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Trojan.Siggen18.55022

Added to the Dr.Web virus database: 2022-10-05

Virus description added:

Technical Information

To ensure autorun and distribution
Sets the following service settings
  • [<HKLM>\System\CurrentControlSet\Services\dcdbas] 'ImagePath' = 'system32\DRIVERS\dcdbas64.sys'
Creates the following services
  • 'dcdbas' system32\DRIVERS\dcdbas64.sys
Modifies file system
Creates the following files
  • <PATH_SAMPLE>.txt
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\hapiinstall.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcwipm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcmdev64.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcmdev32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dciwds32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchtvm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchtst64.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\hapint.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchtst32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchipm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchesm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchcfl64.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchcfl32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchcfg64.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchcfg32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchbas64.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchipm64.dll
  • <SYSTEM32>\dchapi64.dll
  • %WINDIR%\syswow64\dchcfl32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\omsacntl.exe
  • <SYSTEM32>\dchcfl64.dll
  • %WINDIR%\dchcfg32.exe
  • %WINDIR%\dchcfg64.exe
  • %WINDIR%\dcmdev64.exe
  • %WINDIR%\hapint.exe
  • %WINDIR%\hapint64.exe
  • %WINDIR%\syswow64\dchapi32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchbas32.dll
  • %WINDIR%\syswow64\dchbas32.dll
  • <SYSTEM32>\dchbas64.dll
  • %WINDIR%\temp\udde5eb.tmp
  • <SYSTEM32>\catroot\{f750e6c3-38ee-11d1-85e5-00c04fc295ee}\oem2.cat
  • %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\set9c8f.tmp
  • %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\set9ba4.tmp
  • %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\set9ab9.tmp
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\mxml1.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\hapint64.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\hapiuninstall.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchapi64.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchipm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchcfg32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchbas32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchapi32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcesmwdm.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcesm.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdtvm32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdipm32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchcfl32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdesm32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdbas32.inf
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdbas32.cat
  • %ProgramFiles%\dell\drivers\<File name>\x86\cctk.exe
  • %ProgramFiles%\dell\drivers\<File name>\package.xml
  • %ProgramFiles%\dell\drivers\<File name>\mup.xml
  • %ProgramFiles%\dell\drivers\<File name>\config.ini
  • %ProgramFiles%\dell\drivers\<File name>\applyconfig.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdbas32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\omsacntl.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdipm64.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchtst32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas64.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas64.inf
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas64.cat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas32.inf
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas32.cat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\cctk.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchapi32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\mxml1.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\hapiuninstall.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\hapint.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\hapiinstall.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcwipm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcmdev32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dciwds32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchtvm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchesm32.dll
  • nul
Sets the 'hidden' attribute to the following files
  • <SYSTEM32>\catroot\{f750e6c3-38ee-11d1-85e5-00c04fc295ee}\oem2.cat
Deletes the following files
  • %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\dcdbas64.cat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchapi64.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchapi32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdipm64.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas64.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas64.inf
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas64.cat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas32.inf
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcdbas32.cat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\cctk.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\mxml1.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\omsacntl.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\hapiuninstall.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\hapint.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\hapiinstall.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchbas32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchbas64.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchcfg32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchcfg64.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\hapiuninstall.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\hapint64.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\hapint.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\hapiinstall.bat
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcwipm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcmdev64.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dcmdev32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchtvm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dciwds32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchtst64.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchtst32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchipm64.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchipm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchesm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchcfl64.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\dchcfl32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\hapi\omsacntl.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcwipm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcmdev32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dciwds32.exe
  • %WINDIR%\hapint.exe
  • %WINDIR%\hapint64.exe
  • %WINDIR%\dcmdev64.exe
  • %WINDIR%\syswow64\dchcfl32.dll
  • %WINDIR%\dchcfg32.exe
  • %WINDIR%\syswow64\dchapi32.dll
  • <SYSTEM32>\dchcfl64.dll
  • %WINDIR%\dchcfg64.exe
  • <SYSTEM32>\dchapi64.dll
  • %WINDIR%\syswow64\dchbas32.dll
  • <SYSTEM32>\dchbas64.dll
  • <DRIVERS>\dcdbas64.sys
  • %WINDIR%\temp\udde5eb.tmp
  • %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\dcdbas64.sys
  • %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\dcdbas64.inf
  • %ProgramFiles%\dell\drivers\<File name>\applyconfig.bat
  • %ProgramFiles%\dell\drivers\<File name>\config.ini
  • %ProgramFiles%\dell\drivers\<File name>\mup.xml
  • %ProgramFiles%\dell\drivers\<File name>\package.xml
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchtst32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchipm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchesm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchcfl32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchcfg32.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchbas32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchapi32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcesm.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcesmwdm.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdtvm32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdipm32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdesm32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdbas32.sys
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdbas32.inf
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dcdbas32.cat
  • %ProgramFiles%\dell\drivers\<File name>\x86\cctk.exe
  • %ProgramFiles%\dell\drivers\<File name>\x86\hapi\dchtvm32.dll
  • %ProgramFiles%\dell\drivers\<File name>\x86_64\mxml1.dll
Moves the following files
  • from %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\set9ab9.tmp to %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\dcdbas64.cat
  • from %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\set9ba4.tmp to %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\dcdbas64.inf
  • from %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\set9c8f.tmp to %TEMP%\{23244537-af73-14ed-c200-a62d17017f78}\dcdbas64.sys
Modifies the following files
Miscellaneous
Creates and executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c ""%ALLUSERSPROFILE%\dell\drivers\<File name>\applyconfig.bat" -l="%ALLUSERSPROFILE%\dell\drivers\<File name>\SCE7148.tmp""' (with hidden window)
  • '%ALLUSERSPROFILE%\dell\drivers\<File name>\x86_64\hapi\dcmdev64.exe' remove root\dcdbas' (with hidden window)
  • '%ALLUSERSPROFILE%\dell\drivers\<File name>\x86_64\hapi\dcmdev64.exe' install .\dcdbas64.inf root\dcdbas' (with hidden window)
  • '%ALLUSERSPROFILE%\dell\drivers\<File name>\x86_64\hapi\dchcfg64.exe' command=getsupportedsystypes' (with hidden window)
  • '%ALLUSERSPROFILE%\dell\drivers\<File name>\x86_64\hapi\hapint.exe' -e -q' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c ""%ALLUSERSPROFILE%\dell\drivers\<File name>\applyconfig.bat" -l="%ALLUSERSPROFILE%\dell\drivers\<File name>\SCE7148.tmp""

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