Adware.Gexin.17157

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) q####.c####.l####.####.com:80
TCP(HTTP/1.1) c.d####.mob.com:80
TCP(HTTP/1.1) m.d####.mob.com:80
TCP(HTTP/1.1) na61-####.wagbr####.ali####.####.com:80
TCP(HTTP/1.1) ada####.m.ta####.com:80
TCP(HTTP/1.1) www.dianm####.com:80
TCP(HTTP/1.1) hk.wagbr####.non####.####.com:80
TCP(HTTP/1.1) a####.exc.mob.com:80
TCP(HTTP/1.1) s####.e.qq.com:80
TCP(HTTP/1.1) ad####.m.ta####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) api.q####.com:80
TCP(HTTP/1.1) imgc####.qq.com.####.com:80
TCP(HTTP/1.1) mi.g####.qq.com:80
TCP(HTTP/1.1) oth.up####.mdt.####.com:8080
TCP(HTTP/1.1) a####.a####.m.####.com:80
TCP(TLS/1.0) et2-na6####.wagbr####.ali####.####.com:443
TCP(TLS/1.0) regi####.xm####.xi####.com:443
TCP(TLS/1.0) sh.wagbr####.ta####.com:443
TCP(TLS/1.0) msg.umengc####.com:443
TCP 1####.205.163.94:80
TCP 1####.205.160.76:443
TCP sdk.o####.t####.####.com:5224
TCP cm-1####.ig####.com:5225

DNS requests:

7j####.c####.z0.####.com
a####.exc.mob.com
a####.m.ta####.com
ad####.m.ta####.com
ada####.m.ta####.com
ag####.m.ta####.com
api.q####.com
bcfeed####.ta####.com
c-h####.g####.com
c.d####.mob.com
cm-1####.ig####.com
ent.c####.clo####.com
imgc####.qq.com
locksc####.mob####.cn
log.u####.com
m.d####.mob.com
mi.g####.qq.com
msg.umengc####.com
oth.up####.mdt.####.com
regi####.xm####.xi####.com
s####.e.qq.com
s####.u####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
umengj####.m.ta####.com
wb.110.ta####.com
www.dianm####.com
y####.al####.com

HTTP GET requests:

ad####.m.ta####.com/rest/gc2?ak=####&av=####&c=####&d=####&sv=####&t=###...
api.q####.com/api/android/verify3?key=####&ver=HbN####
api.q####.com/api/android/verify3?key=####&ver=Iex####
api.q####.com/api/android/verify3?key=####&ver=O1K####
api.q####.com/api/android/verify3?key=####&ver=RUn####
api.q####.com/api/android/verify3?key=####&ver=RxJ####
api.q####.com/api/android/verify3?key=####&ver=goM####
api.q####.com/jar/jfq3.2.5.jar
imgc####.qq.com.####.com/qzone/biz/gdt/mod/android/AndroidAllInOne/progu...
m.d####.mob.com/v2/cconf?appkey=####&plat=####&apppkg=####&appver=####&n...
mi.g####.qq.com/gdt_mview.fcg?posw=####&posh=####&count=####&r=####&data...
q####.c####.l####.####.com/config/hz-hzv6.conf
q####.c####.l####.####.com/tdata_BAI450
q####.c####.l####.####.com/tdata_Cye094
q####.c####.l####.####.com/tdata_vGW305

HTTP POST requests:

a####.a####.m.####.com/amdc/mobileDispatch?appkey=####&platform=####&v=#...
a####.exc.mob.com/errconf
ada####.m.ta####.com/rest/sur?ak=####&av=####&c=####&v=####&s=####&d=###...
c-h####.g####.com/api.php?format=####&t=####
c.d####.mob.com/v2/cdata
hk.wagbr####.non####.####.com/saveWb.json
na61-####.wagbr####.ali####.####.com/api/update.do
oth.up####.mdt.####.com:8080/beacon/vercheck
s####.e.qq.com/activate
s####.e.qq.com/getad
s####.e.qq.com/launch
s####.e.qq.com/msg
sdk.o####.p####.####.com/api.php?format=####&t=####
www.dianm####.com/diancai/wall.do

File system changes:

Creates the following files:

/data/anr/traces.txt
/data/data/####/.jg.ic
/data/data/####/.lock
/data/data/####/0a231bd8575dcf72.txt
/data/data/####/135a920b7a91504b.lock
/data/data/####/1565709181955.log
/data/data/####/1d77ea041509fe06.lock
/data/data/####/21c22f492aba3de8.lock
/data/data/####/725a9ca2b85bc222.lock
/data/data/####/8ef9c457b3bbb403.lock
/data/data/####/930a31b34bd52c08.lock
/data/data/####/ACCS_BIND.xml
/data/data/####/ACCS_SDK.xml
/data/data/####/ACCS_SDK_CHANNEL.xml
/data/data/####/AGOO_BIND.xml
/data/data/####/Agoo_AppStore.xml
/data/data/####/Alvin2.xml
/data/data/####/ContextData.xml
/data/data/####/DaemonServer
/data/data/####/GDTSDK.db
/data/data/####/GDTSDK.db-journal
/data/data/####/MessageStore.db
/data/data/####/MessageStore.db-journal
/data/data/####/MsgLogStore.db
/data/data/####/MsgLogStore.db-journal
/data/data/####/SGMANAGER_DATA2.tmp
/data/data/####/SMSSDK_2.xml
/data/data/####/SMSSDK_VCODE_1.xml
/data/data/####/TestinAgent.db
/data/data/####/TestinAgent.db-journal
/data/data/####/TestinAgent.xml
/data/data/####/ThrowalbeLog.db
/data/data/####/ThrowalbeLog.db-journal
/data/data/####/UTCommon.xml
/data/data/####/ab914f43b8296c2c.lock
/data/data/####/accs.db
/data/data/####/accs.db-journal
/data/data/####/agoo.pid
/data/data/####/ap.Lock
/data/data/####/beacontsa_cover.xml
/data/data/####/beacontsa_cover_check.lock
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/com.anroid.mylockscreen_preferences.xml
/data/data/####/devCloudSetting.cfg
/data/data/####/devCloudSetting.sig
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdt_plugin.dex
/data/data/####/gdt_plugin.jar
/data/data/####/gdt_plugin.jar.sig
/data/data/####/gdt_suid
/data/data/####/geofencing.db
/data/data/####/geofencing.db-journal
/data/data/####/getui_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/jfq.dex
/data/data/####/jfq.jar
/data/data/####/jfq.tmp
/data/data/####/libjiagu.so
/data/data/####/libsgmain_318211200000.dex
/data/data/####/libsgmainso-5.1.81.so.tmp
/data/data/####/lock.lock
/data/data/####/lockscreen.xml
/data/data/####/message_accs_db
/data/data/####/message_accs_db-journal
/data/data/####/mipush.xml
/data/data/####/mipush_extra.xml
/data/data/####/mipush_extra.xml (deleted)
/data/data/####/mob_commons_1.xml
/data/data/####/mob_commons_1.xml (deleted)
/data/data/####/mob_sdk_exception_1.xml
/data/data/####/mob_sdk_exception_1.xml.bak
/data/data/####/multidex.version.xml
/data/data/####/out_system.xml
/data/data/####/push.pid
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/sdkCloudSetting.cfg
/data/data/####/sdkCloudSetting.sig
/data/data/####/sp.lock
/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/####/update_lc
/data/data/####/ut.db
/data/data/####/ut.db-journal
/data/data/####/webview.db
/data/data/####/webview.db-journal
/data/data/####/webviewCookiesChromium.db
/data/data/####/webviewCookiesChromium.db-journal
/data/data/####/webviewCookiesChromiumPrivate.db
/data/data/####/webviewCookiesChromiumPrivate.db-journal
/data/data/####/ywPrefsTools.xml
/data/data/####/zy_init.xml
/data/media/####/.al
/data/media/####/.dh-journal
/data/media/####/.dhlock
/data/media/####/.dic_lock
/data/media/####/.dk
/data/media/####/.duid
/data/media/####/.globalLock
/data/media/####/.nulal
/data/media/####/.nulplt
/data/media/####/.pkg_lock
/data/media/####/.rcTag
/data/media/####/.rc_lock
/data/media/####/.slock
/data/media/####/6c709c11d2d46a7b
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/Logcat-2019-08-13.log
/data/media/####/accs_election
/data/media/####/app.db
/data/media/####/com.anroid.mylockscreen.bin
/data/media/####/com.anroid.mylockscreen.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/dd7893586a493dc3
/data/media/####/deviceToken
/data/media/####/hid.dat
/data/media/####/inapp_20190813.log
/data/media/####/lock.dat
/data/media/####/log.lock
/data/media/####/log1.txt

Miscellaneous:

Executes the following shell scripts:

<Package Folder>/files/DaemonServer -s <Package Folder>/lib/ -n runServer -p startservice -n <Package>/com.taobao.accs.ChannelService --user 0 -f <Package Folder> -t 600 -c agoo.pid -P <Package Folder> -K 1009527 -U tb_accs_eudemon_1.1.3 -L http://agoodm.m.taobao.com/agoo/report -D {"package":"<Package>","appKey":"umeng:55652c7967e58ed6fa001afd","utdid":"XVLTb2UNypIDAGdzx1FFsbhh","sdkVersion":"212"} -I agoodm.m.taobao.com -O 80 -T -Z
app_process /system/bin com.android.commands.pm.Pm list packages
chmod 500 <Package Folder>/files/DaemonServer
chmod 755 <Package Folder>/.jiagu/libjiagu.so
grep 2793
logcat -s lockscreen
logcat -t 100 -v time
pm list packages
ps
sh

Loads the following dynamic libraries:

NativeCrash
getuiext2
libjiagu
neh
sgmainso-5.1
tnet-3.1
ut_c_api

Uses the following algorithms to encrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-PKCS7Padding
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-NoPadding
AES-CBC-PKCS5Padding
AES-CBC-PKCS7Padding
AES-ECB-NoPadding
AES-ECB-PKCS7Padding
RSA-ECB-PKCS1Padding

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 accounts associated with the device (Google, Facebook, etc.).

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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