Re: [fw-wiz] sendmail spamming
From: Chuck Swiger (chuck_at_codefab.com)
Date: 05/29/03
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To: "Robert E. Martin" <rmartin@fishburne.org> Date: Thu, 29 May 2003 13:28:11 -0400
Robert E. Martin wrote:
[ ... ]
> I have just finished locking up and exploit in our email server. This
> spawned from a formmail script left on our web server I neglected to
> delete.
Good. That is, it's good that you're securing your server. It's not good that
you need to do so in order to prevent someone else from abusing your resources.
> I noticed CPU activity spikes on the email server and found that our web
> server was spamming our email server due to the classic formmail exploit.
> My question is this. What is the motivation behind such an expliot? What
> is there to gain from this other than job security for a person like me?
> This kind of action makes no sense to me.
The motivation behind spamming is simple: greed. Spammers get paid somewhere
between two and five cents per delivered message, which is why they'll send tens
of thousands of messages at a time.
-Chuck
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