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From: Jos at meltemi.co.uk (Jos Osborne)
Subject: Backdoor not recognized by Kaspersky
>Does anyone else find this new development a bad idea?
>
>I'm of the mindset that anti-virus companies should stick with what
>they're good at -- namely, detecting and handling infected files. It
>seems a bad idea to start down the natural language processing road.
>Are they scanning just for Bagle/Beagle style e-mail, or are their
>methods more general? What about messages of the form:
>
>'Password is a long yellow fruit enjoyed by monkeys.'
>
IMHO, anybody who actually thinks for a second of unzipping an attachment with that kind of message is straying into AskingForItland.
Even better how about:
'Password is a long yellow fruit enjoyed by monkeys. FALSE Password: 22103'
So the Av software scans the Zip as perfectly safe, and informs the user that all is well.
>
>What about messages in languages other than English? I can easily see
>this becoming an arms-race, and one the anti-virus folks have no chance
>of winning.
What about "compression bombs"? Trying to add another task is just opening another vulnerability.
Jos
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