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Win32.HLLW.Autoruner1.35743

Added to the Dr.Web virus database: 2013-04-26

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'CssAuth' = '%APPDATA%\Locations\winhlps.exe'
Malicious functions:
Creates and executes the following:
  • '%APPDATA%\Locations\winhlps.exe'
Executes the following:
  • '%WINDIR%\regedit.exe' /s %TEMP%\kb71271.log
Modifies file system :
Creates the following files:
  • %TEMP%\~DF4E74.doc
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\AWS96[1].jsp
  • %TEMP%\kb71271.log
  • <Current directory>\ka4281x3.log
  • %APPDATA%\Locations\winhlps.exe
Sets the 'hidden' attribute to the following files:
  • %APPDATA%\Locations\winhlps.exe
Deletes the following files:
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\AWS96[1].jsp
  • %TEMP%\kb71271.log
  • <Current directory>\ka4281x3.log
Network activity:
Connects to:
  • '14#.#5.227.107':80
  • 'wp#d':80
TCP:
HTTP GET requests:
  • 14#.#5.227.107/AWS96.jsp?0o######################################
  • wp#d/wpad.dat
UDP:
  • DNS ASK wp#d
Miscellaneous:
Searches for the following windows:
  • ClassName: 'WordPadClass' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'RegEdit_RegEdit' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''
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