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COMMAND HTML SYSTEMS AFFECTED HTML PROBLEM Alex Prestin found following. You may have heard of "web-bugs" before. Or you may not have. For the benefit of the less-experienced, here's what they are and what they do. "Web bugs" are small, 1x1 (or similar-sized) transparent GIF images which can be used to track the movement of a user around the web. About 1 in 10 sites use them. Their effectiveness at this task is somewhat questionable, but they can be used more effectively for a different task. Alex started noticing something very disturbing in the HTML in spam mails recently. He started seeing web bugs. Below is an example from a recent email: <img src="http://www.megahardcoresex.com/sites/XXXXXXXX0 (continued) 3b/sf03b08152001.gif?M=XXXXXXXXX&ID=wakko@bitey.net" width="1" height="1"> See it? A web bug. If I opened this mail in an HTML-capable browser, that little image would've popped up and You would've been none the wiser. Your address would also have been verified by the sender, and stored in a large database of valid recipients. And if you were running WinNT 4 and that referrer pointed to a server advertising a share, NT would send your username and password to try to log you on without your knowledge. It could be grabbed and sent back to your machine, logon, and the atttacker would have all rights to your machince and network that the ID you're using has. SOLUTION This is a client problem that needs to be supported there. For example, Kmail - the KDE Mailer - has a "download remote URLs" checkbox. Simply turning that off stops HTML mail messages from having things like <img> tags being activated. Under Outlook, this isn't possible, but there are some things you can do... In Outlook, you can use Message Rules to move emails with "Content-Type: text/html;"/"Content-Type: multipart/alternative;" to a HTML folder. This move does not 'preview' the mail, and links are not parsed. When you get a few html mails in your special folder, just disable the fw client (preventing outbound connections) and view the mail. If you get html mail internally, you can allow that in to your Inbox with some more creative rules.