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Win32.HLLW.Autoruner2.9667

Added to the Dr.Web virus database: 2014-02-23

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '2a5ba52baedca3de4e4d' = '<Full path to virus>'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\apphost.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Modifies file system :
Creates the following files:
  • %HOMEPATH%\My Documents\Downloads\Online Services.exe
  • %HOMEPATH%\My Documents\Downloads\Outlook Express.exe
  • %HOMEPATH%\My Documents\Downloads\NetMeeting.exe
  • %HOMEPATH%\My Documents\Downloads\MSN.exe
  • %HOMEPATH%\My Documents\Downloads\MSN Gaming Zone.exe
  • %HOMEPATH%\My Documents\Downloads\Reference Assemblies.exe
  • %HOMEPATH%\My Documents\Downloads\WindowsUpdate.exe
  • %HOMEPATH%\My Documents\Downloads\xerox.exe
  • %HOMEPATH%\My Documents\Downloads\Windows NT.exe
  • %HOMEPATH%\My Documents\Downloads\Uninstall Information.exe
  • %HOMEPATH%\My Documents\Downloads\Windows Media Player.exe
  • %HOMEPATH%\My Documents\Downloads\ComPlus Applications.exe
  • %HOMEPATH%\My Documents\Downloads\FireFox.exe
  • %HOMEPATH%\My Documents\Downloads\Common Files.exe
  • C:\apphost.exe
  • C:\autorun.inf
  • %HOMEPATH%\My Documents\Downloads\Internet Explorer.exe
  • %HOMEPATH%\My Documents\Downloads\Movie Maker.exe
  • %HOMEPATH%\My Documents\Downloads\MSBuild.exe
  • %HOMEPATH%\My Documents\Downloads\Microsoft.NET.exe
  • %HOMEPATH%\My Documents\Downloads\Messenger.exe
  • %HOMEPATH%\My Documents\Downloads\microsoft frontpage.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\apphost.exe
  • C:\autorun.inf
  • C:\apphost.exe
Network activity:
Connects to:
  • '18####o.zapto.org':49152
UDP:
  • DNS ASK 18####o.zapto.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'

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