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Win32.HLLW.Autoruner.57394

Added to the Dr.Web virus database: 2011-08-31

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'syshost' = '%TEMP%\derpa test.exe'
Creates the following files on removable media
  • <Drive name for removable media>:\autorun.ini
Malicious functions
To bypass firewall, removes or modifies the following registry keys
  • [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
  • [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\vbc.exe' = '%TEMP%\vbc.exe:*:Enabled:Windows Messanger'
  • [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\NEUEBASXTS.exe' = '%APPDATA%\NEUEBASXTS.exe:*:Enabled:Wi...
Injects code into
the following user processes:
  • vbc.exe
Modifies file system
Creates the following files
  • %TEMP%\vbc.exe
  • %TEMP%\derpa test.exe
  • %TEMP%\roxer doxer.exe
  • %APPDATA%\neuebasxts.exe
  • %APPDATA%\demonicserver
Sets the 'hidden' attribute to the following files
  • <Drive name for removable media>:\autorun.ini
Network activity
UDP
  • DNS ASK no#####60.no-ip.info
Miscellaneous
Creates and executes the following
  • '%TEMP%\derpa test.exe'
  • '%TEMP%\roxer doxer.exe'
  • '%TEMP%\vbc.exe'
  • '%TEMP%\derpa test.exe' ' (with hidden window)
  • '%TEMP%\roxer doxer.exe' ' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%TEMP%\vbc.exe" /t REG_SZ /d "%TEMP%\vbc.exe:*:Enabled:W...' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\NEUEBASXTS.exe" /t REG_SZ /d "%APPDATA%\NEUEBA...' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
  • '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%TEMP%\vbc.exe" /t REG_SZ /d "%TEMP%\vbc.exe:*:Enabled:W...
  • '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\NEUEBASXTS.exe" /t REG_SZ /d "%APPDATA%\NEUEBA...
  • '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
  • '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%TEMP%\vbc.exe" /t REG_SZ /d "%TEMP%\vbc.exe:*:Enabled:Windows ...
  • '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\NEUEBASXTS.exe" /t REG_SZ /d "%APPDATA%\NEUEBASXTS.ex...

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