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Trojan.Encoder.32116

Added to the Dr.Web virus database: 2020-07-12

Virus description added:

Technical Information

To ensure autorun and distribution
Creates or modifies the following files
  • %APPDATA%\microsoft\windows\start menu\programs\startup\mystartup.lnk
Malicious functions
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Executes the following
  • '%WINDIR%\syswow64\net.exe' stop avpsus /y
  • '%WINDIR%\syswow64\net.exe' stop VeeamNFSSvc /y
  • '%WINDIR%\syswow64\net.exe' stop veeam /y
  • '%WINDIR%\syswow64\net.exe' stop PDVFSService /y
  • '%WINDIR%\syswow64\net.exe' stop BackupExecVSSProvider /y
  • '%WINDIR%\syswow64\net.exe' stop BackupExecAgentAccelerator /y
  • '%WINDIR%\syswow64\net.exe' stop BackupExecAgentBrowser /y
  • '%WINDIR%\syswow64\net.exe' stop BackupExecDiveciMediaService /y
  • '%WINDIR%\syswow64\net.exe' stop BackupExecManagementService /y
  • '%WINDIR%\syswow64\taskkill.exe' /IM mydesktopqos.exe /F
  • '%WINDIR%\syswow64\net.exe' stop BackupExecRPCService /y
  • '%WINDIR%\syswow64\net.exe' stop AcrSch2Svc /y
  • '%WINDIR%\syswow64\net.exe' stop AcronisAgent /y
  • '%WINDIR%\syswow64\net.exe' stop CASAD2DWebSvc /y
  • '%WINDIR%\syswow64\net.exe' stop CAARCUpdateSvc /y
  • '%WINDIR%\syswow64\net.exe' stop sophos /y
  • '%WINDIR%\syswow64\taskkill.exe' /IM mspub.exe /F
  • '%WINDIR%\syswow64\net.exe' stop VeeamDeploymentService /y
  • '%WINDIR%\syswow64\net.exe' stop BackupExecJobEngine /y
  • '%WINDIR%\syswow64\net.exe' stop VeeamTransportSvc /y
  • '%WINDIR%\syswow64\net.exe' stop SavRoam /y
  • '%WINDIR%\syswow64\net.exe' stop McAfeeDLPAgentService /y
  • '%WINDIR%\syswow64\net.exe' stop mfewc /y
  • '%WINDIR%\syswow64\net.exe' stop BMR Boot Service /y
  • '%WINDIR%\syswow64\net.exe' stop NetBackup BMR MTFTP Service /y
  • '%WINDIR%\syswow64\net.exe' stop DefWatch /y
  • '%WINDIR%\syswow64\net.exe' stop ccEvtMgr /y
  • '%WINDIR%\syswow64\net.exe' stop ccSetMgr /y
  • '%WINDIR%\syswow64\net.exe' stop RTVscan /y
  • '%WINDIR%\syswow64\net.exe' stop stc_raw_agent /y
  • '%WINDIR%\syswow64\net.exe' stop QBFCService /y
  • '%WINDIR%\syswow64\net.exe' stop QBIDPService /y
  • '%WINDIR%\syswow64\net.exe' stop Intuit.QuickBooks.FCS /y
  • '%WINDIR%\syswow64\net.exe' stop QBCFMonitorService /y
  • '%WINDIR%\syswow64\net.exe' stop YooBackup /y
  • '%WINDIR%\syswow64\net.exe' stop YooIT /y
  • '%WINDIR%\syswow64\net.exe' stop zhudongfangyu /y
  • '%WINDIR%\syswow64\net.exe' stop VSNAPVSS /y
  • '%WINDIR%\syswow64\taskkill.exe' /IM mydesktopservice.exe /F
Reads files which store third party applications passwords
  • %HOMEPATH%\desktop\64bit_notes.htm
  • %HOMEPATH%\desktop\alert.htm
  • %HOMEPATH%\desktop\applicantform_en.doc
  • %HOMEPATH%\desktop\february_catalogue__2015.doc
  • %HOMEPATH%\desktop\file_p_00000000_1371597592.docx
  • %HOMEPATH%\desktop\hanni_umami_chapter.doc
  • %HOMEPATH%\desktop\holycrosschurchinstructions.docx
  • %HOMEPATH%\desktop\ovp25012015.doc
  • %HOMEPATH%\desktop\region-north-karelia.jpeg
  • %HOMEPATH%\desktop\split.avi
  • %HOMEPATH%\desktop\tree_view.htm
  • %HOMEPATH%\desktop\trivial-merge.html
Modifies file system
Creates the following files
  • %TEMP%\mxbgzhjy.exe
  • C:\far2\plugins\ftp\ftpcmds_rus.txt.locked
  • C:\far2\plugins\ftp\notes.txt.locked
  • C:\far2\plugins\ftp\notes_rus.txt.locked
  • C:\far2\plugins\filecase\changelog.locked
  • C:\far2\plugins\farcmds\changelog.locked
  • C:\far2\plugins\emenu\changelog.locked
  • C:\far2\plugins\editcase\changelog.locked
  • C:\far2\plugins\drawline\changelog.locked
  • C:\far2\plugins\compare\changelog.locked
  • C:\far2\plugins\brackets\changelog.locked
  • C:\far2\plugins\autowrap\changelog.locked
  • C:\far2\plugins\ftp\changelog.locked
  • C:\far2\plugins\ftp\ftpcmds.txt.locked
  • C:\far2\plugins\arclite\changelog.locked
  • C:\far2\documentation\rus\arc_support.txt.locked
  • C:\far2\documentation\rus\bug_report.txt.locked
  • C:\far2\documentation\rus\far_faq.txt.locked
  • C:\far2\documentation\rus\plugins_install.txt.locked
  • C:\far2\documentation\rus\plugins_review.txt.locked
  • C:\far2\documentation\rus\techinfo.txt.locked
  • C:\far2\documentation\eng\arc_support.txt.locked
  • C:\far2\documentation\eng\bug_report.txt.locked
  • C:\far2\documentation\eng\far_faq.txt.locked
  • C:\far2\documentation\eng\plugins_install.txt.locked
  • C:\far2\documentation\eng\plugins_review.txt.locked
  • C:\far2\plugins\align\changelog.locked
  • C:\far2\fexcept\changelog.locked
  • C:\far2\plugins\hlfviewer\changelog.locked
  • C:\far2\plugins\macroview\changelog.locked
  • C:\far2\plugins\network\changelog.locked
  • %TEMP%\tmpe84.bat
  • %HOMEPATH%\desktop\13.jpeg.locked
  • %HOMEPATH%\desktop\2.jpg.locked
  • %HOMEPATH%\desktop\64bit_notes.htm.locked
  • %HOMEPATH%\desktop\alert.htm.locked
  • %HOMEPATH%\desktop\applicantform_en.doc.locked
  • %HOMEPATH%\desktop\february_catalogue__2015.doc.locked
  • C:\users\public\music\sample music\kalimba.mp3.locked
  • C:\users\public\music\sample music\maid with the flaxen hair.mp3.locked
  • C:\users\public\music\sample music\sleep away.mp3.locked
  • C:\users\all users\mozilla\logs\maintenanceservice-install.log.locked
  • C:\users\all users\mozilla\logs\maintenanceservice-uninstall.log.locked
  • %TEMP%\how_to_decypher_files.txt
  • C:\users\all users\microsoft\rac\statedata\racmetadata.dat.locked
  • C:\users\all users\microsoft\rac\statedata\racwmieventdata.dat.locked
  • %WINDIR%\serviceprofiles\networkservice\appdata\locallow\microsoft\cryptneturlcache\metadata\f0accf77cdcbff39f6191887f6d2d357
  • %WINDIR%\serviceprofiles\networkservice\appdata\locallow\microsoft\cryptneturlcache\content\f0accf77cdcbff39f6191887f6d2d357
  • C:\users\all users\microsoft\officesoftwareprotectionplatform\cache\cache.dat.locked
  • C:\users\all users\microsoft\network\downloader\qmgr0.dat.locked
  • C:\users\all users\microsoft\network\downloader\qmgr1.dat.locked
  • C:\far2\changelog.locked
  • C:\far2\pluginsdk\headers.pas\farcolorw.pas.locked
  • C:\far2\pluginsdk\headers.pas\farkeysw.pas.locked
  • C:\far2\pluginsdk\headers.pas\pluginw.pas.locked
  • C:\far2\plugins\tmppanel\changelog.locked
  • C:\far2\plugins\proclist\changelog.locked
  • C:\users\all users\microsoft\rac\statedata\racwmidatabookmarks.dat.locked
  • C:\far2\documentation\eng\techinfo.txt.locked
  • D:\install.log.locked
Deletes the following files
  • %TEMP%\tmpe84.bat
Changes user data files extensions (Trojan.Encoder).
Network activity
TCP
HTTP GET requests
  • http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
  • 'ra#.####ubusercontent.com':443
  • 'google.com':443
  • 'po###admin.com':443
  • UDP
    • DNS ASK google.com
    • DNS ASK ra#.####ubusercontent.com
    • DNS ASK po###admin.com
    Miscellaneous
    Searches for the following windows
    • ClassName: 'TaskManagerWindow' WindowName: 'Administrador de tareas'
    • ClassName: '#32770' WindowName: 'Task Manager'
    • ClassName: '#32770' WindowName: ''
    • ClassName: 'SysListView32' WindowName: 'Processes'
    • ClassName: '' WindowName: ''
    Creates and executes the following
    • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' Set-MpPreference -EnableControlledFolderAccess Disabled' (with hidden window)
    Executes the following
    • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' Set-MpPreference -EnableControlledFolderAccess Disabled
    • '%WINDIR%\syswow64\net1.exe' stop BMR Boot Service /y
    • '%WINDIR%\syswow64\net1.exe' stop YooIT /y
    • '%WINDIR%\syswow64\net1.exe' stop zhudongfangyu /y
    • '%WINDIR%\syswow64\net1.exe' stop VSNAPVSS /y
    • '%WINDIR%\syswow64\net1.exe' stop stc_raw_agent /y
    • '%WINDIR%\syswow64\net1.exe' stop ccSetMgr /y
    • '%WINDIR%\syswow64\net1.exe' stop sophos /y
    • '%WINDIR%\syswow64\net1.exe' stop CASAD2DWebSvc /y
    • '%WINDIR%\syswow64\net1.exe' stop CAARCUpdateSvc /y
    • '%WINDIR%\syswow64\net1.exe' stop AcrSch2Svc /y
    • '%WINDIR%\syswow64\net1.exe' stop AcronisAgent /y
    • '%WINDIR%\syswow64\net1.exe' stop BackupExecRPCService /y
    • '%WINDIR%\syswow64\net1.exe' stop VeeamDeploymentService /y
    • '%WINDIR%\syswow64\net1.exe' stop BackupExecDiveciMediaService /y
    • '%WINDIR%\syswow64\net1.exe' stop BackupExecJobEngine /y
    • '%WINDIR%\syswow64\net1.exe' stop DefWatch /y
    • '%WINDIR%\syswow64\net1.exe' stop ccEvtMgr /y
    • '%WINDIR%\syswow64\net1.exe' stop BackupExecAgentAccelerator /y
    • '%WINDIR%\syswow64\net1.exe' stop BackupExecAgentBrowser /y
    • '%WINDIR%\syswow64\net1.exe' stop PDVFSService /y
    • '%WINDIR%\syswow64\net1.exe' stop BackupExecVSSProvider /y
    • '%WINDIR%\syswow64\net1.exe' stop VeeamNFSSvc /y
    • '%WINDIR%\syswow64\net1.exe' stop veeam /y
    • '%WINDIR%\syswow64\net1.exe' stop VeeamTransportSvc /y
    • '%WINDIR%\syswow64\net1.exe' stop QBFCService /y
    • '%WINDIR%\syswow64\net1.exe' stop BackupExecManagementService /y
    • '%WINDIR%\syswow64\net1.exe' stop RTVscan /y
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=f: /on=f: /maxsize=unbounded
    • '%WINDIR%\syswow64\sc.exe' config SQLTELEMETRY start= disabled
    • '%WINDIR%\syswow64\sc.exe' config SQLTELEMETRY$ECWDB2 start= disabled
    • '%WINDIR%\syswow64\sc.exe' config SQLWriter start= disabled
    • '%WINDIR%\syswow64\sc.exe' config SstpSvc start= disabled
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=c: /on=c: /maxsize=401MB
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=c: /on=c: /maxsize=unbounded
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=d: /on=d: /maxsize=401MB
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=d: /on=d: /maxsize=unbounded
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=e: /on=e: /maxsize=401MB
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=e: /on=e: /maxsize=unbounded
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=f: /on=f: /maxsize=401MB
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=g: /on=g: /maxsize=401MB
    • '%WINDIR%\syswow64\net1.exe' stop QBIDPService /y
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=g: /on=g: /maxsize=unbounded
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=h: /on=h: /maxsize=401MB
    • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=h: /on=h: /maxsize=unbounded
    • '%WINDIR%\syswow64\cmd.exe' /c rd /s /q %SYSTEMDRIVE%\$Recycle.bin
    • '%WINDIR%\syswow64\net1.exe' stop avpsus /y
    • '%WINDIR%\syswow64\net1.exe' stop mfewc /y
    • '%WINDIR%\syswow64\net1.exe' stop NetBackup BMR MTFTP Service /y
    • '%WINDIR%\syswow64\net1.exe' stop McAfeeDLPAgentService /y
    • '%WINDIR%\syswow64\net1.exe' stop SavRoam /y
    • '%WINDIR%\syswow64\net1.exe' stop QBCFMonitorService /y
    • '%WINDIR%\syswow64\net1.exe' stop YooBackup /y
    • '%WINDIR%\syswow64\net1.exe' stop Intuit.QuickBooks.FCS /y
    • '%WINDIR%\syswow64\cmd.exe' /C %TEMP%\tmpE84.bat

    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.

    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.

    Find out more about Dr.Web for Android