Adware.Gexin.2038

Technical information

Malicious functions:

Executes code of the following detected threats:

Adware.Gexin.2.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) hul####.you####.com:80
TCP(TLS/1.0) api.map.b####.com:443
TCP(TLS/1.0) loc.map.b####.com:443
TCP(TLS/1.0) 1####.217.20.78:443

DNS requests:

api.map.b####.com
hul####.you####.com
loc.map.b####.com

HTTP POST requests:

hul####.you####.com/(unknown)/sys/clientActivation.gy?oh=####&ov=####
hul####.you####.com/(unknown)/sys/initApp.gy?oh=####&ov=####
hul####.you####.com/(unknown)/sys/uploadDeviceId.gy?oh=####&ov=####
hul####.you####.com/sys/log.gy?app=####&log_version=####

Modified file system:

Creates the following files:

/data/data/####/.jg.ic
/data/data/####/account.db
/data/data/####/account.db-journal
/data/data/####/authStatus_com.huizheng.tcyyhz.xml
/data/data/####/authStatus_com.huizheng.tcyyhz;GuardService.xml
/data/data/####/authStatus_com.huizheng.tcyyhz;remote.xml
/data/data/####/com.huizheng.tcyyhz_dna.xml
/data/data/####/com.huizheng.tcyyhz_preferences.xml
/data/data/####/com.huizheng.tcyyhz_preferences.xml.bak
/data/data/####/com.huizheng.tcyyhz_prefs.xml
/data/data/####/com.huizheng.tcyyhz_prefs.xml.bak
/data/data/####/du.lock
/data/data/####/firll.dat
/data/data/####/hst.db
/data/data/####/hst.db-journal
/data/data/####/libcuid.so
/data/data/####/libjiagu1652901010.so
/data/data/####/multidex.version.xml
/data/data/####/p.l
/data/data/####/shuzilm.db
/data/data/####/ums_agent_online_setting_com.huizheng.tcyyhz.xm...leted)
/data/data/####/ums_agent_online_setting_com.huizheng.tcyyhz.xml
/data/data/####/ums_agent_online_setting_com.huizheng.tcyyhz.xml.bak
/data/media/####/-16083707611796208575
/data/media/####/._android.dat
/data/media/####/._driver.dat
/data/media/####/._system.dat
/data/media/####/.aio.dat
/data/media/####/.cuid
/data/media/####/.cuid2
/data/media/####/1535824345360
/data/media/####/1535824345373
/data/media/####/1563592924-1902887539
/data/media/####/1563592924-579986820
/data/media/####/_android.dat
/data/media/####/_driver.dat
/data/media/####/_system.dat
/data/media/####/aio.dat
/data/media/####/yoh.dat
/data/media/####/yol.dat
/data/media/####/yom.dat

Miscellaneous:

Executes next shell scripts:

chmod 755 <Package Folder>/.jiagu/libjiagu1652901010.so
date
df
id
ls /dev/socket
ls /system/fonts
mkdir -p <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/
ps
service call iphonesubinfo 1
sh -c cat
sh -c cat /proc/meminfo
sh -c cat /proc/sys/kernel/osrelease
sh -c cat /proc/sys/kernel/random/boot_id
sh -c cat /proc/sys/kernel/random/uuid
sh -c cat /proc/uptime
sh -c cat /sys/block/mmcblk0/device/cid
sh -c cat /sys/class/net/eth0/address
sh -c cat /sys/class/net/eth1/address
sh -c cat /sys/class/net/eth2/address
sh -c cat <SD-Card>/../../../../../..<SD-Card>/._android.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/._driver.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/._system.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/.aio.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_driver.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_system.dat
sh -c cat <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/aio.dat
sh -c cd /proc/;cat cpuinfo
sh -c cd /proc/net/ && cat arp
sh -c cd /proc/self/;cat status
sh -c cd /sys/class/net/eth0/ && cat address
sh -c cd /sys/class/net/wlan0/ && cat address
sh -c echo MEY4QTU4RkVEMDU2ODhCNkIwNkNDNzg1MjQ4REYxQzg4NEM1Qzg6MDc4QUI3OjBBQjE0MA== > <SD-Card>/../../../../../..<SD-Card>/._driver.dat
sh -c echo MEY4QTU4RkVEMDU2ODhCNkIwNkNDNzg1MjQ4REYxQzg4NEM1Qzg6MDc4QUI3OjBBQjE0MA== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_driver.dat
sh -c echo OTM5N0Y3NzA4M0UwRUE5RUFBNUVGM0Y3QTUzNTMwODgxNTM1ODI0MzQ3 > <SD-Card>/../../../../../..<SD-Card>/.aio.dat
sh -c echo OTM5N0Y3NzA4M0UwRUE5RUFBNUVGM0Y3QTUzNTMwODgxNTM1ODI0MzQ3 > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/aio.dat
sh -c echo OTc0QjA1RDEzRDgwOUE2RUUxMzc3MkIyRUJFNDJDNTExMEQ3RjQ6RTM5QzUxOkZDOTc5Nw== > <SD-Card>/../../../../../..<SD-Card>/._android.dat
sh -c echo OTc0QjA1RDEzRDgwOUE2RUUxMzc3MkIyRUJFNDJDNTExMEQ3RjQ6RTM5QzUxOkZDOTc5Nw== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/._system.dat
sh -c echo QjU4NUVFQTBCMEQ3MkI1Mzg5QjM5ODQ1MzQ1NUNFMDMzQzdBQjU6ODg2Qzc4OjI3RERDMw== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_system.dat