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Win32.HLLW.Autoruner.46829

Added to the Dr.Web virus database: 2011-03-07

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Services Host Win32' = '%APPDATA%\svсhost.exe'
Malicious functions:
Creates and executes the following:
  • %APPDATA%\svсhost.exe
Executes the following:
  • <SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Services Host Win32" /d "%APPDATA%\svсhost.exe" /f
Modifies file system :
Creates the following files:
  • C:\autorun.inf
  • C:\setup.exe
  • %APPDATA%\svсhost.exe
Sets the 'hidden' attribute to the following files:
  • C:\setup.exe
  • C:\autorun.inf
  • %APPDATA%\svсhost.exe
Network activity:
Connects to:
  • 'mu####ort.irc.by':80
UDP:
  • DNS ASK mu####ort.irc.by
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''
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