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Win32.HLLW.Autoruner1.34204

Added to the Dr.Web virus database: 2013-03-20

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'system' = '%WINDIR%\Temp\svсhоst.еxе'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\rесyсlеr\desktop.ini
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
  • file extensions
Executes the following:
  • <SYSTEM32>\attrib.exe +s +h +r +a "Q:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "Q:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h Q:\autorun.inf
  • <SYSTEM32>\attrib.exe +r +a +s +h "P:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h P:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "Q:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +r +a +s +h R:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "S:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "S:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +s +h +r +a "R:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "R:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "R:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +s +h +r +a "P:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +s +h +r +a "N:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "N:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "N:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +s +h +r +a "M:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "M:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h M:\autorun.inf
  • <SYSTEM32>\attrib.exe +r +a +s +h "O:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h O:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "P:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +r +a +s +h N:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "O:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "O:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "S:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h W:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "X:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "X:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +s +h +r +a "W:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "W:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "W:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +s +h +r +a "Y:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "Y:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h Y:\autorun.inf
  • <SYSTEM32>\attrib.exe +r +a +s +h "X:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h X:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "Y:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +r +a +s +h V:\autorun.inf
  • <SYSTEM32>\attrib.exe +r +a +s +h "T:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h T:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "U:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +r +a +s +h S:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "T:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "T:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +s +h +r +a "V:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "V:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "V:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +s +h +r +a "U:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "U:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h U:\autorun.inf
  • <SYSTEM32>\attrib.exe +r +a +s +h "<Drive name for removable media>:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h <Drive name for removable media>:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "E:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "<Drive name for removable media>:\rесyсlеr"
  • <SYSTEM32>\attrib.exe -r -a -s -h "%WINDIR%\Temp\svсhоst.еxе"
  • <SYSTEM32>\attrib.exe +r +a +s +h "%WINDIR%\Temp\svсhоst.еxе"
  • <SYSTEM32>\attrib.exe +s +h +r +a "F:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "F:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "F:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +s +h +r +a "E:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "E:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h E:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "<Drive name for removable media>:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\reg.exe add "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL" /v CheckedValue /t REG_DWORD /d 0 /f
  • <SYSTEM32>\reg.exe add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v Hidden /t REG_DWORD /d 0 /f
  • <SYSTEM32>\reg.exe add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v HideFileExt /t REG_DWORD /d 1 /f
  • <SYSTEM32>\cmd.exe /c ""%TEMP%\1.tmp\doceraser.bat" "
  • <SYSTEM32>\taskkill.exe /f /im sоundman.exe /t
  • <SYSTEM32>\tskill.exe sоundman.exe
  • <SYSTEM32>\taskkill.exe /f /im regedit.exe /t
  • <SYSTEM32>\tskill.exe taskmgr
  • <SYSTEM32>\tskill.exe regedit
  • <SYSTEM32>\reg.exe add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v ShowSuperHidden /t REG_DWORD /d 0 /f
  • <SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v system /t REG_SZ /d "%WINDIR%\Temp\svсhоst.еxе" /f
  • <SYSTEM32>\taskkill.exe /f /im taskmgr.exe /t
  • <SYSTEM32>\attrib.exe +r +a +s +h F:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "K:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "K:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "K:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +s +h +r +a "J:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "J:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h J:\autorun.inf
  • <SYSTEM32>\attrib.exe +r +a +s +h "L:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h L:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "M:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +r +a +s +h K:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "L:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "L:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +s +h +r +a "J:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +r +a +s +h G:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "H:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "H:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +s +h +r +a "G:\rесyсlеr\desktop.ini"
  • <SYSTEM32>\attrib.exe +s +h +r +a "G:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "G:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +s +h +r +a "I:\rесyсlеr"
  • <SYSTEM32>\attrib.exe +r +a +s +h "I:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h I:\autorun.inf
  • <SYSTEM32>\attrib.exe +r +a +s +h "H:\rесyсlеr\.bat"
  • <SYSTEM32>\attrib.exe +r +a +s +h H:\autorun.inf
  • <SYSTEM32>\attrib.exe +s +h +r +a "I:\rесyсlеr\desktop.ini"
Modifies file system :
Creates the following files:
  • %TEMP%\1.tmp\doceraser.bat
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\rесyсlеr\desktop.ini
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: '' WindowName: ''