Strange emails.
 

Does anyone else get these:

sample email------------------------------------

I'm sorry to have to inform you that I wasn't able to deliver your message to the following addresses:



Undeliverable mail to wvtdfs@puremail.net

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I have been getting a couple a day for a coupe of months. They are all different but very similar. I thought it might be a virus but I haven't be able to detect anything from several different AV tools and there is never an attatchment or anything. I get them at work and at home on both my linux and windows boxes. I supose I should mention that they are never from anyone that I have actually tried to email.

I have been getting them also. I believe it is due to a virus on the true senders computer. The virus sends out e-mails itself. This is why many ISP's block port 25, so that a virus infected computer can't send out e-mails itself. (Actually, because if they don't, AOL will deny service to their customers).

That's kinda what I figured but thought I would ask around.

This may be helpful reading. Let me know if it's helpful or not. I may modify it based on feedback.

Click here and click on "Joe Job"

By the way, I should point out that this describes "Joe Jobs" in generic terms and doesn't specificly mention viruses and worms that spoof their from address. The situation and symptoms are essentially the same, though.

I read several of the sections on chorts website. The red on black made for difficult reading for me. One thing he may add to on the section about combatting viruses/worms is to check if windows computers on the network are sharing any system drives.

There is a section in the book "Firewalls and Internet Security" 2nd ed.
The author was able to demonstrate how someone with a high gain antennae can tap into a wi-fi network inside a business from a distance of 20 miles! Nice to know that WEP doesn't work!

I don't know how much more secure it is, but i keep my wireless on a separate subnet i.e. I have 2 routers. That way if someone does hack into my wireless network they can access the net and maybe hack my laptop but would have to make it through my router to get to the other side.