[Esd-l] Re: Suggested "Badtrans.B" recipe addition

John D. Hardin jhardin at impsec.org
Tue Nov 27 13:00:51 PST 2001

On Tue, 27 Nov 2001, Brett Glass wrote:

> True; it's not 100% certain to work. But I want to have lots of
> checks on tap so that there's more chance of catching the worm.
> Additional checks also would make the system resistant to
> mutations.

Adding additional ANDed conditions doen't make you more
mutation-proof, it makes you more mutation-sensitive. For example, if
you add the ^From:.*_< condition and it mutates to stop doing that,
you'll suddenly stop trapping that variant.

The conditions in this recipe are all ANDed.

 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
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