A little bit of NTFS magic.

[Lucid]

Open a Command Prompt (Run: cmd), and type:

echo Some text here > test.txt:hidden.txt

Run dir, note that the new file (test.txt) is empty.

Now type:

notepad test.txt:hidden.txt

Pretty funky, huh.

This is nothing new really, but I just found out about it today.

For more info, see http://patriot.net/~carvdawg/docs/dark_side.html

[Marshmallowman]

I hope thats not a sneaky way of hiding virus

[az]

I think there was a demonstration virus that used NTFS streams, but none really in the wild. A year or so ago most virus scanners wouldn't scan stuff like this, Kaspersky released some statement about this being a potential security risk. Dunno if anything has changed, really.

AZ

[MultimediaMan]

http://www.winnetmag.com/Windows/Articles/ArticleID/19878/pg/3/3.html