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Profil

Win32.HLLW.Autoruner1.10684

Added to the Dr.Web virus database: 2012-01-06

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Registry Services' = 'C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Registry Services' = 'C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Network Services' = 'C:\WINNIT\0x03847\SYS\cService.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Network Services' = 'C:\WINNIT\0x03847\SYS\cService.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\NtTerminate.exe
  • <Drive name for removable media>:\I.LOVE.YOU.txt.vbs
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
blocks the following features:
  • System Restore (SR)
Creates and executes the following:
  • C:\WINNIT\0x03847\SYS\cService.exe 
Executes the following:
  • <SYSTEM32>\wscript.exe "C:\WINNIT\0x03847\SYS\NetworkService.vbs"
  • <SYSTEM32>\wscript.exe "C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs"
Modifies file system :
Creates the following files:
  • %PROGRAM_FILES%\NtTerminate.exe
  • C:\RECYCLER\I.LOVE.YOU.txt.vbs
  • <Auxiliary element>
  • %PROGRAM_FILES%\I.LOVE.YOU.txt.vbs
  • C:\RECYCLER\NtTerminate.exe
  • C:\WINNIT\I.LOVE.YOU.txt.vbs
  • C:\WINNIT\NtTerminate.exe
  • %WINDIR%\I.LOVE.YOU.txt.vbs
  • %WINDIR%\NtTerminate.exe
  • C:\Far2\NtTerminate.exe
  • C:\WINNIT\0x03847\SYS\hhhService.txt
  • C:\WINNIT\0x03847\SYS\NetworkService.vbs
  • C:\WINNIT\0x03847\SYS\cService.exe
  • C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs
  • C:\I.LOVE.YOU.txt.vbs
  • C:\Documents and Settings\NtTerminate.exe
  • C:\Far2\I.LOVE.YOU.txt.vbs
  • C:\NtTerminate.exe
  • C:\Documents and Settings\I.LOVE.YOU.txt.vbs
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • C:\RECYCLER\NtTerminate.exe
  • %PROGRAM_FILES%\NtTerminate.exe
  • C:\WINNIT\NtTerminate.exe
  • <Drive name for removable media>:\NtTerminate.exe
  • %WINDIR%\NtTerminate.exe
  • <Auxiliary element>
  • C:\WINNIT\0x03847\SYS\NetworkService.vbs
  • C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs
  • C:\WINNIT\0x03847\SYS\cService.exe
  • C:\Far2\NtTerminate.exe
  • C:\Documents and Settings\NtTerminate.exe
  • C:\NtTerminate.exe
Deletes the following files:
  • %WINDIR%\NtTerminate.exe
  • C:\RECYCLER\NtTerminate.exe
  • C:\WINNIT\NtTerminate.exe
  • <Drive name for removable media>:\NtTerminate.exe
  • <Drive name for removable media>:\autorun.inf
  • C:\Documents and Settings\NtTerminate.exe
  • C:\NtTerminate.exe
  • C:\Far2\NtTerminate.exe
  • %PROGRAM_FILES%\NtTerminate.exe
  • <Auxiliary element>
Network activity:
Connects to:
  • 'lo#.2dt.net':3921
UDP:
  • DNS ASK lo#.2dt.net
  • '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''