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Win32.HLLW.Autoruner.52375

Added to the Dr.Web virus database: 2011-06-24

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'sII¶e”' = '%APPDATA%\sII¶e”.e–µ.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'sII¶e”' = '%APPDATA%\sII¶e”.e–µ.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'svchost' = '%APPDATA%\wtrxg\lWmDab.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\Svchosted.exe
Malicious functions:
Creates and executes the following:
  • %APPDATA%\wtrxg\lWmDab.exe 
Executes the following:
  • <SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svchost" /t REG_SZ /d "%APPDATA%\wtrxg\lWmDab.exe" /f
  • <SYSTEM32>\cmd.exe /c """%TEMP%\HXdGV.bat"" "
Modifies file system :
Creates the following files:
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\p–µOf[1]
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\p–µOf[2]
  • %APPDATA%\sII¶e”.e–µ.exe
  • %TEMP%\HXdGV.bat
  • %APPDATA%\wtrxg\lWmDab.exe
  • %APPDATA%\lovely.ini
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\Svchosted.exe
  • %APPDATA%\wtrxg\lWmDab.exe
Network activity:
Connects to:
  • 'localhost':1037
  • 'ht###.localdomain':80
TCP:
HTTP GET requests:
  • ht###.localdomain//p??O#############################################
  • ht###.localdomain//p??O###################################
Miscellaneous:
Searches for the following windows:
  • ClassName: 'MS_WebcheckMonitor' WindowName: ''
  • ClassName: 'MS_AutodialMonitor' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''