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Added to the Dr.Web virus database: 2020-06-02

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'MNZartugV' = '%APPDATA%\coronavirus.exe'
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Update Assistant' = '"%APPDATA%\winupas.exe" *'
Creates or modifies the following files
  • <SYSTEM32>\tasks\jfgp7zj
  • <SYSTEM32>\tasks\nyhhnkywfqce
Creates the following files on removable media
  • <Drive name for removable media>:\я
  • <Drive name for removable media>:\gruenspecht_02172016.pptx
  • <Drive name for removable media>:\iso27k_isms_implementation_and_certification_process_overview_v2.pptx
  • <Drive name for removable media>:\hypothyroidism_slides.pptx
  • <Drive name for removable media>:\waterresourcesag.pptx
  • <Drive name for removable media>:\stoc13_ml_quoc_le.pptx
  • <Drive name for removable media>:\notepad.exe
  • <Drive name for removable media>:\calc.exe
  • <Drive name for removable media>:\dotnetfx45_full_setup.exe
  • <Drive name for removable media>:\chromesetup.exe
  • <Drive name for removable media>:\winmine.exe
  • <Drive name for removable media>:\utorrent.exe
  • <Drive name for removable media>:\february_catalogue__2015.doc
  • <Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc
  • <Drive name for removable media>:\applicantform_en.doc
  • <Drive name for removable media>:\weeklysheet1215.doc
  • <Drive name for removable media>:\fi51.doc
  • <Drive name for removable media>:\hanni_umami_chapter.doc
  • <Drive name for removable media>:\testee.cer
  • <Drive name for removable media>:\contoso.cer
  • <Drive name for removable media>:\pmd.cer
  • <Drive name for removable media>:\contoso_1.cer
  • <Drive name for removable media>:\sdkfailsafeemulator.cer
  • <Drive name for removable media>:\testcertificate.cer
  • <Drive name for removable media>:\toolbar.bmp
  • <Drive name for removable media>:\dashborder_144.bmp
  • <Drive name for removable media>:\dashborder_96.bmp
  • <Drive name for removable media>:\archer.avi
  • <Drive name for removable media>:\how to recover encrypted files.txt
  • <Drive name for removable media>:\split.avi
  • <Drive name for removable media>:\asaprojectcompetition.pptx
  • <Drive name for removable media>:\roozenedowebinar.pptx
Modifies file system
Creates the following files
  • %TEMP%\kernal.exe
  • %TEMP%\system.exe
  • %APPDATA%\coronavirus.exe
  • %APPDATA%\chost.exe
  • %APPDATA%\curl.exe
  • %APPDATA%\svchost.exe
  • %WINDIR%\serviceprofiles\networkservice\appdata\locallow\microsoft\cryptneturlcache\metadata\f0accf77cdcbff39f6191887f6d2d357
  • %WINDIR%\serviceprofiles\networkservice\appdata\locallow\microsoft\cryptneturlcache\content\f0accf77cdcbff39f6191887f6d2d357
  • %TEMP%\$tmp$001.exe
  • %APPDATA%\winupas.exe
Deletes the following files
  • %TEMP%\kernal.exe
  • %TEMP%\system.exe
  • %APPDATA%\coronavirus.exe
  • %APPDATA%\chost.exe
  • %APPDATA%\svchost.exe
  • <Drive name for removable media>:\я
Substitutes the following files
  • %APPDATA%\coronavirus.exe
Changes user data files extensions (Trojan.Encoder).
Network activity
HTTP GET requests
  • '':443
  • UDP
    • DNS ASK
    • DNS ASK
    • DNS ASK
    Searches for the following windows
    • ClassName: 'EDIT' WindowName: ''
    • ClassName: 'MS_AutodialMonitor' WindowName: ''
    • ClassName: 'MS_WebCheckMonitor' WindowName: ''
    Creates and executes the following
    • '%TEMP%\kernal.exe' -s -pdfgsrdgersfgersfgrsdrg
    • '%TEMP%\system.exe'
    • '%TEMP%\system.exe' runas
    • '%APPDATA%\chost.exe' -s -pdfgsrdgersfgersfgrsdrg
    • '%APPDATA%\svchost.exe'
    • '%TEMP%\$tmp$001.exe'
    • '%APPDATA%\winupas.exe' *
    • '%WINDIR%\syswow64\cmd.exe' /c copy /y "%TEMP%\system.exe" "%APPDATA%\coronavirus.exe"' (with hidden window)
    • '%WINDIR%\syswow64\mshta.exe' "javascript:o=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{o.DeleteFile('system.exe');close()}catch(e){}},10);"' (with hidden window)
    • '%WINDIR%\syswow64\mshta.exe' "javascript:o=new ActiveXObject('WScript.Shell');x=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{i=x.GetFile('coronavirus.exe').Path;o.RegWrite('HKCU\\Software\\Mic...' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /c copy "%TEMP%\$TMP$001.exe" "%APPDATA%\winupas.exe" & reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Windows Update Assistant" /t REG_SZ /F /D "\"%APPDATA%\winupas.exe\" *" ...' (with hidden window)
    Executes the following
    • '%WINDIR%\syswow64\cmd.exe' /c copy /y "%TEMP%\system.exe" "%APPDATA%\coronavirus.exe"
    • '%WINDIR%\syswow64\mshta.exe' "javascript:o=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{o.DeleteFile('system.exe');close()}catch(e){}},10);"
    • '%WINDIR%\syswow64\mshta.exe' "javascript:o=new ActiveXObject('WScript.Shell');x=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{i=x.GetFile('coronavirus.exe').Path;o.RegWrite('HKCU\\Software\\Mic...
    • '%WINDIR%\syswow64\cmd.exe' /c copy "%TEMP%\$TMP$001.exe" "%APPDATA%\winupas.exe" & reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Windows Update Assistant" /t REG_SZ /F /D "\"%APPDATA%\winupas.exe\" *" ...
    • '%WINDIR%\syswow64\reg.exe' add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Windows Update Assistant" /t REG_SZ /F /D "\"%APPDATA%\winupas.exe\" *"

    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