Adware.Gexin.3741

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) a####.mywan####.com:80
TCP(HTTP/1.1) aexcep####.b####.qq.com:8012
TCP(HTTP/1.1) t####.c####.q####.####.com:80
TCP(HTTP/1.1) and####.b####.qq.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) mywan####.com:80
TCP(TLS/1.0) 2####.58.212.142:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224

DNS requests:

7j####.c####.z0.####.com
a####.mywan####.com
a####.u####.com
aexcep####.b####.qq.com
and####.b####.qq.com
and####.mywan####.com
c####.g####.ig####.com
c-h####.g####.com
mywan####.com
pub-####.qin####.com
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net

HTTP GET requests:

a####.mywan####.com/api/wxname
mywan####.com/upload/ad_1501822575556.png
mywan####.com/upload/adminImage/20170922/02e22d088ba93d6095dd6be47a1785b...
mywan####.com/upload/adminImage/20170922/3a9cd5807e2ca998e7d225fc1b2194b...
mywan####.com/upload/adminImage/20170922/576f1d9747259c305ec915edfcc2b9a...
mywan####.com/upload/adminImage/20170922/5963aa68329d5ec11d3b6b4791a839a...
mywan####.com/upload/adminImage/20170922/9f075d3483bc59771de4e25bdff850c...
mywan####.com/upload/adminImage/20170922/c1385870527696bfa4d9121dcb5c444...
mywan####.com/upload/adminImage/20170922/eff91e8bcdc963be6b78eb34c442403...
mywan####.com/upload/adminImage/20170922/fb138e0856d5740759d3b085bb96098...
mywan####.com/upload/adminImage/20180312/b81b606b8b5af33f2bf51a6dc3e3401...
mywan####.com/upload/adminImage/20180525/aeaaced6c0ad5011ccda42e6b0f4f32...
mywan####.com/upload/adminImage/20180702/07a2c13e62a8efe2d6131bc00392faa...
mywan####.com/upload/adminImage/20180807/82fe7ed80cdf527fdcf1d280dfc2fc0...
mywan####.com/upload/adminImage/20180813/38da39fd83d5ef259c53f97c0ef7169...
mywan####.com/upload/adminImage/20180813/6a3e0c9132a33468ba23d5f45b6959a...
mywan####.com/upload/adminImage/20180813/aedd61e6794cb7500213aa0d3f4a9db...
mywan####.com/upload/adminImage/20180820/4a25715de80f606a3630627293539b0...
mywan####.com/upload/adminImage/20180906/7e56434f3665d7806b45c220a810a89...
mywan####.com/upload/adminImage/20180920/5590356646931f1750f4d169a2720b0...
mywan####.com/upload/adminImage/20180920/bfd90b104da5c44863cf5cc7fc4e840...
mywan####.com/upload/adminImage/20180929/d265072f0049aacebd2dc2eaff82820...
mywan####.com/upload/adminImage/20181008/17a844f41df335cd8676ed2eabfc915...
mywan####.com/upload/adminImage/20181011/b760392af3ca1e4b7324217fbc2eaac...
mywan####.com/upload/adminImage/20181012/b53399b8bf40fa9b0f82ceadd61523f...
mywan####.com/upload/adminImage/20181016/42da15c3486a037ee41860ebf8885d4...
mywan####.com/upload/adminImage/20181016/539f64164c4e2478cba16854efde17b...
mywan####.com/upload/adminImage/20181017/983e71e3119eb8e8a30a674acea1b92...
t####.c####.q####.####.com/config/hz-hzv3.conf
t####.c####.q####.####.com/tdata_EDT356
t####.c####.q####.####.com/tdata_YYn966
t####.c####.q####.####.com/tdata_eOt091

HTTP POST requests:

a####.mywan####.com/api/ad/mid
a####.mywan####.com/api/ad/top
a####.mywan####.com/api/app/config
a####.mywan####.com/api/app/info
a####.mywan####.com/api/app/sms/switch
a####.mywan####.com/api/rec/search/list
a####.u####.com/app_logs
aexcep####.b####.qq.com:8012/rqd/async
and####.b####.qq.com/rqd/async
c-h####.g####.com/api.php?format=####&t=####
mywan####.com/api/androidReport.php
mywan####.com/api/info/list
mywan####.com/api/navi/list
mywan####.com/api/rec/borrow/detail
mywan####.com/api/rec/frontpage
sdk.o####.p####.####.com/api.php?format=####&t=####

Modified file system:

Creates the following files:

/data/data/####/.imprint
/data/data/####/18e110a18a3a
/data/data/####/1XmT0RIHyRjk0jouyEDIOFUG720.1270841852.tmp
/data/data/####/2RESM0tuFQK13llejybYgkBCAE0.-2127525481.tmp
/data/data/####/2vGfbb3kPwCJTLn-HttsP-evXR8.-280182918.tmp
/data/data/####/34XTymKttB-pKiBxRrWtslzckMc.1398461140.tmp
/data/data/####/4Wl4rWDI1s6fGqO0jXb1lyM6jxI.90951897.tmp
/data/data/####/4xATJ4UO1qDJmBfYwNn-LdT40U8.543447250.tmp
/data/data/####/6YTFrxzAFDi4kTs8Kbvat7XUDm0.-646333249.tmp
/data/data/####/7lAiy4OZW6w0NygiLB7Hj8zdm7Q.-1644916194.tmp
/data/data/####/Bt7mUCpVc65n6Ny68YUMQw3Kwbc.-815421867.tmp
/data/data/####/EDJ-D42H6O2tG1_d7KvAMa7vstI.1718062582.tmp
/data/data/####/IdRuSlj2_hMCSIPqBOjdKoHsM7A.1352645450.tmp
/data/data/####/JAWtK9ijvtkKE5WRTAShfKwarYg.1366149028.tmp
/data/data/####/MLtjsKSbA6DBBfqZ4cemXNIlT3A.-1008829196.tmp
/data/data/####/MlZn7jJXaut7FJHm1Zk7lvpd4JA.140664759.tmp
/data/data/####/O627OC1UP1wW4IvuSLP3u3CfHUU.-1369450283.tmp
/data/data/####/PJu9e-HO3wxZuR09p1UC6WUtPgA.-464523479.tmp
/data/data/####/Pixg9ldwhRMkJg1RSzqUKMAYbsE.-861007739.tmp
/data/data/####/QadVEmrwuTeCgrxlbmLJ_ay7ezM.-78213119.tmp
/data/data/####/VtklI0kAseJM5Q2S9G233ht2rqw.1600750898.tmp
/data/data/####/XKuzFS2u_FSVMwt5Bir4A8s7ghA.660186482.tmp
/data/data/####/YKLi29tMPjxXc-ZrnE-dmSxUBE8.1442839288.tmp
/data/data/####/bugly_db_legu-journal
/data/data/####/cc.db
/data/data/####/cc.db-journal
/data/data/####/cn.toput.wangcai_preferences.xml
/data/data/####/dso_deps
/data/data/####/dso_lock
/data/data/####/dso_manifest
/data/data/####/dso_state
/data/data/####/exchangeIdentity.json
/data/data/####/exid.dat
/data/data/####/gdaemon_20161017
/data/data/####/getui_sp.xml
/data/data/####/gnqpX8csrEl7fpJnsWaLavueJ14.-150852416.tmp
/data/data/####/gx_sp.xml
/data/data/####/init.pid
/data/data/####/init_c1.pid
/data/data/####/j6rrhv_Fk2kTtQFQegKQWXr1HW0.-387040111.tmp
/data/data/####/koxZto8lXU4RIGpJYAZ1nqWmHsM.1599741594.tmp
/data/data/####/libnfix.so
/data/data/####/libshella-2.9.0.2.so
/data/data/####/local_crash_lock
/data/data/####/mix.dex
/data/data/####/native_record_lock
/data/data/####/push.pid
/data/data/####/pushext.db-journal
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/run.pid
/data/data/####/security_info
/data/data/####/solrBhfjK0lgAOfzRrIbwkZA_Io.1382748087.tmp
/data/data/####/tdata_YYn966
/data/data/####/tdata_YYn966.jar
/data/data/####/tdata_eOt091
/data/data/####/tdata_eOt091.jar
/data/data/####/ua.db
/data/data/####/ua.db-journal
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/wGKpClOROBi-5X76GdG6tMyVWmc.-231086344.tmp
/data/data/####/yu2zHUEms2qGEEf0r3wiZIOk378.-1295144138.tmp
/data/media/####/app.db
/data/media/####/cn.toput.wangcai.bin
/data/media/####/cn.toput.wangcai.db
/data/media/####/com.getui.sdk.deviceId.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/tdata_YYn966
/data/media/####/tdata_eOt091
/data/media/####/test.log

Miscellaneous:

Executes next shell scripts:

/system/bin/sh -c getprop ro.aa.romver
/system/bin/sh -c getprop ro.board.platform
/system/bin/sh -c getprop ro.build.fingerprint
/system/bin/sh -c getprop ro.build.nubia.rom.name
/system/bin/sh -c getprop ro.build.rom.id
/system/bin/sh -c getprop ro.build.tyd.kbstyle_version
/system/bin/sh -c getprop ro.build.version.emui
/system/bin/sh -c getprop ro.build.version.opporom
/system/bin/sh -c getprop ro.gn.gnromvernumber
/system/bin/sh -c getprop ro.lenovo.series
/system/bin/sh -c getprop ro.lewa.version
/system/bin/sh -c getprop ro.meizu.product.model
/system/bin/sh -c getprop ro.miui.ui.version.name
/system/bin/sh -c getprop ro.vivo.os.build.display.id
/system/bin/sh -c type su
<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.android.service.PushService 24603 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 700 <Package Folder>/tx_shell/libnfix.so
chmod 700 <Package Folder>/tx_shell/libshella-2.9.0.2.so
chmod 700 <Package Folder>/tx_shell/libufix.so
getprop ro.aa.romver
getprop ro.board.platform
getprop ro.build.fingerprint
getprop ro.build.nubia.rom.name
getprop ro.build.rom.id
getprop ro.build.tyd.kbstyle_version
getprop ro.build.version.emui
getprop ro.build.version.opporom
getprop ro.gn.gnromvernumber
getprop ro.lenovo.series
getprop ro.lewa.version
getprop ro.meizu.product.model
getprop ro.miui.ui.version.name
getprop ro.vivo.os.build.display.id
getprop ro.yunos.version
logcat -d -v threadtime
mount

Loads the following dynamic libraries:

Bugly
getuiext2
libimagepipeline
libnfix
libshella-2.9.0.2
libufix
nfix
ufix

Uses the following algorithms to encrypt data:

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

Uses the following algorithms to decrypt data:

AES-CBC-PKCS7Padding
AES-GCM-NoPadding

Uses special library to hide executable bytecode.

Gains access to network information.

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

Gains access to information about installed 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

Free trial