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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.Packed.21276

Added to the Dr.Web virus database: 2017-05-09

Virus description added: 2017-05-09

Technical information

Malicious functions:

Executes code of the following detected threats:

Android.HiddenAds.76.origin

Network activity:

Connecting to:

a####.####.com
d####.####.net

HTTP GET requests:

d####.####.net/static/jar/2017-05-03/jar_c9f41ea4-d0a3-4947-894a-c8170fa...
a####.####.com/adunion/rtb/getInmobiAd?h=####&w=####&model=####&vendor=#...
a####.####.com/adunion/rtb/fetchAd?h=####&w=####&model=####&vendor=####&...
a####.####.com/adunion/slot/getDlAd?h=####&w=####&model=####&vendor=####...
a####.####.com/adunion/slot/getSrcPrio?h=####&w=####&model=####&vendor=#...

HTTP POST requests:

d####.####.net/dynamic/jarDownBack.do
d####.####.net/dynamic/jarInit.do
d####.####.net/dynamic/init.do

Modified file system:

Creates the following files:

/sdcard/Android/data/####/extra/vs_dl_extra_100.jar
/sdcard/Android/data/.nomedia
/data/data/####/databases/sklead.dataBase
/data/data/####/shared_prefs/SSPPrefe.xml
/data/data/####/databases/du_ad_cache.db-journal
/data/data/####/shared_prefs/VsoYouSdkTool.xml.bak
/data/data/####/databases/plug.dataBase-journal
/data/data/####/shared_prefs/settings.xml
/sdcard/dexfiles/endygen.jar
/data/data/####/shared_prefs/_toolbox_prefs.xml
/data/data/####/shared_prefs/VsoYouSdkTool.xml
/sdcard/dexfiles/dedygen.jar
/data/data/####/shared_prefs/_toolbox_prefs.xml.bak
/data/data/####/databases/du_ad_ts.db-journal
/data/data/####/databases/plug.dataBase
/data/data/####/shared_prefs/SSPPrefe.xml.bak
/data/data/####/databases/du_ad_parse.db-journal
/data/data/####/databases/sklead.dataBase-journal
/sdcard/Android/data/####/extra/jar_c9f41ea4-d0a3-4947-894a-c8170faa7a23.tmp

Miscellaneous:

Executes next shell scripts:

/system/bin/dexopt --dex 27 63 40 233236 /storage/emulated/0/dexfiles/dedygen.jar 1250852472 843327154 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.jar /system/framework/framework.
/system/bin/dexopt --dex 27 74 40 192260 /storage/emulated/0/Android/data/####/extra/jar_c9f41ea4-d0a3-4947-894a-c8170faa7a23.jar 1252237062 -705342429 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastl
/system/bin/dexopt --dex 27 58 40 1320 /storage/emulated/0/Android/data/####/extra/vs_dl_extra_100.jar 1248950374 639782040 45 /system/framework/core.jar /system/framework/core-junit.jar /system/framework/bouncycastle.jar /system/framework/ext.

Contains functionality to send SMS messages automatically.

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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