speed
/system/bin/dex2oat --runtime-arg -classpath --runtime-arg & --instruction-set=x86 --instruction-set-features=smp,ssse3,sse4.1,sse4.2,-avx,-avx2,-lock_add,popcnt --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --dex-file=/data/user/0/<Package>/app_SGLib/libsgmain_315522000000.zip --oat-fd=56 --oat-location=/data/user/0/<Package>/app_SGLib/libsgmain_315522000000.dex --compiler-filter=speed
/system/bin/dex2oat --runtime-arg -classpath --runtime-arg & --instruction-set=x86 --instruction-set-features=smp,ssse3,sse4.1,sse4.2,-avx,-avx2,-lock_add,popcnt --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --dex-file=/data/user/0/<Package>/app_SGLib/libsgmain_315522000000.zip --oat-fd=62 --oat-location=/data/user/0/<Package>/app_SGLib/libsgmain_315522000000.dex --compiler-filter=speed
chmod 755 /data/user/0/<Package>/.jiagu/libjiagu.so
getprop ro.miui.ui.version.code
getprop ro.product.cpu.abi

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
RSA
RSA-ECB-NoPadding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding

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.).

Displays its own windows over windows of other apps.

Requests the system alert window permission.

Technologies

Terminology

Training and education

Myths

Technical information

Curing recommendations

Free trial