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Trojan.Encoder.26931

Aggiunto al database dei virus Dr.Web: 2018-12-25

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\desktop.ini
  • %HOMEPATH%\Start Menu\Programs\Startup\RyukReadMe.txt
  • %HOMEPATH%\Start Menu\Programs\Startup\Shortcut to startup_local.lnk
  • %HOMEPATH%\Start Menu\Programs\Startup\desktop.ini
Infects the following executable files:
  • C:\Far2\Plugins\arclite\7zSD.sfx
  • C:\Far2\Plugins\arclite\7z.sfx
  • C:\Far2\Plugins\arclite\7zS2.sfx
  • C:\Far2\Plugins\arclite\7zS2con.sfx
  • C:\Far2\Plugins\arclite\7zCon.sfx
  • C:\Far2\Plugins\FTP\lib\ftpDirList.fll
  • C:\Far2\Plugins\FTP\lib\ftpProgress.fll
  • %CommonProgramFiles%\Microsoft Shared\Speech\sapi.cpl
  • %CommonProgramFiles%\Microsoft Shared\MSInfo\IEINFO5.OCX
  • %CommonProgramFiles%\Microsoft Shared\TextConv\mswrd632.wpc
  • %CommonProgramFiles%\Microsoft Shared\TextConv\mswrd832.cnv
  • %CommonProgramFiles%\Microsoft Shared\TextConv\html32.cnv
  • %CommonProgramFiles%\Microsoft Shared\TextConv\write32.wpc
  • %CommonProgramFiles%\Microsoft Shared\Triedit\DHTMLED.OCX
Malicious functions:
Injects code into
the following system processes:
  • <SYSTEM32>\ctfmon.exe
a large number of user processes.
Modifies file system:
Creates the following files:
  • C:\Documents and Settings\Default User\dwkBD.exe
  • C:\Far2\Plugins\WinSCP\filezilla\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\fari\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\far\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\dragext\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\core\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\console\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\components\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\RyukReadMe.txt
  • C:\Far2\Plugins\TmpPanel\RyukReadMe.txt
  • C:\Muldrop\exlBD.fyf_0
  • C:\Far2\Plugins\ProcList\RyukReadMe.txt
  • C:\Far2\Plugins\MacroView\RyukReadMe.txt
  • C:\Far2\Plugins\HlfViewer\RyukReadMe.txt
  • C:\Far2\Plugins\FTP\lib\RyukReadMe.txt
  • C:\Far2\Plugins\FTP\RyukReadMe.txt
  • C:\Far2\Plugins\FileCase\RyukReadMe.txt
  • C:\Far2\Plugins\FarCmds\RyukReadMe.txt
  • C:\Far2\Plugins\ExtSearch\sources\RegExp\RyukReadMe.txt
  • C:\Far2\Plugins\ExtSearch\sources\RyukReadMe.txt
  • C:\Far2\Plugins\ExtSearch\keys\RyukReadMe.txt
  • C:\Far2\Plugins\Network\RyukReadMe.txt
  • C:\Far2\Plugins\ExtSearch\doc\RyukReadMe.txt
  • C:\Far2\Plugins\ExtSearch\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\packages\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\forms\RyukReadMe.txt
  • %ProgramFiles%\RyukReadMe.txt
  • C:\Muldrop\dmp_0x184_0x20000
  • C:\Muldrop\RyukReadMe.txt
  • C:\Muldrop\dmp_0x184_0x10000
  • C:\Far2\PluginSDK\Headers.pas\RyukReadMe.txt
  • C:\Far2\PluginSDK\Headers.c\RyukReadMe.txt
  • C:\Far2\PluginSDK\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\windows\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\lib\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\resource\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\filezilla\misc\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\putty\charset\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\putty\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\packages\theme\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\packages\tbx\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\packages\tb2k\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\packages\my\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\packages\filemng\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\packages\dragndrop\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\release\RyukReadMe.txt
  • %HOMEPATH%\My Documents\RyukReadMe.txt
  • C:\Far2\Plugins\WinSCP\putty\windows\RyukReadMe.txt
  • C:\Far2\Plugins\AutoWrap\RyukReadMe.txt
  • C:\Far2\Addons\SetUp\RyukReadMe.txt
  • C:\Far2\Addons\Macros\RyukReadMe.txt
  • C:\Far2\Addons\Colors\Default Highlighting\RyukReadMe.txt
  • C:\Far2\Addons\Colors\Custom Highlighting\RyukReadMe.txt
  • C:\Far2\Addons\Colors\RyukReadMe.txt
  • C:\Far2\Addons\RyukReadMe.txt
  • C:\Far2\RyukReadMe.txt
  • %HOMEPATH%\Templates\RyukReadMe.txt
  • %HOMEPATH%\Start Menu\Programs\Accessories\Entertainment\RyukReadMe.txt
  • C:\Far2\Plugins\DrawLine\RyukReadMe.txt
  • %HOMEPATH%\Start Menu\Programs\Accessories\Accessibility\RyukReadMe.txt
  • %HOMEPATH%\Start Menu\Programs\RyukReadMe.txt
  • %HOMEPATH%\Start Menu\RyukReadMe.txt
  • %HOMEPATH%\SendTo\RyukReadMe.txt
  • %HOMEPATH%\Recent\RyukReadMe.txt
  • %HOMEPATH%\PrintHood\RyukReadMe.txt
  • %HOMEPATH%\NetHood\RyukReadMe.txt
  • %HOMEPATH%\My Documents\My Received Files\RyukReadMe.txt
  • %HOMEPATH%\My Documents\My Pictures\RyukReadMe.txt
  • %HOMEPATH%\My Documents\My Music\RyukReadMe.txt
  • %HOMEPATH%\Start Menu\Programs\Accessories\RyukReadMe.txt
  • C:\Far2\Plugins\EMenu\RyukReadMe.txt
  • C:\Far2\Plugins\EditCase\RyukReadMe.txt
  • C:\Far2\Documentation\RyukReadMe.txt
  • C:\Far2\Addons\XLat\RyukReadMe.txt
  • C:\Far2\Plugins\Compare\RyukReadMe.txt
  • C:\Far2\Plugins\Colorer\hrd\console\contrib\RyukReadMe.txt
  • C:\Far2\Plugins\Colorer\hrd\console\RyukReadMe.txt
  • C:\Far2\Plugins\Colorer\hrd\RyukReadMe.txt
  • C:\Far2\Plugins\Colorer\hrc\auto\types\RyukReadMe.txt
  • C:\Far2\Plugins\Colorer\hrc\auto\RyukReadMe.txt
  • C:\Far2\Plugins\Colorer\hrc\RyukReadMe.txt
  • C:\Far2\Plugins\Colorer\bin\RyukReadMe.txt
  • C:\Far2\Addons\XLat\Russian\RyukReadMe.txt
  • C:\Far2\Plugins\Colorer\RyukReadMe.txt
  • C:\Far2\Addons\Shell\RyukReadMe.txt
  • C:\Far2\Plugins\arclite\RyukReadMe.txt
  • C:\Far2\Plugins\Align\RyukReadMe.txt
  • C:\Far2\Plugins\7-Zip\RyukReadMe.txt
  • C:\Far2\Plugins\RyukReadMe.txt
  • C:\Far2\FExcept\RyukReadMe.txt
  • C:\Far2\Encyclopedia\RyukReadMe.txt
  • C:\Far2\Documentation\rus\RyukReadMe.txt
  • C:\Far2\Documentation\eng\RyukReadMe.txt
  • C:\Far2\Plugins\Brackets\RyukReadMe.txt
  • %HOMEPATH%\My Documents\Downloads\RyukReadMe.txt
  • C:\Muldrop\dmp_0x2c8_0x30000000
  • C:\Muldrop\dmp_0x3d0_0x30000000
  • C:\Muldrop\dmp_0x4a8_0x30000000
  • C:\Muldrop\dmp_0x470_0x30000000
  • C:\Muldrop\dmp_0x480_0x30000000
  • C:\Muldrop\dmp_0x4e8_0x30000000
  • C:\Muldrop\dmp_0x390_0x30000000
  • C:\Muldrop\dmp_0x410_0x30000000
  • C:\Muldrop\dmp_0x3a8_0x30000000
  • C:\Muldrop\dmp_0x3b8_0x30000000
  • C:\Muldrop\dmp_0x448_0x30000000
  • C:\Muldrop\dmp_0x3d8_0x30000000
  • C:\Muldrop\dmp_0x3c8_0x30000000
  • C:\Muldrop\dmp_0x318_0x30000000
  • C:\Muldrop\dmp_0x428_0x30000000
  • C:\Muldrop\dmp_0x478_0x30000000
  • C:\Muldrop\dmp_0x360_0x30000000
  • C:\Muldrop\dmp_0x430_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\Speech\1033\RyukReadMe.txt
  • C:\Muldrop\dmp_0x7c_0x30000000
  • C:\Muldrop\dmp_0x488_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\Speech\RyukReadMe.txt
  • C:\Muldrop\dmp_0x2b8_0x30000000
  • C:\Muldrop\dmp_0x4d8_0x30000000
  • C:\Muldrop\dmp_0x4b0_0x30000000
  • C:\Muldrop\dmp_0x460_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\VGX\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\VC\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\Triedit\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\TextConv\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\Stationery\RyukReadMe.txt
  • C:\Muldrop\dmp_0x3e8_0x30000000
  • C:\Muldrop\dmp_0x468_0x30000000
  • C:\Muldrop\dmp_0x348_0x30000000
  • C:\Muldrop\dmp_0x4e0_0x30000000
  • C:\Muldrop\dmp_0x418_0x30000000
  • C:\Muldrop\dmp_0x398_0x30000000
  • C:\Muldrop\dmp_0x3a0_0x30000000
  • C:\Muldrop\dmp_0x4c8_0x30000000
  • C:\Muldrop\dmp_0x2c4_0x30000000
  • C:\Muldrop\dmp_0x440_0x30000000
  • C:\Muldrop\dmp_0x388_0x30000000
  • C:\Muldrop\dmp_0x328_0x30000000
  • C:\Muldrop\dmp_0x4d0_0x30000000
  • C:\Muldrop\dmp_0x2f8_0x30000000
  • C:\Muldrop\dmp_0x4c0_0x30000000
  • C:\Muldrop\dmp_0x370_0x30000000
  • %CommonProgramFiles%\RyukReadMe.txt
  • C:\Muldrop\dmp_0x380_0x30000000
  • C:\Muldrop\dmp_0x438_0x30000000
  • C:\Muldrop\dmp_0x408_0x30000000
  • C:\Muldrop\dmp_0x4a0_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\DW\1028\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\DW\1025\RyukReadMe.txt
  • C:\Muldrop\dmp_0x3f0_0x30000000
  • C:\Muldrop\dmp_0x340_0x30000000
  • C:\Muldrop\dmp_0x2d8_0x30000000
  • C:\Muldrop\dmp_0x2e0_0x30000000
  • C:\Muldrop\dmp_0x400_0x30000000
  • C:\Muldrop\dmp_0x368_0x30000000
  • C:\Muldrop\dmp_0x310_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\MSInfo\RyukReadMe.txt
  • C:\Muldrop\dmp_0x2f0_0x30000000
  • C:\Muldrop\dmp_0x308_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\DW\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\DAO\RyukReadMe.txt
  • C:\Muldrop\dmp_0x320_0x30000000
  • C:\Muldrop\dmp_0x358_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\RyukReadMe.txt
  • C:\Muldrop\dmp_0x330_0x30000000
  • C:\Muldrop\dmp_0x350_0x30000000
  • C:\Muldrop\dmp_0x420_0x30000000
  • C:\Muldrop\dmp_0x3c0_0x30000000
  • C:\Muldrop\dmp_0x300_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\DW\1041\RyukReadMe.txt
  • C:\Muldrop\dmp_0x2d0_0x30000000
  • C:\Muldrop\dmp_0x338_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\DW\3082\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\DW\2052\RyukReadMe.txt
  • C:\Muldrop\dmp_0x498_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\DW\1042\RyukReadMe.txt
  • C:\Muldrop\dmp_0x3b0_0x30000000
  • C:\Muldrop\dmp_0x3e0_0x30000000
  • C:\Muldrop\dmp_0x4f0_0x30000000
  • C:\Muldrop\dmp_0x378_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\DW\1031\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\DW\1040\RyukReadMe.txt
  • C:\Muldrop\dmp_0x4b8_0x30000000
  • C:\Muldrop\dmp_0x458_0x30000000
  • %CommonProgramFiles%\Microsoft Shared\DW\1036\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\DW\1033\RyukReadMe.txt
  • C:\Muldrop\dmp_0x2e8_0x30000000
  • C:\Muldrop\dmp_0x490_0x30000000
  • C:\Muldrop\dmp_0x450_0x30000000
  • C:\Muldrop\dmp_0x3f8_0x30000000
  • %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\YPORKZYZ\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\U98D4X8H\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\Temp\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\History\History.IE5\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\History\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\Application Data\Microsoft\Windows Media\9.0\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\Application Data\Microsoft\Windows Media\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\Application Data\Microsoft\Media Player\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\Application Data\Microsoft\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\Application Data\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\<INETFILES>\Content.IE5\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Desktop\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Cookies\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\My\CTLs\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\My\CRLs\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\My\Certificates\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\My\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Media Player\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Internet Explorer\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Favorites\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\Microsoft\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Application Data\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\Media Player\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\Internet Explorer\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\Credentials\S-1-5-19\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\Credentials\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Templates\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Start Menu\Programs\Startup\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Start Menu\Programs\Accessories\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Start Menu\Programs\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Start Menu\RyukReadMe.txt
  • C:\Documents and Settings\Default User\SendTo\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Recent\RyukReadMe.txt
  • C:\Documents and Settings\Default User\PrintHood\RyukReadMe.txt
  • C:\Documents and Settings\Default User\NetHood\RyukReadMe.txt
  • C:\Documents and Settings\Default User\My Documents\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\<INETFILES>\Content.IE5\YPORKZYZ\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Start Menu\Programs\Accessories\Accessibility\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\<INETFILES>\Content.IE5\U98D4X8H\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Start Menu\Programs\Accessories\Entertainment\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Templates\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Favorites\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Network\Connections\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Network\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Media Player\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Media Index\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\HTML Help\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Dr Watson\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA\S-1-5-18\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA\MachineKeys\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Network\Connections\Pbk\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\DSS\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\RyukReadMe.txt
  • %ALLUSERSPROFILE%\RyukReadMe.txt
  • C:\Documents and Settings\RyukReadMe.txt
  • <Current directory>\RyukReadMe.txt
  • C:\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA\MachineKeys\08e575673cce10c72090304839888e02_23ef5514-3059-436f-a4a7-4cefaab20eb1
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\DSS\MachineKeys\RyukReadMe.txt
  • C:\Documents and Settings\Default User\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\My\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Network\Connections\Cm\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\Games\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\Administrative Tools\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\Accessories\System Tools\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\Accessories\Entertainment\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\Accessories\Communications\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\Accessories\Accessibility\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\Accessories\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\Programs\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Start Menu\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\My Videos\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\My Pictures\Sample Pictures\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\My Pictures\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\My Music\Sample Playlists\0338E140\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\My Music\Sample Playlists\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\My Music\Sample Music\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\My Music\My Playlists\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\My Music\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Documents\RyukReadMe.txt
  • %ALLUSERSPROFILE%\DRM\RyukReadMe.txt
  • %ALLUSERSPROFILE%\Desktop\RyukReadMe.txt
  • C:\Documents and Settings\Default User\Local Settings\<INETFILES>\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\My\Certificates\RyukReadMe.txt
  • %HOMEPATH%\Desktop\RyukReadMe.txt
  • %APPDATA%\Microsoft\MMC\RyukReadMe.txt
  • %HOMEPATH%\Cookies\RyukReadMe.txt
  • %APPDATA%\Microsoft\Windows\Themes\RyukReadMe.txt
  • %APPDATA%\Microsoft\Windows\RyukReadMe.txt
  • %APPDATA%\Microsoft\SystemCertificates\My\CTLs\RyukReadMe.txt
  • %APPDATA%\Microsoft\SystemCertificates\My\CRLs\RyukReadMe.txt
  • %APPDATA%\Microsoft\SystemCertificates\My\Certificates\RyukReadMe.txt
  • %APPDATA%\Microsoft\SystemCertificates\My\RyukReadMe.txt
  • %APPDATA%\Microsoft\SystemCertificates\RyukReadMe.txt
  • %APPDATA%\RyukReadMe.txt
  • %HOMEPATH%\Favorites\RyukReadMe.txt
  • %APPDATA%\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}\RyukReadMe.txt
  • %APPDATA%\Microsoft\Internet Explorer\RyukReadMe.txt
  • %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-2052111302-484763869-725345543-1003\RyukReadMe.txt
  • %APPDATA%\Microsoft\Crypto\RSA\RyukReadMe.txt
  • %APPDATA%\Microsoft\Crypto\RyukReadMe.txt
  • %APPDATA%\Microsoft\Credentials\S-1-5-21-2052111302-484763869-725345543-1003\RyukReadMe.txt
  • %APPDATA%\Microsoft\Credentials\RyukReadMe.txt
  • %APPDATA%\Microsoft\Address Book\RyukReadMe.txt
  • %APPDATA%\Microsoft\RyukReadMe.txt
  • %APPDATA%\Microsoft\Internet Explorer\Quick Launch\RyukReadMe.txt
  • %APPDATA%\Microsoft\Media Player\RyukReadMe.txt
  • %HOMEPATH%\Favorites\Links\RyukReadMe.txt
  • <LS_APPDATA>\Microsoft\Windows\RyukReadMe.txt
  • <LS_APPDATA>\Microsoft\Windows Media\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\<INETFILES>\RyukReadMe.txt
  • %TEMP%\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\History\History.IE5\MSHist012011111020111111\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\History\History.IE5\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\History\RyukReadMe.txt
  • <LS_APPDATA>\VMware\RyukReadMe.txt
  • <LS_APPDATA>\Microsoft\Windows Media\9.0\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\RyukReadMe.txt
  • %HOMEPATH%\Local Settings\RyukReadMe.txt
  • <LS_APPDATA>\RyukReadMe.txt
  • <LS_APPDATA>\Microsoft\Credentials\S-1-5-21-2052111302-484763869-725345543-1003\RyukReadMe.txt
  • <LS_APPDATA>\Microsoft\Credentials\RyukReadMe.txt
  • <LS_APPDATA>\Microsoft\CD Burning\RyukReadMe.txt
  • <LS_APPDATA>\Microsoft\RyukReadMe.txt
  • <LS_APPDATA>\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}\Microsoft\Outlook Express\RyukReadMe.txt
  • <LS_APPDATA>\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}\Microsoft\RyukReadMe.txt
  • <LS_APPDATA>\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}\RyukReadMe.txt
  • <LS_APPDATA>\Identities\RyukReadMe.txt
  • <LS_APPDATA>\Microsoft\Media Player\RyukReadMe.txt
  • %APPDATA%\Identities\RyukReadMe.txt
  • %HOMEPATH%\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\My\CRLs\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\<INETFILES>\Content.IE5\MOE00UY1\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\<INETFILES>\Content.IE5\LBMMC3H3\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\<INETFILES>\Content.IE5\CJCTQ25G\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\<INETFILES>\Content.IE5\BGGTYMH1\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\<INETFILES>\Content.IE5\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\<INETFILES>\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\Credentials\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\Temp\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\History\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Windows\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Credentials\S-1-5-19\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Credentials\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\Application Data\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Cookies\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\My\CTLs\RyukReadMe.txt
  • C:\Documents and Settings\LocalService\Local Settings\History\History.IE5\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\Credentials\S-1-5-20\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\Internet Explorer\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\<INETFILES>\Content.IE5\YPORKZYZ\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Credentials\S-1-5-20\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\<INETFILES>\Content.IE5\U98D4X8H\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\<INETFILES>\Content.IE5\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\<INETFILES>\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\Temp\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\History\History.IE5\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\History\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Windows\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Credentials\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\Media Player\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\Application Data\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Local Settings\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Cookies\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\My\CTLs\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\My\CRLs\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\My\Certificates\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\My\RyukReadMe.txt
  • C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\Web Folders\RyukReadMe.txt
  • %CommonProgramFiles%\Microsoft Shared\web server extensions\RyukReadMe.txt
Deletes the following files:
  • <Full path to file>
Moves the following files:
  • from %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA\MachineKeys\08e575673cce10c72090304839888e02_23ef5514-3059-436f-a4a7-4cefaab20eb1 to %ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA\MachineKeys\08e575673cce10c72090304839888e02_23ef5514-3059-436f-a4a7-4cefaab20eb1.RYK
  • from %APPDATA%\Microsoft\Address Book\%USERNAME%.wab~ to %APPDATA%\Microsoft\Address Book\%USERNAME%.wab~.RYK
  • from %APPDATA%\desktop.ini to %APPDATA%\desktop.ini.RYK
  • from %APPDATA%\Microsoft\Address Book\%USERNAME%.wab to %APPDATA%\Microsoft\Address Book\%USERNAME%.wab.RYK
  • from %APPDATA%\Microsoft\Internet Explorer\brndlog.bak to %APPDATA%\Microsoft\Internet Explorer\brndlog.bak.RYK
  • from %APPDATA%\Microsoft\Internet Explorer\Desktop.htt to %APPDATA%\Microsoft\Internet Explorer\Desktop.htt.RYK
  • from %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Show Desktop.scf to %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Show Desktop.scf.RYK
  • from %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Launch Internet Explorer Browser.lnk to %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Launch Internet Explorer Browser.lnk.RYK
  • from %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Windows Media Player.lnk to %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Windows Media Player.lnk.RYK
  • from %APPDATA%\Microsoft\Internet Explorer\brndlog.txt to %APPDATA%\Microsoft\Internet Explorer\brndlog.txt.RYK
  • from %APPDATA%\Microsoft\Internet Explorer\Quick Launch\desktop.ini to %APPDATA%\Microsoft\Internet Explorer\Quick Launch\desktop.ini.RYK
  • from %APPDATA%\Microsoft\Media Player\0007F0B7.wpl to %APPDATA%\Microsoft\Media Player\0007F0B7.wpl.RYK
  • from %APPDATA%\winscp.rnd to %APPDATA%\winscp.rnd.RYK
  • from C:\Muldrop\dmp_0x184_0x20000 to C:\Muldrop\dmp_0x184_0x20000.RYK
  • from C:\Muldrop\exlBD.fyf_0 to C:\Muldrop\exlBD.fyf_0.RYK
  • from C:\Muldrop\dmp_0x184_0x10000 to C:\Muldrop\dmp_0x184_0x10000.RYK
Modifies user data files (Trojan.Encoder).
Changes user data files extensions (Trojan.Encoder).
Miscellaneous:
Creates and executes the following:
  • 'C:\Documents and Settings\Default User\dwkBD.exe' <Full path to file>

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.
Download Dr.Web

Download by serial number

Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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

Download Dr.Web

Download by serial number

  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.

Find out more about Dr.Web for Android