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Profil

Trojan.Encoder.29755

Added to the Dr.Web virus database: 2019-10-12

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following files on removable media
  • <Drive name for removable media>:\correct.avi
  • <Drive name for removable media>:\indogerman2010.pptx
  • <Drive name for removable media>:\middaugh_keynote.pptx
  • <Drive name for removable media>:\samieee_obiee_presentation.pptx
  • <Drive name for removable media>:\ovp25012015.doc
  • <Drive name for removable media>:\508softwareandos.doc
  • <Drive name for removable media>:\lisp_success.doc
  • <Drive name for removable media>:\hanni_umami_chapter.doc
  • <Drive name for removable media>:\contoso_1.cer
  • <Drive name for removable media>:\contosoroot_1.cer
  • <Drive name for removable media>:\testee.cer
  • <Drive name for removable media>:\contosoroot.cer
  • <Drive name for removable media>:\sdkfailsafeemulator.cer
  • <Drive name for removable media>:\default.bmp
  • <Drive name for removable media>:\dial.bmp
  • <Drive name for removable media>:\dialmap.bmp
  • <Drive name for removable media>:\dashborder_192.bmp
  • <Drive name for removable media>:\dashborder_144.bmp
  • <Drive name for removable media>:\dashborder_96.bmp
  • <Drive name for removable media>:\split.avi
  • <Drive name for removable media>:\join.avi
  • <Drive name for removable media>:\!!! all your files are encrypted !!!.txt
  • <Drive name for removable media>:\hypothyroidism_slides.pptx
  • <Drive name for removable media>:\asaprojectcompetition.pptx
Malicious functions
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Modifies file system
Creates the following files
  • %TEMP%\2e3555f7.buran
  • unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\abcpy.ini
  • C:\far2\encyclopedia\tap\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\abcpy.ini.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi
  • C:\far2\fexcept\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\adobe\arm\s\!!! all your files are encrypted !!!.txt
  • C:\far2\encyclopedia\!!! all your files are encrypted !!!.txt
  • C:\far2\plugins\align\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab
  • C:\far2\plugins\autowrap\!!! all your files are encrypted !!!.txt
  • C:\far2\plugins\brackets\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • C:\far2\plugins\compare\!!! all your files are encrypted !!!.txt
  • C:\far2\plugins\drawline\!!! all your files are encrypted !!!.txt
  • C:\far2\plugins\arclite\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • unc\zywynhvecjp\users\all users\adobe\arm\s\armmanifest.msi.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • C:\far2\documentation\rus\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\adobe\arm\s\armmanifest.msi
  • C:\far2\addons\!!! all your files are encrypted !!!.txt
  • C:\far2\addons\colors\!!! all your files are encrypted !!!.txt
  • C:\far2\addons\colors\custom_highlighting\!!! all your files are encrypted !!!.txt
  • C:\far2\addons\colors\default_highlighting\!!! all your files are encrypted !!!.txt
  • C:\far2\addons\macros\!!! all your files are encrypted !!!.txt
  • C:\far2\addons\setup\!!! all your files are encrypted !!!.txt
  • C:\far2\addons\shell\!!! all your files are encrypted !!!.txt
  • C:\far2\!!! all your files are encrypted !!!.txt
  • C:\far2\addons\xlat\!!! all your files are encrypted !!!.txt
  • C:\far2\addons\xlat\russian\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\ntuser.pol.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • unc\zywynhvecjp\users\all users\!!! all your files are encrypted !!!.txt
  • C:\far2\documentation\eng\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\adobe\arm\reader_15.007.20033\readerdcmanifest.msi
  • unc\zywynhvecjp\users\all users\adobe\arm\reader_15.007.20033\readerdcmanifest.msi.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • unc\zywynhvecjp\users\all users\adobe\arm\reader_15.007.20033\!!! all your files are encrypted !!!.txt
  • unc\zywynhvecjp\users\all users\ntuser.pol
  • C:\far2\plugins\editcase\!!! all your files are encrypted !!!.txt
  • C:\far2\plugins\emenu\!!! all your files are encrypted !!!.txt
Sets the 'hidden' attribute to the following files
  • unc\zywynhvecjp\users\all users\ntuser.pol.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
Deletes the following files
  • %TEMP%\2e3555f7.buran
Moves the following files
  • from unc\zywynhvecjp\users\all users\ntuser.pol to unc\zywynhvecjp\users\all users\ntuser.pol.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • from unc\zywynhvecjp\users\all users\adobe\arm\reader_15.007.20033\readerdcmanifest.msi to unc\zywynhvecjp\users\all users\adobe\arm\reader_15.007.20033\readerdcmanifest.msi.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • from unc\zywynhvecjp\users\all users\adobe\arm\s\armmanifest.msi to unc\zywynhvecjp\users\all users\adobe\arm\s\armmanifest.msi.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • from unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\abcpy.ini to unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\abcpy.ini.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • from unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi to unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
  • from unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab to unc\zywynhvecjp\users\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab.{2489ead2-c08d-6c03-b0cd-b6b1fd51d432}
Modifies user data files (Trojan.Encoder).
Changes user data files extensions (Trojan.Encoder).
Network activity
UDP
  • DNS ASK ge###tool.com
  • DNS ASK ip##gger.ru
Miscellaneous
Creates and executes the following
  • '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} bootstatuspolicy ignoreallfailures' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C wevtutil.exe clear-log Security' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C wevtutil.exe clear-log Application' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C del "%userprofile%\documents\Default.rdp"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C attrib "%userprofile%\documents\Default.rdp" -s -h' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C reg add "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C wevtutil.exe clear-log System' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default" /va /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C wmic shadowcopy delete' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete backup' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete systemstatebackup -keepversions:0' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete systemstatebackup' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete catalog -quiet' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} recoveryenabled no' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C vssadmin delete shadows /all /quiet' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C sc config eventlog start=disabled' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
  • '%WINDIR%\syswow64\wevtutil.exe' clear-log System
  • '%WINDIR%\syswow64\cmd.exe' /C wevtutil.exe clear-log System
  • '%WINDIR%\syswow64\wevtutil.exe' clear-log Security
  • '%WINDIR%\syswow64\cmd.exe' /C wevtutil.exe clear-log Security
  • '%WINDIR%\syswow64\wevtutil.exe' clear-log Application
  • '%WINDIR%\syswow64\cmd.exe' /C wevtutil.exe clear-log Application
  • '%WINDIR%\syswow64\cmd.exe' /C del "%userprofile%\documents\Default.rdp"
  • '%WINDIR%\syswow64\attrib.exe' "%HOMEPATH%\documents\Default.rdp" -s -h
  • '%WINDIR%\syswow64\cmd.exe' /C attrib "%userprofile%\documents\Default.rdp" -s -h
  • '%WINDIR%\syswow64\reg.exe' add "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers"
  • '%WINDIR%\syswow64\cmd.exe' /C reg add "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers"
  • '%WINDIR%\syswow64\reg.exe' delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers" /f
  • '%WINDIR%\syswow64\cmd.exe' /C reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers" /f
  • '%WINDIR%\syswow64\reg.exe' delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default" /va /f
  • '%WINDIR%\syswow64\cmd.exe' /C reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default" /va /f
  • '%WINDIR%\syswow64\cmd.exe' /C vssadmin delete shadows /all /quiet
  • '<SYSTEM32>\vssvc.exe'
  • '%WINDIR%\syswow64\cmd.exe' /C wmic shadowcopy delete
  • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete backup
  • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete systemstatebackup -keepversions:0
  • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete systemstatebackup
  • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete catalog -quiet
  • '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} recoveryenabled no
  • '%WINDIR%\syswow64\cmd.exe' /C sc config eventlog start=disabled
  • '%WINDIR%\syswow64\sc.exe' config eventlog start=disabled

Recommandations pour le traitement

  1. Si le système d'exploitation peut être démarré (en mode normal ou en mode sans échec), téléchargez Dr.Web Security Space et lancez un scan complet de votre ordinateur et de tous les supports amovibles que vous utilisez. En savoir plus sur Dr.Web Security Space.
  2. Si le démarrage du système d'exploitation est impossible, veuillez modifier les paramètres du BIOS de votre ordinateur pour démarrer votre ordinateur via CD/DVD ou clé USB. Téléchargez l'image du disque de secours de restauration du système Dr.Web® LiveDisk ou l'utilitaire pour enregistrer Dr.Web® LiveDisk sur une clé USB, puis préparez la clé USB appropriée. Démarrez l'ordinateur à l'aide de cette clé et lancez le scan complet et le traitement des menaces détectées.

Veuillez lancer le scan complet du système à l'aide de Dr.Web Antivirus pour Mac OS.

Veuillez lancer le scan complet de toutes les partitions du disque à l'aide de Dr.Web Antivirus pour Linux.

  1. Si votre appareil mobile fonctionne correctement, veuillez télécharger et installer sur votre appareil mobile Dr.Web pour Android. Lancez un scan complet et suivez les recommandations sur la neutralisation des menaces détectées.
  2. Si l'appareil mobile est bloqué par le Trojan de la famille Android.Locker (un message sur la violation grave de la loi ou la demande d'une rançon est affiché sur l'écran de l'appareil mobile), procédez comme suit:
    • démarrez votre Smartphone ou votre tablette en mode sans échec (si vous ne savez pas comment faire, consultez la documentation de l'appareil mobile ou contactez le fabricant) ;
    • puis téléchargez et installez sur votre appareil mobile Dr.Web pour Android et lancez un scan complet puis suivez les recommandations sur la neutralisation des menaces détectées ;
    • Débranchez votre appareil et rebranchez-le.

En savoir plus sur Dr.Web pour Android