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Win32.HLLW.Autoruner.53910

Added to the Dr.Web virus database: 2011-07-10

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'MsnsssMsgr' = '%APPDATA%\Microsoft\svchost.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'MsnsssMsgr' = '<Full path to virus>'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'svchost.exe' = '%APPDATA%\Microsoft\svchost.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\svchost.exe
Malicious functions:
Creates and executes the following:
  • %APPDATA%\Microsoft\svchost.exe 
Modifies file system :
Creates the following files:
  • %APPDATA%\Microsoft\svchost.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\svchost.exe
  • %APPDATA%\Microsoft\svchost.exe
Network activity:
Connects to:
  • 'f1####55.no-ip.info':3085
UDP:
  • DNS ASK f1####55.no-ip.info
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
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