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Trojan.MulDrop11.25796

Added to the Dr.Web virus database: 2019-10-27

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following files on removable media
  • <Drive name for removable media>:\correct.avi.hcy!
  • <Drive name for removable media>:\sdszfo.docx.hcy!
  • <Drive name for removable media>:\issi2013_template_for_posters.docx.hcy!
  • <Drive name for removable media>:\february_catalogue__2015.doc.hcy!
  • <Drive name for removable media>:\cveuropeo.doc.hcy!
  • <Drive name for removable media>:\508softwareandos.doc.hcy!
  • <Drive name for removable media>:\weeklysheet1215.doc.hcy!
  • <Drive name for removable media>:\hanni_umami_chapter.doc.hcy!
  • <Drive name for removable media>:\file_p_00000000_1371597592.docx.hcy!
  • <Drive name for removable media>:\testee.cer.hcy!
  • <Drive name for removable media>:\contoso_1.cer.hcy!
  • <Drive name for removable media>:\sdkfailsafeemulator.cer.hcy!
  • <Drive name for removable media>:\contosoroot_1.cer.hcy!
  • <Drive name for removable media>:\delete.avi.hcy!
  • <Drive name for removable media>:\join.avi.hcy!
  • <Drive name for removable media>:\archer.avi.hcy!
  • <Drive name for removable media>:\hildacryptreadme.html
  • <Drive name for removable media>:\contoso.cer.hcy!
  • <Drive name for removable media>:\adhd_and_obesity.docx.hcy!
Malicious functions
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Executes the following
  • '%WINDIR%\syswow64\net.exe' stop SQLAgent$SYSTEM_BGC /y
  • '%WINDIR%\syswow64\net.exe' stop bedbg /y
  • '%WINDIR%\syswow64\net.exe' stop MSSQLSERVER /y
  • '%WINDIR%\syswow64\net.exe' stop KAVFS /y
  • '%WINDIR%\syswow64\net.exe' stop Smcinst /y
  • '%WINDIR%\syswow64\net.exe' stop MSSQLServerADHelper100 /y
  • '%WINDIR%\syswow64\net.exe' stop TmCCSF /y
  • '%WINDIR%\syswow64\net.exe' stop wbengine /y
  • '%WINDIR%\syswow64\net.exe' stop SQLWriter /y
  • '%WINDIR%\syswow64\net.exe' stop VeeamTransportSvc /y
  • '%WINDIR%\syswow64\net.exe' stop ΓÇ£Sophos Health ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net.exe' stop MSSQLFDLauncher$TPS /y
  • '%WINDIR%\syswow64\net.exe' stop swi_update /y
  • '%WINDIR%\syswow64\net.exe' stop AcrSch2Svc /y
  • '%WINDIR%\syswow64\net.exe' stop MSSQL$SYSTEM_BGC /y
  • '%WINDIR%\syswow64\net.exe' stop VeeamBrokerSvc /y
  • '%WINDIR%\syswow64\net.exe' stop MSSQLFDLauncher$PROFXENGAGEMENT /y
  • '%WINDIR%\syswow64\net.exe' stop VeeamDeploymentService /y
  • '%WINDIR%\syswow64\net.exe' stop SQLAgent$TPS /y
  • '%WINDIR%\syswow64\net.exe' stop DCAgent /y
  • '%WINDIR%\syswow64\net.exe' stop SmcService /y
  • '%WINDIR%\syswow64\net.exe' stop ReportServer$TPSAMA /y
  • '%WINDIR%\syswow64\net.exe' stop EPUpdateService /y
  • '%WINDIR%\syswow64\net.exe' stop SAVAdminService /y
  • '%WINDIR%\syswow64\net.exe' stop FA_Scheduler /y
  • '%WINDIR%\syswow64\net.exe' stop macmnsvc /y
  • '%WINDIR%\syswow64\net.exe' stop SQLAgent$ECWDB2 /y
  • '%WINDIR%\syswow64\net.exe' stop ΓÇ£Zoolz 2 ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net.exe' stop McTaskManager /y
  • '%WINDIR%\syswow64\net.exe' stop ΓÇ£Sophos AutoUpdate ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net.exe' stop ΓÇ£Sophos System Protection ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net.exe' stop EraserSvc11710 /y
  • '%WINDIR%\syswow64\net.exe' stop PDVFSService /y
  • '%WINDIR%\syswow64\net.exe' stop SQLAgent$PROFXENGAGEMENT /y
  • '%WINDIR%\syswow64\net.exe' stop ΓÇ£Sophos Device Control ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net.exe' stop SAVService /y
  • '%WINDIR%\syswow64\net.exe' stop EPSecurityService /y
  • '%WINDIR%\syswow64\net.exe' stop SQLAgent$SOPHOS /y
  • '%WINDIR%\syswow64\net.exe' stop ΓÇ£Symantec System RecoveryΓÇ¥ /y
  • '%WINDIR%\syswow64\net.exe' stop Antivirus /y
  • '%WINDIR%\syswow64\net.exe' stop SstpSvc /y
  • '%WINDIR%\syswow64\net.exe' stop MSOLAP$SQL_2008 /y
  • '%WINDIR%\syswow64\net.exe' stop TrueKeyServiceHelper /y
  • '%WINDIR%\syswow64\net.exe' stop sacsvr /y
  • '%WINDIR%\syswow64\net.exe' stop VeeamNFSSvc /y
  • '%WINDIR%\syswow64\net.exe' stop MSSQLFDLauncher$TPSAMA /y
  • '%WINDIR%\syswow64\net.exe' stop ΓÇ£Sophos Message RouterΓÇ¥ /y
  • '%WINDIR%\syswow64\net.exe' stop MSSQLFDLauncher$SBSMONITORING /y
Modifies file system
Creates the following files
  • %APPDATA%\{43104554-0e28-4d4e-b16a-884aa9f10296}\jkfgkgj3hjgfhjka.bat
Deletes the following files
  • <Drive name for removable media>:\parnas_01.jpeg.hcy!
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c "%APPDATA%\{43104554-0e28-4d4e-b16a-884aa9f10296}\JKfgkgj3hjgfhjka.bat" & exit
  • '%WINDIR%\syswow64\net1.exe' stop sacsvr /y
  • '%WINDIR%\syswow64\net1.exe' stop VeeamNFSSvc /y
  • '%WINDIR%\syswow64\net1.exe' stop FA_Scheduler /y
  • '%WINDIR%\syswow64\net1.exe' stop SAVAdminService /y
  • '%WINDIR%\syswow64\net1.exe' stop EPUpdateService /y
  • '%WINDIR%\syswow64\net1.exe' stop VeeamTransportSvc /y
  • '%WINDIR%\syswow64\net1.exe' stop ΓÇ£Sophos Health ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net1.exe' stop bedbg /y
  • '%WINDIR%\syswow64\net1.exe' stop MSSQLSERVER /y
  • '%WINDIR%\syswow64\net1.exe' stop KAVFS /y
  • '%WINDIR%\syswow64\net1.exe' stop Smcinst /y
  • '%WINDIR%\syswow64\net1.exe' stop MSSQLServerADHelper100 /y
  • '%WINDIR%\syswow64\net1.exe' stop ΓÇ£Sophos Device Control ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net1.exe' stop TmCCSF /y
  • '%WINDIR%\syswow64\net1.exe' stop SQLWriter /y
  • '%WINDIR%\syswow64\net1.exe' stop MSSQLFDLauncher$TPS /y
  • '%WINDIR%\syswow64\net1.exe' stop SmcService /y
  • '%WINDIR%\syswow64\net1.exe' stop ReportServer$TPSAMA /y
  • '%WINDIR%\syswow64\net1.exe' stop swi_update /y
  • '%WINDIR%\syswow64\net1.exe' stop AcrSch2Svc /y
  • '%WINDIR%\syswow64\net1.exe' stop MSSQL$SYSTEM_BGC /y
  • '%WINDIR%\syswow64\net1.exe' stop VeeamBrokerSvc /y
  • '%WINDIR%\syswow64\net1.exe' stop MSSQLFDLauncher$PROFXENGAGEMENT /y
  • '%WINDIR%\syswow64\net1.exe' stop VeeamDeploymentService /y
  • '%WINDIR%\syswow64\net1.exe' stop SQLAgent$TPS /y
  • '%WINDIR%\syswow64\net1.exe' stop DCAgent /y
  • '%WINDIR%\syswow64\net1.exe' stop MSOLAP$SQL_2008 /y
  • '%WINDIR%\syswow64\net1.exe' stop TrueKeyServiceHelper /y
  • '%WINDIR%\syswow64\net1.exe' stop SstpSvc /y
  • '%WINDIR%\syswow64\net1.exe' stop Antivirus /y
  • '%WINDIR%\syswow64\net1.exe' stop ΓÇ£Symantec System RecoveryΓÇ¥ /y
  • '<SYSTEM32>\vssvc.exe'
  • '%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=f: /on=f: /maxsize=unbounded
  • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=g: /on=g: /maxsize=401MB
  • '%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\net1.exe' stop ΓÇ£Sophos Message RouterΓÇ¥ /y
  • '%WINDIR%\syswow64\net1.exe' stop wbengine /y
  • '%WINDIR%\syswow64\net1.exe' stop SQLAgent$SYSTEM_BGC /y
  • '%WINDIR%\syswow64\net1.exe' stop SQLAgent$ECWDB2 /y
  • '%WINDIR%\syswow64\net1.exe' stop ΓÇ£Zoolz 2 ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net1.exe' stop McTaskManager /y
  • '%WINDIR%\syswow64\net1.exe' stop ΓÇ£Sophos AutoUpdate ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net1.exe' stop ΓÇ£Sophos System Protection ServiceΓÇ¥ /y
  • '%WINDIR%\syswow64\net1.exe' stop EraserSvc11710 /y
  • '%WINDIR%\syswow64\net1.exe' stop PDVFSService /y
  • '%WINDIR%\syswow64\net1.exe' stop SQLAgent$PROFXENGAGEMENT /y
  • '%WINDIR%\syswow64\net1.exe' stop SAVService /y
  • '%WINDIR%\syswow64\net1.exe' stop MSSQLFDLauncher$TPSAMA /y
  • '%WINDIR%\syswow64\net1.exe' stop EPSecurityService /y
  • '%WINDIR%\syswow64\net1.exe' stop SQLAgent$SOPHOS /y
  • '%WINDIR%\syswow64\vssadmin.exe' resize shadowstorage /for=c: /on=c: /maxsize=401MB
  • '%WINDIR%\syswow64\net1.exe' stop macmnsvc /y
  • '%WINDIR%\syswow64\net1.exe' stop MSSQLFDLauncher$SBSMONITORING /y

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.

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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.

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