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アンチウイルスに関する誤解と噂

ニュース

Trojan.Siggen8.53621

Added to the Dr.Web virus database: 2019-11-05

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following services
  • [<HKLM>\System\CurrentControlSet\Services\Media CardSpace User Profile Call Layer] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\Media CardSpace User Profile Call Layer] 'ImagePath' = '%WINDIR%\hszbbqexg.exe'
  • [<HKLM>\System\CurrentControlSet\Services\IKEEXT] 'Start' = '00000002'
Malicious functions
To bypass firewall, removes or modifies the following registry keys
  • [<HKLM>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
  • [<HKLM>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
To complicate detection of its presence in the operating system,
blocks the following features:
  • Windows Security Center
Executes the following
  • '%WINDIR%\syswow64\netsh.exe' firewall set opmode disable
Modifies file system
Creates the following files
  • %WINDIR%\yzecsmaafy\tst
  • %TEMP%\xptg3iid8wc31jtrctomftdolbu.exe
  • %WINDIR%\hszbbqexg.exe
  • %WINDIR%\fyeeuzad.exe
  • %WINDIR%\yzecsmaafy\rng
  • %WINDIR%\yzecsmaafy\run
  • %WINDIR%\yzecsmaafy\cfg
  • %WINDIR%\temp\xptg3iidt3mlc3trcto.exe
Sets the 'hidden' attribute to the following files
  • %WINDIR%\hszbbqexg.exe
  • %WINDIR%\fyeeuzad.exe
Deletes the following files
  • %TEMP%\xptg3iid8wc31jtrctomftdolbu.exe
  • %WINDIR%\temp\xptg3iidt3mlc3trcto.exe
Network activity
TCP
HTTP GET requests
  • http://so###easy.net/index.php
  • http://fe###hem.net/index.php
  • http://we###est.net/index.php
UDP
  • DNS ASK fi###them.net
  • DNS ASK fi###best.net
  • DNS ASK so#####nsiderable.net
  • DNS ASK fi#####nsiderable.net
  • DNS ASK so###easy.net
  • DNS ASK fi###easy.net
  • DNS ASK th###them.net
  • DNS ASK li###hem.net
  • DNS ASK th###best.net
  • DNS ASK li###est.net
  • DNS ASK th#####nsiderable.net
  • DNS ASK li#####siderable.net
  • DNS ASK th###easy.net
  • DNS ASK li###asy.net
  • DNS ASK fe###hem.net
  • DNS ASK we###hem.net
  • DNS ASK fe###est.net
  • DNS ASK we###est.net
  • DNS ASK fe#####siderable.net
  • DNS ASK we#####siderable.net
  • DNS ASK so###best.net
  • DNS ASK fe###asy.net
  • DNS ASK we###asy.net
  • DNS ASK fa###marry.net
  • DNS ASK du#####llamartinson.net
  • DNS ASK ma#####llabotwright.net
  • DNS ASK si#####tesherisse.net
  • DNS ASK de####between.net
  • DNS ASK al####eighbor.net
  • DNS ASK ge###eangry.net
  • DNS ASK gw#####ynhuddleston.net
  • DNS ASK si######edwerryhouse.net
  • DNS ASK se####strong.net
  • DNS ASK of####urprise.net
  • DNS ASK ch####nother.net
  • DNS ASK mo####gduring.net
  • DNS ASK wi###bout.net
  • DNS ASK ca###tep.net
  • DNS ASK ri###nstorm.net
  • DNS ASK do####object.net
  • DNS ASK br###nthird.net
  • DNS ASK mi####pecial.net
  • DNS ASK ri###arry.net
  • DNS ASK so###them.net
  • '23#.#55.255.250':1900
Miscellaneous
Creates and executes the following
  • '%TEMP%\xptg3iid8wc31jtrctomftdolbu.exe'
  • '%WINDIR%\hszbbqexg.exe'
  • '%WINDIR%\fyeeuzad.exe' "%WINDIR%\hszbbqexg.exe"
  • '%WINDIR%\temp\xptg3iidt3mlc3trcto.exe' -r 25169 tcp
  • '%WINDIR%\syswow64\netsh.exe' firewall set opmode disable' (with hidden window)
  • '%WINDIR%\temp\xptg3iidt3mlc3trcto.exe' -r 25169 tcp' (with hidden window)

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. 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 for Android 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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