[Full-Disclosure] Microsoft hides certain types of files from your eyes + some filename parsing bug
labaiss2003 at yahoo.co.uk
Thu Jul 8 00:37:24 BST 2004
Microsoft HIDES certain types of files from your eyes:
This one is old unpatched "behaviour" ...
If you will create in windows explorer file :
with content :
alert("Hello, I'm Silly Billy !");
It will be executed if you will add CLSID to it's name and user double clicks it :
CLSID will remain hidden (explorer will not show it up in any means)
File name for user will remain : test.txt
This adds numerous possibilities for viruses to fool end user into safe content.
another filename parsing bug (system even cannot access it) :
By some technics windows still allows to write file on harddisk with funny name like :
test [good one :] .avi
End user will expierence certain difficulties to remove it afterwards from system.
It's name will change to "test [good one", it will have no extension, will show up 0 bytes etc, etc...
Of course .url and .lnk are hidden as well, being "shortcuts" in m$ way. The contents of those files are up to you ... :-)
For example : file "test.url" with this content will open your browser with alert.
m$ is good for gaming, not for serious work..
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