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Win32.HLLW.Autoruner1.11419

Added to the Dr.Web virus database: 2012-02-01

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update' = '%HOMEPATH%\Templates\Photoshop_7.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\Sys.exe
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
  • User Account Control (UAC)
Executes the following:
  • <SYSTEM32>\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
Modifies file system :
Creates the following files:
  • C:\autorun.inf
  • C:\Sys.exe
  • %HOMEPATH%\Templates\Photoshop_7.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\Sys.exe
  • <Drive name for removable media>:\autorun.inf
  • C:\Sys.exe
  • C:\autorun.inf
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
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