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アンチウイルスに関する誤解と噂

アンチウイルスに関する誤解

ニュース

Android.Triada.1032

Added to the Dr.Web virus database: 2018-05-24

Virus description added: 2018-05-24

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.Triada.71

Network activity:

Connecting to:

UDP(DNS) <Google DNS>
TCP(HTTP/1.1) a####.u####.com:80
TCP(HTTP/1.1) p####.3g.qq.com:80
TCP(TLS/1.0) u####.umengc####.com:443

DNS requests:

a####.u####.com
p####.3g.qq.com
u####.umengc####.com

HTTP POST requests:

a####.u####.com/app_logs
p####.3g.qq.com/

Modified file system:

Creates the following files:

/data/data-lib/####/ktools
/data/data/####/.imprint
/data/data/####/Alvin2.xml
/data/data/####/AppStore.xml
/data/data/####/ContextData.xml
/data/data/####/PhoneUtil.xml
/data/data/####/__krsdk.res__
/data/data/####/actsts
/data/data/####/agoo.pid
/data/data/####/chkmount
/data/data/####/chkmount (deleted)
/data/data/####/daemon
/data/data/####/exchangeIdentity.json
/data/data/####/kd
/data/data/####/kds
/data/data/####/kingrootsdk.xml
/data/data/####/kr-stock-conf
/data/data/####/krsdk.cert
/data/data/####/krsdk.res
/data/data/####/ktools
/data/data/####/ktools (deleted)
/data/data/####/ku-config
/data/data/####/libjiagu.so
/data/data/####/libkrsdk1.2.0.220.so
/data/data/####/nuclear_setting.xml
/data/data/####/nuclear_setting.xml (deleted)
/data/data/####/reportroot
/data/data/####/reportroot (deleted)
/data/data/####/su_check
/data/data/####/su_check (deleted)
/data/data/####/supolicy
/data/data/####/supolicy (deleted)
/data/data/####/umeng_general_config.xml
/data/data/####/umeng_it.cache
/data/data/####/umeng_message_state.xml
/data/media/####/Alvin2.xml
/data/media/####/ContextData.xml
/data/media/####/kr-stock-conf

Miscellaneous:

Executes next shell scripts:

/system/bin/cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
<Package Folder>/app_krsdk/kd
<Package Folder>/files/daemon <Package>/com.passage.service.WorkService$1
chmod 0755 <Package Folder>/app_krsdk/ktools
chmod 0755 <Package Folder>/applib/ktools
chmod 0771 <Package Folder>/applib
chmod 755 <Package Folder>/.jiagu/libjiagu.so
chmod 755 <Package Folder>/files/daemon
getprop ro.board.platform
getprop ro.build.description
getprop ro.build.version.opporom
getprop ro.cm.device
getprop ro.cm.version
getprop ro.hardware
getprop ro.miui.ui.version.code
getprop ro.miui.ui.version.name
getprop ro.mtk.hardware
getprop ro.product.cpu.abi
getprop ro.product.cpu.abi2
ls -l /dev/kmem
ls -lZ <Package Folder>/app_krsdk/
ps
sh
sh <Package Folder>/app_krsdk/kd
sh <Package Folder>/files/daemon <Package>/com.passage.service.WorkService$1
su
su -v

Loads the following dynamic libraries:

libjiagu
libkrsdk1.2.0.220

Uses the following algorithms to encrypt data:

AES
AES-CBC-PKCS5Padding

Uses the following algorithms to decrypt data:

AES-CBC-PKCS5Padding

Uses elevated priveleges.

Uses special library to hide executable bytecode.

Gains access to network information.

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

Adds tasks to the system scheduler.

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.

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