How should ISPs notify customers about Bots (Was Re: DNS Hijacking
Joe Greco
jgreco at ns.sol.net
Mon Jul 23 20:35:11 UTC 2007
> On Mon, 23 Jul 2007, Joe Greco wrote:
> >> Although this seems to be the first bit mistake in over two years, does
> >> that make the practice unacceptable as another tool to respond to Bots?
> >
> > The practice of blocking public EFnet servers?
>
> As I've said multiple times, sometimes mistakes happen and the wrong
> things end up on a list. I doubt that was the intent.
>
> Many people have suggested blocking C&C servers used by bots over the
> years.
There's a difference between blocking actual C&C servers and blocking
general IRC servers that are incidentally being used as C&C servers.
> > Yes, when there are better solutions to the problem at hand.
>
> Please enlighten me.
Intercept and inspect IRC packets. If they join a botnet channel, turn on
a flag in the user's account. Place them in a garden (no IRC, no nothing,
except McAfee or your favorite AV/patch set).
Wow, I didn't even have to strain myself.
... JG
--
Joe Greco - sol.net Network Services - Milwaukee, WI - http://www.sol.net
"We call it the 'one bite at the apple' rule. Give me one chance [and] then I
won't contact you again." - Direct Marketing Ass'n position on e-mail spam(CNN)
With 24 million small businesses in the US alone, that's way too many apples.
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