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Profil

Trojan.Encoder.31784

Added to the Dr.Web virus database: 2020-05-11

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '1' = '"%TEMP%\9EA3.tmp.exe"'
Creates or modifies the following files
  • <SYSTEM32>\tasks\nvngxupdatecheckdaily_{081131b0-31b0-31b0-31b0-081131b031b0}
Creates the following files on removable media
  • <Drive name for removable media>:\correct.avi
  • <Drive name for removable media>:\default.bmp
  • <Drive name for removable media>:\coffee.bmp
  • <Drive name for removable media>:\dashborder_96.bmp
  • <Drive name for removable media>:\dashborder_144.bmp
  • <Drive name for removable media>:\contoso.cer
Malicious functions
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Terminates or attempts to terminate
the following system processes:
  • <SYSTEM32>\dwm.exe
  • <SYSTEM32>\taskhost.exe
the following user processes:
  • iexplore.exe
Modifies file system
Creates the following files
  • %TEMP%\ae7f.tmp
  • C:\far2\documentation\rus\readme-warning.txt
  • C:\far2\documentation\eng\readme-warning.txt
  • C:\far2\addons\readme-warning.txt
  • C:\far2\addons\xlat\readme-warning.txt
  • C:\far2\addons\xlat\russian\readme-warning.txt
  • C:\far2\addons\shell\readme-warning.txt
  • C:\far2\addons\setup\readme-warning.txt
  • C:\far2\addons\macros\readme-warning.txt
  • C:\far2\addons\colors\readme-warning.txt
  • C:\far2\addons\colors\default_highlighting\readme-warning.txt
  • C:\far2\addons\colors\custom_highlighting\readme-warning.txt
  • D:\readme-warning.txt
  • %TEMP%\readme-warning.txt
  • %TEMP%\webinstaller\qnzuposrqouvfisa\readme-warning.txt
  • %TEMP%\temp1_fp_13.0.0.182_archive.zip\fp_13.0.0.182_archive\13_0_r0_182\readme-warning.txt
  • %TEMP%\opera installer\readme-warning.txt
  • %TEMP%\adobe_admlogs\readme-warning.txt
  • %HOMEPATH%\desktop\readme-warning.txt
  • C:\readme-warning.txt
  • %TEMP%\9ea3.tmp.exe
  • %APPDATA%\eaievws
  • C:\far2\encyclopedia\tap\readme-warning.txt
  • C:\far2\encyclopedia\readme-warning.txt
Sets the 'hidden' attribute to the following files
  • %APPDATA%\eaievws
Moves the following files
  • from %TEMP%\adobearm.log to %TEMP%\adobearm.log.kjhslgjkjdfg
  • from %TEMP%\jusched.log to %TEMP%\jusched.log.kjhslgjkjdfg
  • from %TEMP%\microsoft .net framework 4.5 setup_20150506_155317844.html to %TEMP%\microsoft .net framework 4.5 setup_20150506_155317844.html.kjhslgjkjdfg
  • from %TEMP%\microsoft .net framework 4.5.2 setup_20151216_212237215-msi_netfx_full_gdr_x64.msi.txt to %TEMP%\microsoft .net framework 4.5.2 setup_20151216_212237215-msi_netfx_full_gdr_x64.msi.txt.kjhslgjkjdfg
  • from %TEMP%\microsoft .net framework 4.5.2 setup_20151216_212237215.html to %TEMP%\microsoft .net framework 4.5.2 setup_20151216_212237215.html.kjhslgjkjdfg
  • from %TEMP%\microsoft visual c++ 2010 x86 redistributable setup_20150506_155226438.html to %TEMP%\microsoft visual c++ 2010 x86 redistributable setup_20150506_155226438.html.kjhslgjkjdfg
  • from %TEMP%\msi1cfbe.log to %TEMP%\msi1cfbe.log.kjhslgjkjdfg
  • from %TEMP%\msic204f.log to %TEMP%\msic204f.log.kjhslgjkjdfg
  • from %TEMP%\msie45bf.log to %TEMP%\msie45bf.log.kjhslgjkjdfg
  • from %TEMP%\wallpaper.bmp to %TEMP%\wallpaper.bmp.kjhslgjkjdfg
  • from %TEMP%\msieb217.log to %TEMP%\msieb217.log.kjhslgjkjdfg
  • from %TEMP%\rgie195.tmp to %TEMP%\rgie195.tmp.kjhslgjkjdfg
  • from %TEMP%\rgie195.tmp-tmp to %TEMP%\rgie195.tmp-tmp.kjhslgjkjdfg
  • from %TEMP%\setupexe(20151124155624744).log to %TEMP%\setupexe(20151124155624744).log.kjhslgjkjdfg
  • from %TEMP%\setupexe(201603101200226dc).log to %TEMP%\setupexe(201603101200226dc).log.kjhslgjkjdfg
  • from %TEMP%\setupexe(20160310140634718).log to %TEMP%\setupexe(20160310140634718).log.kjhslgjkjdfg
  • from %TEMP%\user.bmp to %TEMP%\user.bmp.kjhslgjkjdfg
  • from %TEMP%\jawshtml.html to %TEMP%\jawshtml.html.kjhslgjkjdfg
  • from %TEMP%\msid38c.log to %TEMP%\msid38c.log.kjhslgjkjdfg
  • from %TEMP%\javadeployreg.log to %TEMP%\javadeployreg.log.kjhslgjkjdfg
  • from %TEMP%\dd_setuputility.txt to %TEMP%\dd_setuputility.txt.kjhslgjkjdfg
  • from %TEMP%\adobearm_notlocked.log to %TEMP%\adobearm_notlocked.log.kjhslgjkjdfg
  • from %TEMP%\adobesfx.log to %TEMP%\adobesfx.log.kjhslgjkjdfg
  • from %TEMP%\ae7f.tmp to %TEMP%\ae7f.tmp.kjhslgjkjdfg
  • from %TEMP%\aspnetsetup.log to %TEMP%\aspnetsetup.log.kjhslgjkjdfg
  • from %TEMP%\aspnetsetup_00000.log to %TEMP%\aspnetsetup_00000.log.kjhslgjkjdfg
  • from %TEMP%\aspnetsetup_00001.log to %TEMP%\aspnetsetup_00001.log.kjhslgjkjdfg
  • from %TEMP%\dd_ndp452-kb2901907-x86-x64-allos-enu_decompression_log.txt to %TEMP%\dd_ndp452-kb2901907-x86-x64-allos-enu_decompression_log.txt.kjhslgjkjdfg
  • from %TEMP%\dd_vcredist_amd64_20151216210341.log to %TEMP%\dd_vcredist_amd64_20151216210341.log.kjhslgjkjdfg
  • from %TEMP%\dotnetfx.log to %TEMP%\dotnetfx.log.kjhslgjkjdfg
  • from %TEMP%\dd_vcredist_amd64_20151216210341_000_vcruntimeminimum_x64.log to %TEMP%\dd_vcredist_amd64_20151216210341_000_vcruntimeminimum_x64.log.kjhslgjkjdfg
  • from %TEMP%\dd_vcredist_amd64_20151216210341_001_vcruntimeadditional_x64.log to %TEMP%\dd_vcredist_amd64_20151216210341_001_vcruntimeadditional_x64.log.kjhslgjkjdfg
  • from %TEMP%\dd_vcredist_x86_20151216210157.log to %TEMP%\dd_vcredist_x86_20151216210157.log.kjhslgjkjdfg
  • from %TEMP%\dd_vcredist_x86_20151216210157_000_vcruntimeminimum_x86.log to %TEMP%\dd_vcredist_x86_20151216210157_000_vcruntimeminimum_x86.log.kjhslgjkjdfg
  • from %TEMP%\dd_vcredist_x86_20151216210157_001_vcruntimeadditional_x86.log to %TEMP%\dd_vcredist_x86_20151216210157_001_vcruntimeadditional_x86.log.kjhslgjkjdfg
  • from %TEMP%\dd_wcf_ca_smci_20151217_052858_840.txt to %TEMP%\dd_wcf_ca_smci_20151217_052858_840.txt.kjhslgjkjdfg
  • from %TEMP%\dd_wcf_ca_smci_20151217_052908_497.txt to %TEMP%\dd_wcf_ca_smci_20151217_052908_497.txt.kjhslgjkjdfg
  • from %TEMP%\dotnetfxsdk.log to %TEMP%\dotnetfxsdk.log.kjhslgjkjdfg
  • from %TEMP%\wmsetup.log to %TEMP%\wmsetup.log.kjhslgjkjdfg
Deletes itself.
Creates ransom message files (Trojan.Encoder).
Network activity
TCP
HTTP GET requests
  • http://gs#####netiplist.net/lok.exe
HTTP POST requests
  • http://gs######etiplist.download/sub/index.php
UDP
  • DNS ASK gs######etiplist.download
  • DNS ASK gs#####netiplist.net
Miscellaneous
Creates and executes the following
  • '%TEMP%\9ea3.tmp.exe'
  • '%TEMP%\9ea3.tmp.exe' n2920
  • '<SYSTEM32>\cmd.exe' ' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe'
  • '<SYSTEM32>\sc.exe' delete "ReportServer$OPTIMA"
  • '<SYSTEM32>\sc.exe' delete "msftesql$SQLEXPRESS"
  • '<SYSTEM32>\sc.exe' delete "postgresql-x64-9.4"
  • '<SYSTEM32>\sc.exe' delete WRSVC
  • '<SYSTEM32>\sc.exe' delete ekrn
  • '<SYSTEM32>\sc.exe' delete klim6
  • '<SYSTEM32>\sc.exe' delete "AVP18.0.0"
  • '<SYSTEM32>\sc.exe' delete KLIF
  • '<SYSTEM32>\sc.exe' delete klpd
  • '<SYSTEM32>\sc.exe' delete klflt
  • '<SYSTEM32>\sc.exe' delete klbackupdisk
  • '<SYSTEM32>\sc.exe' delete klbackupflt
  • '<SYSTEM32>\sc.exe' delete klkbdflt
  • '<SYSTEM32>\sc.exe' delete klmouflt
  • '<SYSTEM32>\sc.exe' delete klhk
  • '<SYSTEM32>\sc.exe' delete "KSDE1.0.0"
  • '<SYSTEM32>\sc.exe' delete kltap
  • '<SYSTEM32>\sc.exe' delete TmFilter
  • '<SYSTEM32>\sc.exe' delete TMLWCSService
  • '<SYSTEM32>\sc.exe' delete tmusa
  • '<SYSTEM32>\sc.exe' delete TmPreFilter
  • '<SYSTEM32>\sc.exe' delete TMSmartRelayService
  • '<SYSTEM32>\sc.exe' delete TMiCRCScanService
  • '<SYSTEM32>\sc.exe' delete VSApiNt
  • '<SYSTEM32>\sc.exe' delete TmCCSF
  • '<SYSTEM32>\sc.exe' delete tmlisten
  • '<SYSTEM32>\sc.exe' delete TmProxy
  • '<SYSTEM32>\sc.exe' delete ntrtscan
  • '<SYSTEM32>\sc.exe' delete ofcservice
  • '<SYSTEM32>\sc.exe' delete "SQLAgent$OPTIMA"
  • '<SYSTEM32>\vssvc.exe'
  • '<SYSTEM32>\sc.exe' delete "MSSQL$OPTIMA"
  • '<SYSTEM32>\sc.exe' delete "SQLAgent$WOLTERSKLUWER"
  • '<SYSTEM32>\sc.exe' delete vmickvpexchange
  • '<SYSTEM32>\sc.exe' delete vmicguestinterface
  • '<SYSTEM32>\sc.exe' delete vmicshutdown
  • '<SYSTEM32>\sc.exe' delete vmicheartbeat
  • '<SYSTEM32>\sc.exe' delete vmicrdv
  • '<SYSTEM32>\sc.exe' delete storflt
  • '<SYSTEM32>\sc.exe' delete vmictimesync
  • '<SYSTEM32>\sc.exe' delete vmicvss
  • '<SYSTEM32>\sc.exe' delete MSSQLFDLauncher
  • '<SYSTEM32>\sc.exe' delete MSSQLSERVER
  • '<SYSTEM32>\sc.exe' delete SQLSERVERAGENT
  • '<SYSTEM32>\sc.exe' delete SQLBrowser
  • '<SYSTEM32>\sc.exe' delete SQLTELEMETRY
  • '<SYSTEM32>\sc.exe' delete MsDtsServer130
  • '<SYSTEM32>\sc.exe' delete SSISTELEMETRY130
  • '<SYSTEM32>\sc.exe' delete SQLWriter
  • '<SYSTEM32>\sc.exe' delete "MSSQL$VEEAMSQL2012"
  • '<SYSTEM32>\sc.exe' delete "SQLAgent$VEEAMSQL2012"
  • '<SYSTEM32>\sc.exe' delete MSSQL
  • '<SYSTEM32>\sc.exe' delete SQLAgent
  • '<SYSTEM32>\sc.exe' delete MSSQLServerADHelper100
  • '<SYSTEM32>\sc.exe' delete MSSQLServerOLAPService
  • '<SYSTEM32>\sc.exe' delete MsDtsServer100
  • '<SYSTEM32>\sc.exe' delete ReportServer
  • '<SYSTEM32>\sc.exe' delete "SQLTELEMETRY$HL"
  • '<SYSTEM32>\sc.exe' delete TMBMServer
  • '<SYSTEM32>\sc.exe' delete "MSSQL$PROGID"
  • '<SYSTEM32>\sc.exe' delete "MSSQL$WOLTERSKLUWER"
  • '<SYSTEM32>\sc.exe' delete "SQLAgent$PROGID"
  • '<SYSTEM32>\sc.exe' delete "MSSQLFDLauncher$OPTIMA"
  • '<SYSTEM32>\svchost.exe' -k swprv

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