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Trojan.Encoder.39141

Added to the Dr.Web virus database: 2024-06-21

Virus description added:

Technical Information

Malicious functions
Reads files which store third party applications passwords
  • %HOMEPATH%\desktop\000814251_video_01.avi
  • %HOMEPATH%\desktop\aoc_saq_d_v3_merchant.docx
  • %HOMEPATH%\desktop\archer.avi
  • %HOMEPATH%\desktop\contosoroot.cer
  • %HOMEPATH%\desktop\cveuropeo.doc
  • %HOMEPATH%\desktop\dashborder_144.bmp
  • %HOMEPATH%\desktop\dashborder_192.bmp
  • %HOMEPATH%\desktop\dial.bmp
  • %HOMEPATH%\desktop\lisp_success.doc
  • %HOMEPATH%\desktop\february_catalogue__2015.doc
  • %HOMEPATH%\desktop\nwfieldnotes1966.docx
  • %HOMEPATH%\desktop\pmd.cer
  • %HOMEPATH%\desktop\split.avi
Modifies file system
Creates the following files
  • %HOMEPATH%\documents\readme.txt
  • %ProgramFiles%\windows media player\readme.txt
  • %ProgramFiles%\windows media player\network sharing\readme.txt
  • %ProgramFiles%\windows media player\skins\readme.txt
  • %ProgramFiles%\windows nt\accessories\readme.txt
  • %ProgramFiles%\windows nt\tabletextservice\readme.txt
  • %ProgramFiles%\windows photo viewer\en-us\readme.txt
  • %ProgramFiles%\windows mail\readme.txt
  • %ProgramFiles%\windows photo viewer\readme.txt
  • %ProgramFiles%\windows media player\media renderer\readme.txt
  • %ProgramFiles%\windows sidebar\en-us\readme.txt
  • %ProgramFiles(x86)%\adobe\acrobat reader dc\readme.txt
  • %CommonProgramFiles(x86)%\services\readme.txt
  • %CommonProgramFiles(x86)%\steam\readme.txt
  • %CommonProgramFiles(x86)%\system\readme.txt
  • %ProgramFiles(x86)%\readme.txt
  • %ProgramFiles(x86)%\internet explorer\en-us\readme.txt
  • %ProgramFiles%\windows portable devices\readme.txt
  • %ProgramFiles(x86)%\internet explorer\readme.txt
  • %ProgramFiles%\windows sidebar\readme.txt
  • %ProgramFiles%\windows media player\en-us\readme.txt
  • %ProgramFiles%\windows mail\en-us\readme.txt
  • %ProgramFiles%\windows journal\templates\readme.txt
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\owow32ww.cab.sola
  • %ProgramFiles%\mozilla firefox\readme.txt
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\ose.exe.sola
  • %ProgramFiles%\mozilla firefox\browser\readme.txt
  • %ProgramFiles%\mozilla firefox\distibution\readme.txt
  • %ProgramFiles%\mozilla firefox\fonts\readme.txt
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\proplusww.msi.sola
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\osetup.dll.sola
  • %ProgramFiles%\mozilla firefox\uninstall\readme.txt
  • %ProgramFiles%\mozilla thunderbird\features\readme.txt
  • %ProgramFiles%\mozilla thunderbird\fonts\readme.txt
  • %ProgramFiles%\mozilla thunderbird\isp\readme.txt
  • %ProgramFiles%\mozilla thunderbird\uninstall\readme.txt
  • %ProgramFiles%\mozilla thunderbird\visualelements\readme.txt
  • %ProgramFiles%\windows defender\en-us\readme.txt
  • %ProgramFiles%\windows defender\readme.txt
  • %ProgramFiles%\windows journal\en-us\readme.txt
  • %ProgramFiles%\mozilla thunderbird\readme.txt
  • %ProgramFiles%\windows journal\readme.txt
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\pidgenx.dll.sola
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\pkeyconfig-office.xrm-ms.sola
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\propsww.cab.sola
  • C:\msocache\all users\{90140000-0016-0409-1000-0000000ff1ce}-c\excellr.cab.sola
  • %ProgramFiles(x86)%\windows media player\media renderer\readme.txt
  • %ProgramFiles(x86)%\windows media player\readme.txt
  • %ProgramFiles(x86)%\windows media player\skins\readme.txt
  • %ProgramFiles(x86)%\windows nt\accessories\readme.txt
  • %ProgramFiles(x86)%\windows nt\tabletextservice\readme.txt
  • %ProgramFiles(x86)%\windows photo viewer\en-us\readme.txt
  • %ProgramFiles(x86)%\windows photo viewer\readme.txt
  • %ProgramFiles(x86)%\windows mail\readme.txt
  • %ProgramFiles(x86)%\windows media player\en-us\readme.txt
  • %ProgramFiles(x86)%\windows portable devices\readme.txt
  • %ALLUSERSPROFILE%\microsoft\identitycrl\readme.txt
  • %ALLUSERSPROFILE%\microsoft\mf\readme.txt
  • %ALLUSERSPROFILE%\microsoft\office\readme.txt
  • %ALLUSERSPROFILE%\microsoft\officesoftwareprotectionplatform\readme.txt
  • %ALLUSERSPROFILE%\microsoft\user account pictures\readme.txt
  • %ALLUSERSPROFILE%\microsoft help\readme.txt
  • %ALLUSERSPROFILE%\package cache\{050d4fc8-5d48-4b8f-8972-47c82c46020f}\readme.txt
  • %ProgramFiles(x86)%\windows sidebar\en-us\readme.txt
  • %ProgramFiles(x86)%\windows sidebar\readme.txt
  • %ProgramFiles(x86)%\windows mail\en-us\readme.txt
  • %ProgramFiles(x86)%\windows defender\en-us\readme.txt
  • %ProgramFiles%\internet explorer\signup\readme.txt
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\setup.exe.sola
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\propsww2.cab.sola
  • C:\msocache\all users\{90140000-0016-0409-1000-0000000ff1ce}-c\excelmui.msi.sola
  • C:\msocache\all users\{90140000-001a-0409-1000-0000000ff1ce}-c\outlklr.cab.sola
  • C:\msocache\all users\{90140000-0019-0409-1000-0000000ff1ce}-c\publr.cab.sola
  • C:\msocache\all users\{90140000-0019-0409-1000-0000000ff1ce}-c\publishermui.msi.sola
  • %ProgramFiles(x86)%\microsoft.net\redistlist\readme.txt
  • %ProgramFiles(x86)%\msbuild\readme.txt
  • C:\msocache\all users\{90140000-0018-0409-1000-0000000ff1ce}-c\pptlr.cab.sola
  • %ProgramFiles(x86)%\opera\29.0.1795.47\readme.txt
  • C:\msocache\all users\{90140000-0018-0409-1000-0000000ff1ce}-c\powerpointmui.msi.sola
  • %ProgramFiles(x86)%\opera\assets\readme.txt
  • %ProgramFiles(x86)%\opera\readme.txt
  • %ProgramFiles(x86)%\steam\readme.txt
  • %ProgramFiles(x86)%\steam\bin\readme.txt
  • %ProgramFiles(x86)%\steam\logs\readme.txt
  • %ProgramFiles(x86)%\steam\public\readme.txt
  • %ProgramFiles(x86)%\internet explorer\signup\readme.txt
  • %ProgramFiles(x86)%\microsoft.net\primary interop assemblies\readme.txt
  • %ProgramFiles(x86)%\microsoft office\office14\readme.txt
  • %ProgramFiles%\microsoft sql server compact edition\v3.5\readme.txt
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\office32ww.msi.sola
  • <Full path to file>.sola
  • C:\msocache\all users\{90140000-0011-0000-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-0016-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-0018-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-0019-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-001a-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-001b-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\$recycle.bin\s-1-5-21-3150914307-1777937420-491476919-1000\readme.txt
  • C:\msocache\all users\{90140000-002c-0409-1000-0000000ff1ce}-c\readme.txt
  • <Current directory>\readme.txt
  • C:\msocache\all users\{90140000-0044-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-00a1-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-00ba-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-0115-0409-1000-0000000ff1ce}-c\readme.txt
  • %HOMEPATH%\pictures\desktop.ini.sola
  • %HOMEPATH%\downloads\desktop.ini.sola
  • C:\msocache\all users\{90140000-0117-0409-1000-0000000ff1ce}-c\readme.txt
  • C:\msocache\all users\{90140000-0043-0409-1000-0000000ff1ce}-c\readme.txt
  • %HOMEPATH%\saved games\readme.txt
  • %HOMEPATH%\desktop\telegram.lnk.sola
  • %HOMEPATH%\links\readme.txt
  • %HOMEPATH%\favorites\windows live\readme.txt
  • %HOMEPATH%\desktop\readme.txt
  • %HOMEPATH%\desktop\000814251_video_01.avi.sola
  • %HOMEPATH%\desktop\aoc_saq_d_v3_merchant.docx.sola
  • %HOMEPATH%\pictures\readme.txt
  • %HOMEPATH%\downloads\readme.txt
  • %HOMEPATH%\music\readme.txt
  • %HOMEPATH%\videos\readme.txt
  • %HOMEPATH%\contacts\readme.txt
  • %HOMEPATH%\favorites\readme.txt
  • %HOMEPATH%\documents\desktop.ini.sola
  • %HOMEPATH%\favorites\links\readme.txt
  • %HOMEPATH%\desktop\contosoroot.cer.sola
  • %HOMEPATH%\desktop\cveuropeo.doc.sola
  • %HOMEPATH%\favorites\links for united states\readme.txt
  • %HOMEPATH%\favorites\microsoft websites\readme.txt
  • %HOMEPATH%\desktop\desktop.ini.sola
  • %HOMEPATH%\favorites\msn websites\readme.txt
  • %HOMEPATH%\desktop\google chrome.lnk.sola
  • C:\readme.txt
  • %HOMEPATH%\desktop\archer.avi.sola
  • %HOMEPATH%\music\desktop.ini.sola
  • C:\kms\readme.txt
  • %HOMEPATH%\videos\desktop.ini.sola
  • %ProgramFiles%\microsoft office\document themes 14\readme.txt
  • %HOMEPATH%\favorites\msn websites\msn entertainment.url.sola
  • %HOMEPATH%\favorites\msn websites\msn autos.url.sola
  • %HOMEPATH%\favorites\msn websites\msnbc news.url.sola
  • %HOMEPATH%\favorites\msn websites\msn.url.sola
  • %HOMEPATH%\favorites\windows live\get windows live.url.sola
  • %HOMEPATH%\favorites\windows live\windows live mail.url.sola
  • %HOMEPATH%\favorites\windows live\windows live gallery.url.sola
  • %HOMEPATH%\favorites\windows live\windows live spaces.url.sola
  • %HOMEPATH%\links\desktop.ini.sola
  • %HOMEPATH%\links\recentplaces.lnk.sola
  • %HOMEPATH%\links\desktop.lnk.sola
  • %HOMEPATH%\saved games\desktop.ini.sola
  • %HOMEPATH%\links\downloads.lnk.sola
  • C:\$recycle.bin\s-1-5-21-3150914307-1777937420-491476919-1000\desktop.ini.sola
  • C:\kms\kms_vl_all_aio_debug.log.sola
  • C:\kms\kms_vl_all_aio.cmd.sola
  • %ProgramFiles%\microsoft office\office14\readme.txt
  • %HOMEPATH%\favorites\msn websites\msn money.url.sola
  • %HOMEPATH%\contacts\desktop.ini.sola
  • %HOMEPATH%\favorites\msn websites\msn sports.url.sola
  • %ProgramFiles(x86)%\windows defender\readme.txt
  • %ALLUSERSPROFILE%\package cache\{295d1583-fdb9-414b-a4c8-da539362a26b}\readme.txt
  • %HOMEPATH%\favorites\microsoft websites\microsoft at work.url.sola
  • %HOMEPATH%\favorites\links for united states\usa.gov.url.sola
  • %HOMEPATH%\favorites\links\web slice gallery.url.sola
  • %HOMEPATH%\favorites\microsoft websites\ie add-on site.url.sola
  • %HOMEPATH%\favorites\links for united states\gobiernousa.gov.url.sola
  • %HOMEPATH%\favorites\links for united states\desktop.ini.sola
  • %CommonProgramFiles%\designer\readme.txt
  • %HOMEPATH%\favorites\links\desktop.ini.sola
  • %CommonProgramFiles%\services\readme.txt
  • %HOMEPATH%\favorites\desktop.ini.sola
  • %CommonProgramFiles%\system\readme.txt
  • %ProgramFiles%\readme.txt
  • %ProgramFiles%\dvd maker\readme.txt
  • %HOMEPATH%\contacts\user.contact.sola
  • %ProgramFiles%\dvd maker\en-us\readme.txt
  • %ProgramFiles%\dvd maker\shared\readme.txt
  • %ProgramFiles%\internet explorer\en-us\readme.txt
  • %HOMEPATH%\favorites\microsoft websites\microsoft at home.url.sola
  • %ProgramFiles%\internet explorer\readme.txt
  • %HOMEPATH%\favorites\microsoft websites\ie site on microsoft.com.url.sola
  • %HOMEPATH%\favorites\microsoft websites\microsoft store.url.sola
  • %ALLUSERSPROFILE%\package cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\readme.txt
Deletes itself.
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Restarts the analyzed sample
Executes the following
  • '<Full path to file>' --food' (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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  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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