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Trojan.Encoder.41199

Added to the Dr.Web virus database: 2024-10-26

Virus description added:

Technical Information

Modifies file system
Moves the following files
  • from %APPDATA%\microsoft\internet explorer\quick launch\google chrome.lnk to %APPDATA%\microsoft\internet explorer\quick launch\google chrome.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\private character editor.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\private character editor.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\google chrome\google chrome.lnk to %APPDATA%\microsoft\windows\start menu\programs\google chrome\google chrome.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\maintenance\help.lnk to %APPDATA%\microsoft\windows\start menu\programs\maintenance\help.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\telegram desktop\telegram.lnk to %APPDATA%\microsoft\windows\start menu\programs\telegram desktop\telegram.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\telegram desktop\uninstall telegram.lnk to %APPDATA%\microsoft\windows\start menu\programs\telegram desktop\uninstall telegram.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\winrar\console rar manual.lnk to %APPDATA%\microsoft\windows\start menu\programs\winrar\console rar manual.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\winrar\what is new in the latest version.lnk to %APPDATA%\microsoft\windows\start menu\programs\winrar\what is new in the latest version.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\winrar\winrar help.lnk to %APPDATA%\microsoft\windows\start menu\programs\winrar\winrar help.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\winrar\winrar.lnk to %APPDATA%\microsoft\windows\start menu\programs\winrar\winrar.lnk.plankton
  • from %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\pkcs11.txt to %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\pkcs11.txt.plankton
  • from %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\securitypreloadstate.txt to %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\securitypreloadstate.txt.plankton
  • from %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\prefs.js to %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\prefs.js.plankton
  • from %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\securitypreloadstate.txt to %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\securitypreloadstate.txt.plankton
  • from %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\sitesecurityservicestate.txt to %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\sitesecurityservicestate.txt.plankton
  • from %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\trrblacklist.txt to %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\trrblacklist.txt.plankton
  • from %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\user.js to %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\user.js.plankton
  • from %APPDATA%\mozilla\firefox\profiles\q0evdndb.default\user.js to %APPDATA%\mozilla\firefox\profiles\q0evdndb.default\user.js.plankton
  • from %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\alternateservices.txt to %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\alternateservices.txt.plankton
  • from %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\pkcs11.txt to %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\pkcs11.txt.plankton
  • from %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\prefs.js to %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\prefs.js.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\internet explorer (no add-ons).lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\internet explorer (no add-ons).lnk.plankton
  • from %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\alternateservices.txt to %APPDATA%\mozilla\firefox\profiles\apc2n9d1.default-release\alternateservices.txt.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\control panel.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\control panel.lnk.plankton
  • from %APPDATA%\microsoft\office\recent\templates.lnk to %APPDATA%\microsoft\office\recent\templates.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\launch internet explorer browser.lnk to %APPDATA%\microsoft\internet explorer\quick launch\launch internet explorer browser.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\shows desktop.lnk to %APPDATA%\microsoft\internet explorer\quick launch\shows desktop.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\window switcher.lnk to %APPDATA%\microsoft\internet explorer\quick launch\window switcher.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\firefox.lnk to %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\firefox.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\google chrome.lnk to %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\google chrome.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\internet explorer.lnk to %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\internet explorer.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\opera.lnk to %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\opera.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\windows explorer.lnk to %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\windows explorer.lnk.plankton
  • from %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\windows media player.lnk to %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\windows media player.lnk.plankton
  • from %APPDATA%\microsoft\windows\sendto\fax recipient.lnk to %APPDATA%\microsoft\windows\sendto\fax recipient.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\on-screen keyboard.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\on-screen keyboard.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\internet explorer (64-bit).lnk to %APPDATA%\microsoft\windows\start menu\programs\internet explorer (64-bit).lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\internet explorer.lnk to %APPDATA%\microsoft\windows\start menu\programs\internet explorer.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\command prompt.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\command prompt.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\notepad.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\notepad.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\run.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\run.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\windows explorer.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\windows explorer.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\ease of access.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\ease of access.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\magnify.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\magnify.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\narrator.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\accessibility\narrator.lnk.plankton
  • from %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\computer.lnk to %APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\computer.lnk.plankton
  • from %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\sitesecurityservicestate.txt to %APPDATA%\thunderbird\profiles\rehh7ft5.default-release\sitesecurityservicestate.txt.plankton
Modifies the following files
  • %ALLUSERSPROFILE%\microsoft\office\assetlibrary.ico.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\snipping tool.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\remote desktop connection.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\paint.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\networkprojection.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\mobility center.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\math input panel.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\displayswitch.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\calculator.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\xps viewer.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\windows media player.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\windows fax and scan.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\windows dvd maker.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\sidebar.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\opera.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\mozilla thunderbird.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\media center.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\firefox.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\acrobat reader dc.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\windows update.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\default programs.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\user account pictures\user.bmp.plankton
  • %ALLUSERSPROFILE%\microsoft\user account pictures\guest.bmp.plankton
  • %ALLUSERSPROFILE%\microsoft\office\sharepointteamsite.ico.plankton
  • %ALLUSERSPROFILE%\microsoft\office\sharepointportalsite.ico.plankton
  • %ALLUSERSPROFILE%\microsoft\office\mysite.ico.plankton
  • %ALLUSERSPROFILE%\microsoft\office\mysharepoints.ico.plankton
  • %ALLUSERSPROFILE%\microsoft\office\documentrepository.ico.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\sound recorder.lnk.plankton
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\accessories\sticky notes.lnk.plankton
Modifies multiple files.
Changes user data files extensions (Trojan.Encoder).

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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