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Win32.HLLW.Autoruner.62424
Added to the Dr.Web virus database:
2011-10-06
Virus description added:
2020-06-21
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WinDefend' = '%TEMP%\<File name>.exe'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'winworld' = '%TEMP%\rooter.exe'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'winworld' = '%TEMP%\rooter.exe'
[<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'winworld' = '%TEMP%\rooter.exe'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{982DE2AF-B8AB-C6AB-30BF-BABAA8DECEDB}] 'StubPath' = '%TEMP%\rooter.exe'
[<HKCU>\SOFTWARE\Microsoft\Active Setup\Installed Components\{982DE2AF-B8AB-C6AB-30BF-BABAA8DECEDB}] 'StubPath' = '%TEMP%\rooter.exe'
Creates the following files on removable media
<Drive name for removable media>:\vbc.exe
<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%\rooter.exe' = '%TEMP%\rooter.exe:*:Enabled:Windows Messange...
[<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\vbc.exe' = '%TEMP%\vbc.exe:*:Enabled:Windows Messanger'
Injects code into
the following user processes:
Modifies file system
Creates the following files
%TEMP%\vbc.exe
%TEMP%\<File name>.exe
%TEMP%\rooter.exe
%TEMP%\serpentus
Sets the 'hidden' attribute to the following files
<Drive name for removable media>:\vbc.exe
<Drive name for removable media>:\autorun.ini
Network activity
UDP
DNS ASK ce####s2.no-ip.org
Miscellaneous
Creates and executes the following
'%TEMP%\vbc.exe'
'%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 "%TEMP%\rooter.exe" /t REG_SZ /d "%TEMP%\rooter.exe:*:Ena...' (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 "%TEMP%\rooter.exe" /t REG_SZ /d "%TEMP%\rooter.exe:*:Ena...
'%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%\rooter.exe" /t REG_SZ /d "%TEMP%\rooter.exe:*:Enabled:Wi...
'%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 ...
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