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03-6550-8770

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Trojan.Siggen10.27070

Added to the Dr.Web virus database: 2020-09-24

Virus description added:

Technical Information

To ensure autorun and distribution
Sets the following service settings
  • [<HKLM>\System\CurrentControlSet\Services\AstService] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\AstService] 'ImagePath' = '"%ProgramFiles(x86)%\Ассистент\ast_service.exe"'
Creates the following services
  • 'AstService' "%ProgramFiles(x86)%\Ассистент\ast_service.exe"
  • 'AstService' %ProgramFiles(x86)%\Ассистент\ast_service.exe
Malicious functions
Executes the following
  • '%WINDIR%\syswow64\taskkill.exe' /F /IM assistant.exe /T
  • '%WINDIR%\syswow64\net.exe' stop astservice
Modifies file system
Creates the following files
  • %TEMP%\rarsfx0\idserver.info
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xpsdrvsmpl.cat
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdwscrgb.icc
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdwmark.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdwmark.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmplui.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmplcmn.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmpl.ini
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmpl.inf
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmpl.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmpl-pipelineconfig.xml
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsdbg.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdscale.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdpgscl.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdnup.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdnup.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdnames.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdfltcmn.lib
  • %ProgramFiles(x86)%\ассистент\hatls.dll
  • %ProgramFiles(x86)%\ассистент\libcurl.dll
  • %TEMP%\msi176b5.log
  • %ProgramFiles(x86)%\ассистент\libeay32.dll
  • %WINDIR%\syswow64\config\systemprofile\appdata\roaming\safib\ast\log\ast_service.log
  • %ProgramFiles(x86)%\ассистент\idserver.info
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\ассистент\удалить ассистент.lnk
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\ассистент\ассистент.lnk
  • C:\users\public\desktop\ассистент.lnk
  • %WINDIR%\installer\{919ff519-3068-4a46-87b9-52ebc34d9d69}\systemfoldermsiexec.exe
  • %WINDIR%\installer\{919ff519-3068-4a46-87b9-52ebc34d9d69}\ico_all.exe
  • %WINDIR%\fonts\anonymous pro.ttf
  • %ProgramFiles(x86)%\ассистент\vcomp140.dll
  • %ProgramFiles(x86)%\ассистент\aw_sas32.dll
  • %ProgramFiles(x86)%\ассистент\vcruntime140d.dll
  • %ProgramFiles(x86)%\ассистент\vcruntime140.dll
  • %ProgramFiles(x86)%\ассистент\ssleay32.dll
  • %ProgramFiles(x86)%\ассистент\sqlite3.dll
  • %ProgramFiles(x86)%\ассистент\rus.lang
  • %ProgramFiles(x86)%\ассистент\msvcr120.dll
  • %ProgramFiles(x86)%\ассистент\libjpeg-turbo-win.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdcont.lib
  • %ProgramFiles(x86)%\ассистент\libcryptomd.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdcolman.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdcont.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdcolman.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdcmykprinter.icc
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdbook.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdbook.dll
  • %ProgramFiles(x86)%\ассистент\ast_service.exe
  • %ProgramFiles(x86)%\ассистент\astrct.dll
  • %ProgramFiles(x86)%\ассистент\astprint.dll
  • %ProgramFiles(x86)%\ассистент\astcrp.dll
  • %ProgramFiles(x86)%\ассистент\astclient.dll
  • %ProgramFiles(x86)%\ассистент\assistant.exe
  • %TEMP%\aibb_{919ff519-3068-4a46-87b9-52ebc34d9d69}_3036.tmp
  • %TEMP%\{56b47654-f78f-4aec-aa7d-9cab27e99b71}.bat
  • %TEMP%\rarsfx0\assistant_install_k_3.msi
  • %TEMP%\rarsfx0\popup.vbs
  • %TEMP%\rarsfx0\install.reg
  • %TEMP%\rarsfx0\install.exe
  • %TEMP%\rarsfx0\install.cmd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdcolman.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdfltcmn.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdcmykprinter.icc
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdnames.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdbook.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdbook.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xpsdrvsmpl.cat
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdwscrgb.icc
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdwmark.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdwmark.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmplui.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmplcmn.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmpl.ini
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmpl.inf
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmpl.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmpl-pipelineconfig.xml
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsdbg.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdscale.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdpgscl.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdnup.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdnup.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdcolman.dll
  • %TEMP%\{0654e279-59ff-4cbb-827e-2fc835a461eb}.bat
Deletes the following files
  • %ProgramFiles(x86)%\ассистент\idserver.info
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmpl-pipelineconfig.xml
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmpl.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmpl.inf
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmpl.ini
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmplcmn.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsmplui.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdcont.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdwmark.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdwscrgb.icc
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xpsdrvsmpl.cat
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdbook.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdbook.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdcmykprinter.icc
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdcolman.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdwmark.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdcolman.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdsdbg.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdcolman.dll
  • %ProgramFiles(x86)%\ассистент\astcrp.dll
  • %ProgramFiles(x86)%\ассистент\astprint.dll
  • %ProgramFiles(x86)%\ассистент\astrct.dll
  • %ProgramFiles(x86)%\ассистент\ast_service.exe
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdbook.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdbook.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdpgscl.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdscale.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdcolman.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdcont.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdfltcmn.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdnames.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdnup.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdnup.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x64\xdcmykprinter.icc
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdfltcmn.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdnames.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdnup.dll
  • %ProgramFiles(x86)%\ассистент\rus.lang
  • %ProgramFiles(x86)%\ассистент\sqlite3.dll
  • %ProgramFiles(x86)%\ассистент\ssleay32.dll
  • %ProgramFiles(x86)%\ассистент\vcruntime140.dll
  • %ProgramFiles(x86)%\ассистент\vcruntime140d.dll
  • %ProgramFiles(x86)%\ассистент\libjpeg-turbo-win.dll
  • %ProgramFiles(x86)%\ассистент\aw_sas32.dll
  • %WINDIR%\fonts\anonymous pro.ttf
  • %WINDIR%\installer\{919ff519-3068-4a46-87b9-52ebc34d9d69}\ico_all.exe
  • %WINDIR%\installer\{919ff519-3068-4a46-87b9-52ebc34d9d69}\systemfoldermsiexec.exe
  • C:\users\public\desktop\ассистент.lnk
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\ассистент\ассистент.lnk
  • %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\ассистент\удалить ассистент.lnk
  • %ProgramFiles(x86)%\ассистент\vcomp140.dll
  • %ProgramFiles(x86)%\ассистент\libeay32.dll
  • %ProgramFiles(x86)%\ассистент\msvcr120.dll
  • %ProgramFiles(x86)%\ассистент\libcurl.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdnup.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmpl.ini
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdpgscl.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdscale.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsdbg.lib
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmpl-pipelineconfig.xml
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmpl.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmpl.inf
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmplcmn.lib
  • %ProgramFiles(x86)%\ассистент\libcryptomd.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdsmplui.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdwmark.dll
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdwmark.gpd
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xdwscrgb.icc
  • %ProgramFiles(x86)%\ассистент\drivers\x86\xpsdrvsmpl.cat
  • %ProgramFiles(x86)%\ассистент\hatls.dll
  • %ProgramFiles(x86)%\ассистент\astclient.dll
  • %ProgramFiles(x86)%\ассистент\assistant.exe
Network activity
TCP
HTTP GET requests
  • http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
UDP
  • DNS ASK microsoft.com
Miscellaneous
Searches for the following windows
  • ClassName: 'EDIT' WindowName: ''
  • ClassName: '' WindowName: ''
  • ClassName: 'RegEdit_RegEdit' WindowName: ''
Creates and executes the following
  • '%TEMP%\rarsfx0\install.exe' install.cmd
  • '%ProgramFiles(x86)%\ассистент\ast_service.exe'
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c install.cmd
  • '%WINDIR%\syswow64\net1.exe' stop astservice
  • '%WINDIR%\syswow64\msiexec.exe' /X{919FF519-3068-4A46-87B9-52EBC34D9D69} /quiet
  • '%WINDIR%\syswow64\msiexec.exe' /i assistant_install_k_3.msi /quiet
  • '%WINDIR%\syswow64\cmd.exe' "%TEMP%\{56B47654-F78F-4AEC-AA7D-9CAB27E99B71}.bat"
  • '%WINDIR%\syswow64\chcp.com' 65001
  • '%WINDIR%\syswow64\cmd.exe' "%TEMP%\{0654E279-59FF-4CBB-827E-2FC835A461EB}.bat"
  • '%WINDIR%\syswow64\regedit.exe' /s install.reg
  • '%WINDIR%\syswow64\net.exe' start astservice
  • '%WINDIR%\syswow64\net1.exe' start astservice

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