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Android.Backdoor.600

Added to the Dr.Web virus database: 2018-01-20

Virus description added:

Technical information

Malicious functions:
Executes code of the following detected threats:
  • Android.Backdoor.420.origin
Gains access to the ITelephony private interface.
Network activity:
Connecting to:
  • UDP(DNS) <Google DNS>
  • TCP(HTTP/1.1) up####.sdk.jig####.cn:80
  • TCP(HTTP/1.1) m.d####.mob.com:80
  • TCP(HTTP/1.1) d####.d####.mob.com:80
  • TCP(HTTP/1.1) a####.exc.mob.com:80
  • TCP(HTTP/1.1) c.d####.mob.com:80
  • TCP(HTTP/1.1) api.s####.mob.com:80
  • TCP(HTTP/1.1) ai####.anal####.cn:8089
  • TCP(HTTP/1.1) ur####.anal####.cn:8089
  • TCP(HTTP/1.1) l####.cc:80
  • TCP(HTTP/1.1) www.3####.net:80
  • TCP(TLS/1.0) i####.k####.com:443
  • TCP(TLS/1.0) api.kuaikan####.com:443
  • TCP(TLS/1.0) sa.k####.com:443
  • TCP(TLS/1.0) s####.j####.cn:443
  • UDP easytom####.com:19000
  • TCP 1####.229.215.20:7007
  • UDP s.j####.cn:19000
DNS requests:
  • a####.exc.mob.com
  • ai####.anal####.cn
  • api.k####.com
  • api.kuaikan####.com
  • api.s####.mob.com
  • c.d####.mob.com
  • d####.d####.mob.com
  • easytom####.com
  • i####.k####.com
  • l####.cc
  • m.d####.mob.com
  • pay.k####.com
  • s####.j####.cn
  • s.j####.cn
  • sa.k####.com
  • sis.j####.io
  • up####.sdk.jig####.cn
  • ur####.anal####.cn
  • www.3####.org
HTTP GET requests:
  • l####.cc/i/sdk/is_gal?sign=####&android_id=####&retry_times=####&linkedm...
  • m.d####.mob.com/v3/cconf?appkey=####&plat=####&apppkg=####&appver=####&n...
  • www.3####.net/dyndns/getip
HTTP POST requests:
  • a####.exc.mob.com/errconf
  • ai####.anal####.cn:8089/
  • api.s####.mob.com/conf5
  • api.s####.mob.com/conn
  • api.s####.mob.com/log4
  • api.s####.mob.com/snsconf
  • c.d####.mob.com/v2/cdata
  • d####.d####.mob.com/dinfo
  • d####.d####.mob.com/dsign
  • l####.cc/i/sdk/install
  • up####.sdk.jig####.cn/v1/push/sdk/postlist
  • ur####.anal####.cn:8089/
Modified file system:
Creates the following files:
  • /data/anr/traces.txt
  • <Package Folder>/code_cache/####/<Package>-1.apk.classes-1177255710.zip
  • <Package Folder>/databases/ThrowalbeLog.db-journal
  • <Package Folder>/databases/cc.db
  • <Package Folder>/databases/cc.db-journal
  • <Package Folder>/databases/eguan.db
  • <Package Folder>/databases/eguan.db-journal
  • <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/kkmh-orm.db-journal
  • <Package Folder>/databases/kkmh.db-journal
  • <Package Folder>/databases/sharesdk.db-journal
  • <Package Folder>/databases/ua.db
  • <Package Folder>/databases/ua.db-journal
  • <Package Folder>/files/####/.mrlock
  • <Package Folder>/files/####/DINCond-Medium.otf
  • <Package Folder>/files/####/config.json
  • <Package Folder>/files/####/loadfail.png
  • <Package Folder>/files/####/mob_commons_1
  • <Package Folder>/files/####/mob_sdk_exception_1
  • <Package Folder>/files/####/offline.png
  • <Package Folder>/files/####/p-1.png
  • <Package Folder>/files/####/p-2.png
  • <Package Folder>/files/####/p-3.png
  • <Package Folder>/files/####/ph.png
  • <Package Folder>/files/####/qalimid_v2
  • <Package Folder>/files/####/rank-new.html
  • <Package Folder>/files/####/rank-over.html
  • <Package Folder>/files/####/rank-week.html
  • <Package Folder>/files/####/require.js
  • <Package Folder>/files/####/sa_web_sdk.js
  • <Package Folder>/files/####/share_sdk_1
  • <Package Folder>/files/####/storage.js
  • <Package Folder>/files/####/underscore.js
  • <Package Folder>/files/####/vue-lazyload.js
  • <Package Folder>/files/####/vue-rank-new.css
  • <Package Folder>/files/####/vue-rank-new.js
  • <Package Folder>/files/####/vue-resource.min.js
  • <Package Folder>/files/####/vue-tap.min.js
  • <Package Folder>/files/####/vue.min.js
  • <Package Folder>/files/####/wave.png
  • <Package Folder>/files/.lock
  • <Package Folder>/files/.mrecord
  • <Package Folder>/files/.statistics
  • <Package Folder>/files/QALConfigStore.dat
  • <Package Folder>/files/appPackageNames
  • <Package Folder>/files/du.lock
  • <Package Folder>/files/jpush_stat_cache_history.json
  • <Package Folder>/files/report_v5.msgstore-journal
  • <Package Folder>/files/shuzilm.db
  • <Package Folder>/files/tls_device.dat
  • <Package Folder>/files/wlogin_device.dat
  • <Package Folder>/shared_prefs/<Package>_account.xml
  • <Package Folder>/shared_prefs/<Package>_android.xml
  • <Package Folder>/shared_prefs/<Package>_dna.xml
  • <Package Folder>/shared_prefs/<Package>_preferences.xml
  • <Package Folder>/shared_prefs/<Package>_prefs.xml
  • <Package Folder>/shared_prefs/LKME_Server_Request_Queue.xml
  • <Package Folder>/shared_prefs/TLS_DEVICE_INFO.xml
  • <Package Folder>/shared_prefs/TLS_DEVICE_INFO.xml.bak (deleted)
  • <Package Folder>/shared_prefs/WInfo.xml
  • <Package Folder>/shared_prefs/WLOGIN_DEVICE_INFO.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/com.sensorsdata.analytics.android...PI.xml
  • <Package Folder>/shared_prefs/jpush_device_info.xml
  • <Package Folder>/shared_prefs/kk_httpDns_config.xml
  • <Package Folder>/shared_prefs/linkedme_referral_shared_pref.xml
  • <Package Folder>/shared_prefs/linkedme_referral_shared_pref.xml (deleted)
  • <Package Folder>/shared_prefs/linkedme_referral_shared_pref.xml...leted)
  • <Package Folder>/shared_prefs/linkedme_referral_shared_pref.xml.bak
  • <Package Folder>/shared_prefs/multidex.version.xml
  • <Package Folder>/shared_prefs/pref_name_device_info.xml
  • <Package Folder>/shared_prefs/pref_name_topic_tip_show_times.xml
  • <Package Folder>/shared_prefs/sp_replace_flag.sp
  • <Package Folder>/shared_prefs/sp_replace_flag.sp.bak
  • <Package Folder>/shared_prefs/sputil.sp
  • <Package Folder>/shared_prefs/sputil.sp.bak
  • <Package Folder>/shared_prefs/umeng_general_config.xml
  • <SD-Card>/._android.dat
  • <SD-Card>/._driver.dat
  • <SD-Card>/._system.dat
  • <SD-Card>/.aio.dat
  • <SD-Card>/.lm_device/.lm_device_id
  • <SD-Card>/Android/####/_android.dat
  • <SD-Card>/Android/####/_driver.dat
  • <SD-Card>/Android/####/_system.dat
  • <SD-Card>/Android/####/aio.dat
  • <SD-Card>/Android/####/hybrid_11008.zip
  • <SD-Card>/Mob/####/.al
  • <SD-Card>/Mob/####/.dh-journal
  • <SD-Card>/Mob/####/.dhlock
  • <SD-Card>/Mob/####/.dic_lock
  • <SD-Card>/Mob/####/.duid
  • <SD-Card>/Mob/####/.globalLock
  • <SD-Card>/Mob/####/.nulal
  • <SD-Card>/Mob/####/.nulplt
  • <SD-Card>/Mob/####/.pkg_lock
  • <SD-Card>/Mob/####/.plst
  • <SD-Card>/Mob/####/.rcTag
  • <SD-Card>/Mob/####/.rc_lock
  • <SD-Card>/data/.push_deviceid
  • <SD-Card>/tencent/####/app.17.11.16.11.log
  • <SD-Card>/tencent/####/imsdk_20171116.log
  • <SD-Card>/tencent/####/sdk.17.11.16.11.log
Miscellaneous:
Executes next shell scripts:
  • app_process /system/bin com.android.commands.pm.Pm list packages
  • cat /sys/class/net/eth0/address
  • cat /sys/class/net/wlan0/address
  • date
  • df
  • grep -E -v root|shell|system
  • id
  • ls /dev/socket
  • ls /system/fonts
  • mkdir -p <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/
  • pm list packages
  • ps
  • service call iphonesubinfo 1
  • sh
  • 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 NEM5Rjc2OEQ3RDA0QkYzRDk4QTNERTJBQzY3Qjc5RkUxNTEwODMzMzA5 > <SD-Card>/../../../../../..<SD-Card>/.aio.dat
  • sh -c echo NEM5Rjc2OEQ3RDA0QkYzRDk4QTNERTJBQzY3Qjc5RkUxNTEwODMzMzA5 > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/aio.dat
  • sh -c echo NkE4MDIwOUQxRDMxMkE2QkZCMTc4NzdCMTE0OTBGMzJBQ0VCRUY6REU5RkIyOjU5OTI4Mg== > <SD-Card>/../../../../../..<SD-Card>/._android.dat
  • sh -c echo NkE4MDIwOUQxRDMxMkE2QkZCMTc4NzdCMTE0OTBGMzJBQ0VCRUY6REU5RkIyOjU5OTI4Mg== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_android.dat
  • sh -c echo ODQzQzUyMDczMDBFRTQ5ODk4M0FEQkJGRDFENDYwQTBFOTQ5NjQ6QzhGOUMyOkU4MzdFRQ== > <SD-Card>/../../../../../..<SD-Card>/._driver.dat
  • sh -c echo ODQzQzUyMDczMDBFRTQ5ODk4M0FEQkJGRDFENDYwQTBFOTQ5NjQ6QzhGOUMyOkU4MzdFRQ== > <SD-Card>/../../../../../..<SD-Card>/Android/Data/System/local/_driver.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
  • top -d 0 -n 1
Loads the following dynamic libraries:
  • _imcore_jni_gyp
  • du
  • jcore117
  • libwtcrypto
  • neh
  • qalcodecwrapper
  • qalmsfboot
Gains access to geolocation.
Gains access to network information.
Gains access to telephone information (number, imei, etc.).
Gains access to information about installed applications.
Gains access to information about running applications.
Adds tasks to the system scheduler.
Displays its own windows over windows of other applications.

Curing recommendations

Android

  1. 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.
  2. 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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