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Profil

Win32.HLLW.Gedzac.12

Added to the Dr.Web virus database: 2012-07-29

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Classes\MSProgramGroup\Shell\Open\Command] '' = '<SYSTEM32>\grpconv.exe %1'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'GrpConv' = 'grpconv -o'
Malicious functions:
Executes the following:
  • <SYSTEM32>\grpconv.exe -o
  • <SYSTEM32>\runonce.exe -r
  • <SYSTEM32>\rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\vi.inf
Modifies file system :
Creates the following files:
  • C:\SET3.tmp
  • C:\vi.inf
  • C:\GEDZAC.TXT
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''