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Win32.HLLW.Autoruner1.40769

Added to the Dr.Web virus database: 2013-06-07

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Task Host' = '%APPDATA%\taskhost.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Task Host' = '%APPDATA%\taskhost.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\viewDrive.exe
Malicious functions:
Creates and executes the following:
  • '%APPDATA%\taskhost.exe'
  • '%TEMP%\myproc.exe'
Modifies file system :
Creates the following files:
  • C:\viewDrive.exe
  • C:\autorun.inf
  • %TEMP%\myproc.exe
  • %APPDATA%\taskhost.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\viewDrive.exe
  • <Drive name for removable media>:\autorun.inf
  • C:\autorun.inf
  • %APPDATA%\taskhost.exe
  • C:\viewDrive.exe
Network activity:
Connects to:
  • 'fo####ah.alaal.biz':31091
  • 'fo####ah.alaal.biz':31093
  • 'fo####ah.alaal.biz':31092
UDP:
  • DNS ASK fo####ah.alaal.biz
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'EDIT' WindowName: ''

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