Re: ISP phishing

[Gadi Evron <ge () linuxbox org>]

Robert Boyle wrote:
> At 05:37 AM 6/23/2005, you wrote:
>
> > Hi guys. I notice a large increase in recent weeks of ISP directed
> > phishing - largely because of worms moving backward to using the user's
> > own domain for the spam, but not just in the from: address.
> >
> > I believe this started out as a "let's feel this out" or "wow, that
> > worked, let's phish ISP's directly too". I now have several reports
> > that point to this becoming a serious problem.
> >
> > Old with a spark of new, but definitely a problem.
> >
> > Anyone else dealing with this?
>
>
> Due to the huge number of variants in the wild, our AV software can't
> keep up (probably nobody's can). Instead, we enabled a global rule which
> blocks any email from accounts such as billing, root, postmaster,
> antivirus, abuse, security, etc. which don't originate from our
> management IP space where our people work. As a result, we have stopped
> these phishing scams for our users dead in their tracks.
>
> -Robert

We did as well, but we did not yet find a solution for legit bounces..
it naturally breaks that.

It's a temporary solution to what I see that is going to become very big.