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Win32.HLLW.Autoruner.49361

Added to the Dr.Web virus database: 2011-05-11

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Services' = '%APPDATA%\mssns.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\Install\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Services' = 'mssns.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update' = '%TEMP%\service2.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Services' = '%APPDATA%\mssns.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\BACKUP\RESTORE\foxipioros.exe
  • <Drive name for removable media>:\BACKUP\RESTORE\Desktop.ini
Malicious functions:
Creates and executes the following:
  • %APPDATA%\mssns.exe 
Modifies file system :
Creates the following files:
  • %APPDATA%\mssns.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\BACKUP\RESTORE\foxipioros.exe
  • %APPDATA%\mssns.exe
Network activity:
Connects to:
  • 'z3####2.cdmon.org':6464
UDP:
  • DNS ASK z3####2.cdmon.org
  • '<Private IP address>':1037
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''