Could you please...
...take your security (more) seriously?
by Arie Slob
Hello Windows users,
OK, the title seems a bit weird does it? Lets start at the beginning....
Last Monday I started receiving lots of weird e-mails, which - when viewed in the preview pane of Outlook Express 6 - would pop up the Open Attachment Warning as shown in the screenshot to the right. Now I know enough about e-mail to know that if I get this warning without trying to manually open an attachment, something is verrrrrry fishy. This is typical worm (virus) behaviour, so instead of saving the attachment to disk (harmless in itself) or opening it (very harmfull!), I decided to just press Cancel.
Next I went looking at my favorite Anti-virus Research Site SARC (Symantec Antivirus Research Center), where I quickly discovered that this was a new worm (on an old theme) called Badtrans.B.
I posted a message on our Web site's home page informing our visitors of this new pest.
OK, so why am I writing this? Well, first of all because I'm a little disappointed. There must be a great number of people that do not take the security of their Operating System seriously. You see, the vulnerability exploited by this worm was patched by Microsoft on March 29, 2001 - a full 7 months ago!
Just in case you are wondering, the vulnerability patched was that Outlook/Outlook Express would allow the attachment to execute without prompting the user.
Now, I have been receiving 15-25 of these worms a day since Monday. And what makes me so upset is that 80% come to the email address I explicitly use when sending out this weekly Newsletter. And since I always post any patches Microsoft offers for their OS/browser in the Newsletter, this would mean that the people who got infected do not seem to bother to apply these patches!
Some people try to defend themselves by saying "We can have the best Anti-Virus and Firewall software available. But that does not mean that something will not sneak through. It can sneak in between updates."
Yea right! First of all here, in this case, we are talking about a known vulnerability for which a patch has been available for over 7 months. If you're going that long without updating your software in this day and age, then you have some serious problems that just updating your AV definitions won't fix (mind you, they do update their AV definitions... go figure!).
Using a virus scanner to be an additional line of defense is OK (and is considered even good security). In the case of the ordinary virus, you have (at least) two levels of defense: your virus scanner and your own good common sense. And since the viruses go *faster* than the scanners, so you end up using your common sense... Common sense is the really critical link in that chain and the virus scanner is only the helper.
OK, my message here: please keep your system updated, and try to use some common sense when receiving attachments. I've also said on numerous occasions that the rule should be that you don't open any attachments. You can have exceptions to that rule, but you'd better be careful and know what you are doing!
I'd love to hear your comments!
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IT Professionals
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