Android.Backdoor.846

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Backdoor.657.origin

Gains access to the ITelephony private interface.

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) ti####.c####.l####.####.com:80
TCP(HTTP/1.1) up####.sdk.jig####.cn:80
TCP(HTTP/1.1) l####.tbs.qq.com:80
TCP(HTTP/1.1) web####.is.auto####.com:80
TCP(HTTP/1.1) ap####.un####.cn:80
TCP(HTTP/1.1) ad####.m.ta####.com:80
TCP(HTTP/1.1) sdk.o####.p####.####.com:80
TCP(HTTP/1.1) 1####.254.116.117:80
TCP(HTTP/1.1) c-h####.g####.com:80
TCP(HTTP/1.1) res####.a####.com:80
TCP(HTTP/1.1) t####.qq.com:8080
TCP(HTTP/1.1) apilo####.a####.com:80
TCP(HTTP/1.1) zhg.ali####.com:80
TCP(HTTP/1.1) ope####.m.ta####.com:80
TCP(TLS/1.0) av1.x####.com:443
TCP(TLS/1.0) c####.x####.com:443
TCP(TLS/1.0) nbsdk-b####.al####.com:443
TCP(TLS/1.0) cc0####.h.cnc.####.cn:443
TCP(TLS/1.0) api.w####.com:443
TCP c####.g####.ig####.com:5225
TCP sdk.o####.t####.####.com:5224
UDP easytom####.com:19000
UDP s.j####.cn:19000
TCP t####.qq.com:80

DNS requests:

7j####.c####.z0.####.com
acs4bai####.m.ta####.com
ad####.m.ta####.com
ap####.un####.cn
api####.a####.com
api.w####.com
appon####.un####.cn
av1.x####.com
c####.g####.ig####.com
c####.x####.com
c-h####.g####.com
e####.un####.cn
easytom####.com
i.t####.com
l####.tbs.qq.com
nbsdk-b####.al####.com
pi####.qq.com
res####.a####.com
s.j####.cn
sdk.c####.ig####.com
sdk.o####.p####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.com
sdk.o####.t####.####.net
sis.j####.io
t####.qq.com
up####.sdk.jig####.cn
web####.is.auto####.com
y####.al####.com

HTTP GET requests:

ad####.m.ta####.com/rest/gc2?ak=####&av=####&c=####&d=####&sv=####&t=###...
ope####.m.ta####.com/gw-open/mtop.taobao.tbk.sdk.config/1.0/?data=####
ti####.c####.l####.####.com/config/hz-hzv3.conf
web####.is.auto####.com/appmaptile?z=####&x=####&y=####&lang=####&size=#...

HTTP POST requests:

ap####.un####.cn/?st=####&sv=####&tm=####&sid=fy0####&apn=####&ct=####&p...
apilo####.a####.com/v3/log/init
c-h####.g####.com/api.php?format=####&t=####
l####.tbs.qq.com/ajax?c=####&k=####
res####.a####.com/v3/config/resource
res####.a####.com/v3/config/resource?
sdk.o####.p####.####.com/api.php?format=####&t=####
t####.qq.com:8080/203.205.151.233:8080/
up####.sdk.jig####.cn/v1/push/sdk/postlist
zhg.ali####.com/saveWb.json

Modified file system:

Creates the following files:

<Package Folder>/.jiagu/libjiagu.so
<Package Folder>/app_SGLib/libsgmainso-5.1.81.so.tmp
<Package Folder>/app_SGLib/libsgsecuritybodyso-5.1.25.so.tmp
<Package Folder>/app_SGLib/lock.lock
<Package Folder>/app_tbs/####/core_info
<Package Folder>/app_tbs/####/tbscoreinstall.txt
<Package Folder>/app_tbs/####/tbslock.txt
<Package Folder>/databases/jpush_local_notification.db
<Package Folder>/databases/jpush_local_notification.db-journal
<Package Folder>/databases/jpush_local_notification.db-wal
<Package Folder>/databases/jpush_statistics.db
<Package Folder>/databases/jpush_statistics.db-journal
<Package Folder>/databases/jpush_statistics.db-shm (deleted)
<Package Folder>/databases/jpush_statistics.db-wal
<Package Folder>/databases/logdb.db
<Package Folder>/databases/logdb.db-journal
<Package Folder>/databases/pushext.db-journal
<Package Folder>/databases/pushg.db-journal
<Package Folder>/databases/pushsdk.db-journal
<Package Folder>/databases/ut.db
<Package Folder>/databases/ut.db-journal
<Package Folder>/databases/webview.db-journal
<Package Folder>/databases/webviewCookiesChromium.db
<Package Folder>/databases/webviewCookiesChromium.db-journal
<Package Folder>/databases/webviewCookiesChromiumPrivate.db
<Package Folder>/databases/webviewCookiesChromiumPrivate.db-journal
<Package Folder>/databases/xg_message.db
<Package Folder>/databases/xg_message.db-journal
<Package Folder>/files/####/.jg.ic
<Package Folder>/files/####/1510835229218_2076
<Package Folder>/files/####/1510835229254_2076
<Package Folder>/files/####/1510835229381_2076
<Package Folder>/files/####/1510835229824_2076
<Package Folder>/files/####/1510835230787_2098
<Package Folder>/files/####/1510835230803_2076
<Package Folder>/files/####/1510835230901_2098
<Package Folder>/files/####/1510835230966_2098
<Package Folder>/files/####/1510835231345_2128
<Package Folder>/files/####/1510835231383_2110
<Package Folder>/files/####/1510835231492_2128
<Package Folder>/files/####/1510835231501_2110
<Package Folder>/files/####/1510835231636_2128
<Package Folder>/files/####/1510835231674_2098
<Package Folder>/files/####/1510835232187_2110
<Package Folder>/files/####/1510835232499_2098
<Package Folder>/files/####/1510835232900_2076
<Package Folder>/files/####/1510835235683_2076
<Package Folder>/files/####/1510835235695_2076
<Package Folder>/files/####/1510835236052_2076
<Package Folder>/files/####/1510835294233_2076
<Package Folder>/files/####/journal
<Package Folder>/files/####/journal.tmp
<Package Folder>/files/0a231bd8575dcf72.txt
<Package Folder>/files/1d77ea041509fe06.lock
<Package Folder>/files/21c22f492aba3de8.lock
<Package Folder>/files/8ef9c457b3bbb403.lock
<Package Folder>/files/930a31b34bd52c08.lock
<Package Folder>/files/SGMANAGER_DATA2.tmp
<Package Folder>/files/ap.Lock
<Package Folder>/files/appPackageNames
<Package Folder>/files/b01e59795895
<Package Folder>/files/gdaemon_20161017
<Package Folder>/files/init.pid
<Package Folder>/files/init_c1.pid
<Package Folder>/files/jpush_stat_cache.json
<Package Folder>/files/jpush_stat_cache_history.json
<Package Folder>/files/lotuseed.apps
<Package Folder>/files/lotuseed.lock
<Package Folder>/files/lotuseed.s
<Package Folder>/files/lotuseed.task
<Package Folder>/files/push.pid
<Package Folder>/files/run.pid
<Package Folder>/files/sp.lock
<Package Folder>/files/tdata_MkX219
<Package Folder>/files/tdata_MkX219.jar
<Package Folder>/files/tdata_OWn962
<Package Folder>/files/tdata_OWn962.jar
<Package Folder>/files/timestamp
<Package Folder>/shared_prefs/.tpns.service.xml.xml
<Package Folder>/shared_prefs/.tpns.settings.xml.xml
<Package Folder>/shared_prefs/<Package>_preferences.xml
<Package Folder>/shared_prefs/AlibcLinkPartner.xml
<Package Folder>/shared_prefs/AlibcLinkPartner.xml.bak (deleted)
<Package Folder>/shared_prefs/Alvin2.xml
<Package Folder>/shared_prefs/ContextData.xml
<Package Folder>/shared_prefs/GtToken.xml
<Package Folder>/shared_prefs/JPushSA_Config.xml
<Package Folder>/shared_prefs/JgToken.xml
<Package Folder>/shared_prefs/PushData.xml
<Package Folder>/shared_prefs/TDCloudSettingsConfigF8171088DE4E...2C.xml
<Package Folder>/shared_prefs/TD_app_pefercen_profile.xml
<Package Folder>/shared_prefs/TDpref_longtime.xml
<Package Folder>/shared_prefs/TDpref_longtime0.xml
<Package Folder>/shared_prefs/TDpref_shorttime.xml
<Package Folder>/shared_prefs/TDpref_shorttime0.xml
<Package Folder>/shared_prefs/UTCommon.xml
<Package Folder>/shared_prefs/XgToken.xml
<Package Folder>/shared_prefs/aliTradeConfigSP.xml
<Package Folder>/shared_prefs/auth_sdk_device.xml
<Package Folder>/shared_prefs/cn.jpush.android.user.profile.xml
<Package Folder>/shared_prefs/cn.jpush.preferences.v2.rid.xml
<Package Folder>/shared_prefs/cn.jpush.preferences.v2.xml
<Package Folder>/shared_prefs/cn.jpush.preferences.v2.xml (deleted)
<Package Folder>/shared_prefs/device_id.xml
<Package Folder>/shared_prefs/getui_sp.xml
<Package Folder>/shared_prefs/gx_sp.xml
<Package Folder>/shared_prefs/jpush_device_info.xml
<Package Folder>/shared_prefs/last_known_location.xml
<Package Folder>/shared_prefs/lotuseed_global.xml
<Package Folder>/shared_prefs/lotuseed_main.xml
<Package Folder>/shared_prefs/screen.xml
<Package Folder>/shared_prefs/tbs_download_config.xml
<Package Folder>/shared_prefs/tbs_download_stat.xml
<Package Folder>/shared_prefs/tdid.xml
<Package Folder>/shared_prefs/tpush.shareprefs.xml
<SD-Card>/.DataStorage/ContextData.xml
<SD-Card>/.UTSystemConfig/####/Alvin2.xml
<SD-Card>/.com.taobao.dp/6c709c11d2d46a7b
<SD-Card>/.com.taobao.dp/dd7893586a493dc3
<SD-Card>/.com.taobao.dp/hid.dat
<SD-Card>/.system/lotuseed.devid
<SD-Card>/.tcookieid
<SD-Card>/Amap/####/10_6_3.dat
<SD-Card>/Amap/####/10_6_3.idx
<SD-Card>/Android/####/.nomedia
<SD-Card>/Android/####/journal.tmp
<SD-Card>/data/.push_deviceid
<SD-Card>/libs/<Package>.bin
<SD-Card>/libs/<Package>.db
<SD-Card>/libs/app.db
<SD-Card>/libs/com.getui.sdk.deviceId.db
<SD-Card>/libs/com.igexin.sdk.deviceId.db
<SD-Card>/libs/test.log
<SD-Card>/system/####/tdata_MkX219
<SD-Card>/system/####/tdata_OWn962
<SD-Card>/tencent/####/.mid.txt
<SD-Card>/tencent/####/log-20171116_1227_1.txt

Miscellaneous:

Executes next shell scripts:

<Package Folder>/files/gdaemon_20161017 0 <Package>/<Package>.push.GTPushService 25187 300 0
cat /sys/class/net/wlan0/address
chmod 700 <Package Folder>/files/gdaemon_20161017
chmod 755 <Package Folder>/.jiagu/libjiagu.so
getprop
getprop ro.product.cpu.abi
mount
ps

Loads the following dynamic libraries:

getuiext2
jcore117
libjiagu
sgmainso-5.1
sgsecuritybodyso-5.1
tpnsSecurity
ut_c_api
weibosdkcore

Uses the following algorithms to encrypt data:

AES-CBC-PKCS5Padding
AES-CFB8-NoPadding
AES-ECB-PKCS5Padding
AES-ECB-PKCS7Padding
AES-ECB-ZeroBytePadding
DES-CBC-PKCS5Padding
RSA-ECB-NoPadding
RSA-ECB-PKCS1PADDING
RSA-ECB-PKCS1Padding
RSA-NONE-OAEPWithSHA1AndMGF1Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding
AES-CFB8-NoPadding
AES-ECB-NoPadding
DES-CBC-PKCS5Padding
DES-ECB-PKCS5Padding

Uses special library to hide executable bytecode.

Gains access to geolocation.

Gains access to network information.

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

Gains access to information about APN settings.

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

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