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Android.Gexin.1578

Added to the Dr.Web virus database: 2022-04-06

Virus description added: 2022-04-06

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Gexin.1

Network activity:

Connects to:

UDP(DNS) 8####.8.4.4:53
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) cdn-sdk####.g####.com.####.com:80
TCP(HTTP/1.1) chinawe####.c####.l####.####.com:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) loc.map.b####.com:80
TCP(HTTP/1.1) a.appj####.com:80
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
UDP(NTP) 2.and####.p####.####.org:123
TCP(TLS/1.0) rr2---s####.g####.com:443
TCP(TLS/1.0) www.gst####.com:443
TCP(TLS/1.0) 1####.217.168.238:443
TCP(TLS/1.0) rr4---s####.g####.com:443
TCP(TLS/1.0) rr5---s####.g####.com:443
TCP(TLS/1.0) and####.google####.com:443
TCP(TLS/1.0) android####.go####.com:443
TCP(TLS/1.2) 2####.58.208.99:443
TCP(TLS/1.2) 2####.58.214.10:443
UDP 2####.58.214.10:443
UDP rr4---s####.g####.com:443
TCP sdk.o####.t####.####.com:5224
UDP and####.google####.com:443
TCP cm-1####.g####.com:5225

DNS requests:

2.and####.p####.####.org
7j####.c####.z0.####.com
a.appj####.com
and####.a####.go####.com
and####.google####.com
android####.go####.com
c-h####.g####.com
c.sz.gt.####.8
c.sz.gt.####.com
cdn-sdk####.g####.com
cm-1####.g####.com
loc.map.b####.com
m####.go####.com
m####.patton####.com
p####.google####.com
rr2---s####.g####.com
rr4---s####.g####.com
rr4---s####.g####.com
rr5---s####.g####.com
sdk.c####.g####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
www.gst####.com

HTTP GET requests:

cdn-sdk####.g####.com.####.com/tdata_myE644
chinawe####.c####.l####.####.com/config/hzv9.conf
ti####.c####.l####.####.com/tdata_qHR433

HTTP POST requests:

a.appj####.com/ad-service/ad/mark
a.appj####.com/jiagu/check/upgrade
c-h####.g####.com/api.php?format=####&t=####
loc.map.b####.com/offline_loc
loc.map.b####.com/sdk.php
sdk.o####.p####.####.com/api.php?format=####&t=####

File system changes:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/classes.dex
/data/data/####/classes.oat
/data/data/####/classes2.dex
/data/data/####/firll.dat
/data/data/####/init.pid
/data/data/####/init_c.pid
/data/data/####/jg_app_update_settings_random.xml
/data/data/####/libjiagu.so
/data/data/####/ofl.config
/data/data/####/ofl_location.db
/data/data/####/ofl_location.db-journal
/data/data/####/ofl_statistics.db
/data/data/####/ofl_statistics.db-journal
/data/data/####/proc_auxv
/data/data/####/push.pid
/data/data/####/pushg.db-journal
/data/data/####/pushsdk.db-journal
/data/data/####/qihoo_jiagu_crash_report.xml
/data/data/####/run.pid
/data/data/####/share_data.xml
/data/data/####/tdata_myE644
/data/data/####/tdata_myE644.dex
/data/data/####/tdata_myE644.dex.flock (deleted)
/data/data/####/tdata_myE644.jar
/data/media/####/.nomedia
/data/media/####/app.db
/data/media/####/com.igexin.sdk.deviceId.db
/data/media/####/com.pattonsoft.carwash.db
/data/media/####/conlts.dat
/data/media/####/ller.dat
/data/media/####/ls.db
/data/media/####/ls.db-journal
/data/media/####/tdata_myE644
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.dat

Miscellaneous:

Executes the following shell scripts:

chmod 755 <Package Folder>/.jiagu/libjiagu.so

Loads the following dynamic libraries:

libgetuiext2
libjiagu
liblocSDK6a

Uses the following algorithms to encrypt data:

RSA-NONE-OAEPWithSHA1AndMGF1Padding

Accesses the ITelephony private interface.

Uses special library to hide executable bytecode.

Gets information about location.

Gets information about phone status (number, IMEI, etc.).

Gets information about installed apps.

Displays its own windows over windows of other apps.

Requests the system alert window permission.

Curing recommendations

Android

If the mobile device is operating normally, download and install Dr.Web for Android Light. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
- Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
- Once you have activated safe mode, install the Dr.Web для Android Light onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
- Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android

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