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Win32.HLLM.Graz.320

Added to the Dr.Web virus database: 2013-03-25

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows] 'AppInit_DLLs' = '<SYSTEM32>\dpnhupns0.dll'
Malicious functions:
Executes the following:
  • <SYSTEM32>\cmd.exe /c 1.bat
  • %WINDIR%\regedit.exe /s %TEMP%\1.reg
  • <SYSTEM32>\rundll32.exe <SYSTEM32>\dpnhupns0.dll G
Modifies file system :
Creates the following files:
  • <Current directory>\1.bat
  • %TEMP%\1.reg
  • <SYSTEM32>\dpnhupns0.dll
Miscellaneous:
Searches for the following windows:
  • ClassName: 'RegEdit_RegEdit' WindowName: ''