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Win32.HLLW.Autoruner.60148

Added to the Dr.Web virus database: 2011-09-27

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Live' = '%TEMP%\winini.exe'
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%\winhost.exe' = '%TEMP%\winhost.exe:*:Enabled:Windows Messan...
  • [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\SR85A3Y6NW.exe' = '%APPDATA%\SR85A3Y6NW.exe:*:Enabled:Wi...
Injects code into
the following user processes:
  • winhost.exe
Modifies file system
Creates the following files
  • %TEMP%\winini.exe
  • %TEMP%\winhost.exe
  • %APPDATA%\wdsdasdasdgrefew
Moves the following files
  • from %TEMP%\winhost.exe to %APPDATA%\sr85a3y6nw.exe
Network activity
Connects to
  • 'fr#####371337.no-ip.biz':1337
UDP
  • DNS ASK fr#####371337.no-ip.biz
  • DNS ASK 1f######371337.no-ip.biz
Miscellaneous
Creates and executes the following
  • '%TEMP%\winini.exe'
  • '%TEMP%\winhost.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%\winhost.exe" /t REG_SZ /d "%TEMP%\winhost.exe:*:E...' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\SR85A3Y6NW.exe" /t REG_SZ /d "%APPDATA%\SR85A3...' (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%\winhost.exe" /t REG_SZ /d "%TEMP%\winhost.exe:*:E...
  • '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\SR85A3Y6NW.exe" /t REG_SZ /d "%APPDATA%\SR85A3...
  • '%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%\winhost.exe" /t REG_SZ /d "%TEMP%\winhost.exe:*:Enabled:...
  • '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\SR85A3Y6NW.exe" /t REG_SZ /d "%APPDATA%\SR85A3Y6NW.ex...

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