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Profil

Win32.HLLW.Autoruner1.54661

Added to the Dr.Web virus database: 2013-08-25

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,<SYSTEM32>\zzzprrog.exe'
Malicious functions:
Executes the following:
  • '<SYSTEM32>\reg.exe' add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Userinit /t reg_sz /d <SYSTEM32>\userinit.exe,<SYSTEM32>\zzzprrog.exe /f
  • '<SYSTEM32>\cmd.exe' /c ""C:\flacs.bat" "
Modifies file system :
Creates the following files:
  • <SYSTEM32>\zzzprrog.exe
  • C:\flacs.bat
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: '(null)'