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Trojan.DownLoader25.43721

Added to the Dr.Web virus database: 2017-10-07

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'System Endpoint Internet Disk Log Proxy' = 'C:\pdtqsqjmerf\lfhstors.exe'
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\Assistant Identity Human Files Workstation] 'ImagePath' = 'C:\pdtqsqjmerf\lfhstors.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\Assistant Identity Human Files Workstation] 'Start' = '00000002'
Malicious functions:
Creates and executes the following:
  • 'C:\pdtqsqjmerf\rxjdughea.exe' "c:\pdtqsqjmerf\lfhstors.exe"
  • 'C:\pdtqsqjmerf\lfhstors.exe'
  • 'C:\pdtqsqjmerf\fdnxv2m40yxarggjvzyo.exe'
Modifies file system:
Creates the following files:
  • C:\pdtqsqjmerf\lfhstors.exe
  • C:\pdtqsqjmerf\rxjdughea.exe
  • C:\pdtqsqjmerf\boknclaolorm
  • %WINDIR%\pdtqsqjmerf\bbjebphl
  • C:\pdtqsqjmerf\bbjebphl
  • C:\pdtqsqjmerf\fdnxv2m40yxarggjvzyo.exe
Sets the 'hidden' attribute to the following files:
  • C:\pdtqsqjmerf\rxjdughea.exe
  • C:\pdtqsqjmerf\lfhstors.exe
Deletes the following files:
  • C:\pdtqsqjmerf\fdnxv2m40yxarggjvzyo.exe
  • %WINDIR%\pdtqsqjmerf\bbjebphl
Substitutes the following files:
  • %WINDIR%\pdtqsqjmerf\bbjebphl
Network activity:
Connects to:
  • 'fr###afraid.net':80
  • 'ex#####nceafraid.net':80
  • 'fr###dinner.net':80
  • 'ex#####ncedinner.net':80
  • 'fr###circle.net':80
  • 'al####ymeasure.net':80
  • 'ge####mandinner.net':80
  • 'ex#####ncecircle.net':80
  • 'ge#####anmeasure.net':80
  • 'fi###apple.net':80
  • 'pa###built.net':80
  • 'fi###father.net':80
  • 'pa###apple.net':80
  • 'fi###built.net':80
  • 'fr####easure.net':80
  • 'ex#####ncemeasure.net':80
  • 'pa###carry.net':80
  • 'fi###carry.net':80
  • 'fo####circle.net':80
  • 'me####circle.net':80
  • 'fo####afraid.net':80
  • 'me####afraid.net':80
  • 'be####easure.net':80
  • 'kn###dinner.net':80
  • 'be###afraid.net':80
  • 'kn####easure.net':80
  • 'be###dinner.net':80
  • 'al####yafraid.net':80
  • 'ge####mancircle.net':80
  • 'al####ydinner.net':80
  • 'ge####manafraid.net':80
  • 'al####ycircle.net':80
  • 'fo####dinner.net':80
  • 'me####dinner.net':80
  • 'fo####measure.net':80
  • 'me####measure.net':80
  • 'su####father.net':80
  • 'cr###father.net':80
  • 'be###carry.net':80
  • 'kn###carry.net':80
  • 'su###rapple.net':80
  • 'cr###built.net':80
  • 'su###rcarry.net':80
  • 'cr###apple.net':80
  • 'su###rbuilt.net':80
  • 'me###rcarry.net':80
  • 'be###father.net':80
  • 'me###rbuilt.net':80
  • 'fo###wcarry.net':80
  • 'kn###father.net':80
  • 'be###built.net':80
  • 'kn###built.net':80
  • 'be###apple.net':80
  • 'kn###apple.net':80
  • 'wo###apple.net':80
  • 'sm###apple.net':80
  • 'wo###father.net':80
  • 'sm###father.net':80
  • 'wo###built.net':80
  • 'sm###carry.net':80
  • 'pa###father.net':80
  • 'sm###built.net':80
  • 'wo###carry.net':80
  • 'wa###father.net':80
  • 'th####tapple.net':80
  • 'cr###carry.net':80
  • 'th####tfather.net':80
  • 'wa###apple.net':80
  • 'th####tcarry.net':80
  • 'wa###carry.net':80
  • 'th####tbuilt.net':80
  • 'wa###built.net':80
TCP:
HTTP GET requests:
  • http://fr###afraid.net/index.php
  • http://ex#####nceafraid.net/index.php
  • http://fr###dinner.net/index.php
  • http://ex#####ncedinner.net/index.php
  • http://fr###circle.net/index.php
  • http://al####ymeasure.net/index.php
  • http://ge####mandinner.net/index.php
  • http://ex#####ncecircle.net/index.php
  • http://ge#####anmeasure.net/index.php
  • http://fi###apple.net/index.php
  • http://pa###built.net/index.php
  • http://fi###father.net/index.php
  • http://pa###apple.net/index.php
  • http://fi###built.net/index.php
  • http://fr####easure.net/index.php
  • http://ex#####ncemeasure.net/index.php
  • http://pa###carry.net/index.php
  • http://fi###carry.net/index.php
  • http://fo####circle.net/index.php
  • http://me####circle.net/index.php
  • http://fo####afraid.net/index.php
  • http://me####afraid.net/index.php
  • http://be####easure.net/index.php
  • http://kn###dinner.net/index.php
  • http://be###afraid.net/index.php
  • http://kn####easure.net/index.php
  • http://be###dinner.net/index.php
  • http://al####yafraid.net/index.php
  • http://ge####mancircle.net/index.php
  • http://al####ydinner.net/index.php
  • http://ge####manafraid.net/index.php
  • http://al####ycircle.net/index.php
  • http://fo####dinner.net/index.php
  • http://me####dinner.net/index.php
  • http://fo####measure.net/index.php
  • http://me####measure.net/index.php
  • http://su####father.net/index.php
  • http://cr###father.net/index.php
  • http://be###carry.net/index.php
  • http://kn###carry.net/index.php
  • http://su###rapple.net/index.php
  • http://cr###built.net/index.php
  • http://su###rcarry.net/index.php
  • http://cr###apple.net/index.php
  • http://su###rbuilt.net/index.php
  • http://me###rcarry.net/index.php
  • http://be###father.net/index.php
  • http://me###rbuilt.net/index.php
  • http://fo###wcarry.net/index.php
  • http://kn###father.net/index.php
  • http://be###built.net/index.php
  • http://kn###built.net/index.php
  • http://be###apple.net/index.php
  • http://kn###apple.net/index.php
  • http://wo###apple.net/index.php
  • http://sm###apple.net/index.php
  • http://wo###father.net/index.php
  • http://sm###father.net/index.php
  • http://wo###built.net/index.php
  • http://sm###carry.net/index.php
  • http://pa###father.net/index.php
  • http://sm###built.net/index.php
  • http://wo###carry.net/index.php
  • http://wa###father.net/index.php
  • http://th####tapple.net/index.php
  • http://cr###carry.net/index.php
  • http://th####tfather.net/index.php
  • http://wa###apple.net/index.php
  • http://th####tcarry.net/index.php
  • http://wa###carry.net/index.php
  • http://th####tbuilt.net/index.php
  • http://wa###built.net/index.php
UDP:
  • DNS ASK ex#####nceafraid.net
  • DNS ASK fr###circle.net
  • DNS ASK ex#####ncedinner.net
  • DNS ASK fr###afraid.net
  • DNS ASK ex#####ncecircle.net
  • DNS ASK ge####mandinner.net
  • DNS ASK al####ydinner.net
  • DNS ASK ge#####anmeasure.net
  • DNS ASK al####ymeasure.net
  • DNS ASK pa###built.net
  • DNS ASK fi###built.net
  • DNS ASK pa###apple.net
  • DNS ASK fi###apple.net
  • DNS ASK pa###carry.net
  • DNS ASK ex#####ncemeasure.net
  • DNS ASK fr###dinner.net
  • DNS ASK fi###carry.net
  • DNS ASK fr####easure.net
  • DNS ASK me####circle.net
  • DNS ASK be####easure.net
  • DNS ASK me####afraid.net
  • DNS ASK fo####circle.net
  • DNS ASK kn####easure.net
  • DNS ASK be###afraid.net
  • DNS ASK kn###afraid.net
  • DNS ASK be###dinner.net
  • DNS ASK kn###dinner.net
  • DNS ASK ge####mancircle.net
  • DNS ASK al####ycircle.net
  • DNS ASK ge####manafraid.net
  • DNS ASK al####yafraid.net
  • DNS ASK fo####measure.net
  • DNS ASK me####dinner.net
  • DNS ASK fo####afraid.net
  • DNS ASK me####measure.net
  • DNS ASK fo####dinner.net
  • DNS ASK fi###father.net
  • DNS ASK su####father.net
  • DNS ASK cr###father.net
  • DNS ASK be###carry.net
  • DNS ASK kn###carry.net
  • DNS ASK su###rapple.net
  • DNS ASK cr###built.net
  • DNS ASK su###rcarry.net
  • DNS ASK cr###apple.net
  • DNS ASK su###rbuilt.net
  • DNS ASK me###rcarry.net
  • DNS ASK be###father.net
  • DNS ASK me###rbuilt.net
  • DNS ASK fo###wcarry.net
  • DNS ASK kn###father.net
  • DNS ASK be###built.net
  • DNS ASK kn###built.net
  • DNS ASK be###apple.net
  • DNS ASK kn###apple.net
  • DNS ASK wo###apple.net
  • DNS ASK sm###apple.net
  • DNS ASK wo###father.net
  • DNS ASK sm###father.net
  • DNS ASK wo###built.net
  • DNS ASK sm###carry.net
  • DNS ASK pa###father.net
  • DNS ASK sm###built.net
  • DNS ASK wo###carry.net
  • DNS ASK wa###father.net
  • DNS ASK th####tapple.net
  • DNS ASK cr###carry.net
  • DNS ASK th####tfather.net
  • DNS ASK wa###apple.net
  • DNS ASK th####tcarry.net
  • DNS ASK wa###carry.net
  • DNS ASK th####tbuilt.net
  • DNS ASK wa###built.net

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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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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