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Win32.HLLW.Autoruner1.24336

Added to the Dr.Web virus database: 2012-08-03

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS5' = '<SYSTEM32>\csrse3.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS4' = '<SYSTEM32>\krnlnod32.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Msmsgs' = '<SYSTEM32>\Msmsgs.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS1' = '<SYSTEM32>\csrse.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS2' = '<SYSTEM32>\csrse1.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SYS3' = '<SYSTEM32>\csrse2.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\DJ[A]Srilanka.exe
Modifies file system :
Creates the following files:
  • <SYSTEM32>\csrse1.exe
  • <SYSTEM32>\csrse2.exe
  • <SYSTEM32>\csrse3.exe
  • %WINDIR%\autorun.inf
  • <SYSTEM32>\Msmsgs.exe
  • <SYSTEM32>\csrse.exe
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\csrse2.exe
  • <SYSTEM32>\csrse1.exe
  • <SYSTEM32>\Msmsgs.exe
  • <SYSTEM32>\csrse3.exe
  • <Drive name for removable media>:\autorun.inf
  • %WINDIR%\autorun.inf
  • <SYSTEM32>\csrse.exe
  • <Drive name for removable media>:\DJ[A]Srilanka.exe
Deletes the following files:
  • <Drive name for removable media>:\autorun.inf