full-disclosure - Proposal: how to notify owners of compromised PC's

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From: mobil at tzi.dhs.org (Thomas Zangl - Mobil)
Subject: Proposal: how to notify owners of compromised PC's

Am Wed, 28 Jan 2004 14:30:46 +0100, schrieb "Erik van Straten" <emvs.fd.3FB4D11C@....tn.tudelft.nl>:

Hi,

>If major sites like Google, MSN etc. would query rapid DSL and dialup
>blacklists, they could visually inform the visitor that their PC is
>listed (+ inform them what to do, direct them to online AV etc).

Bad idea! Think about all those hosts listed in a RBL and the users can?t
do anything about it? Especially dailup/dsl users with dynamic IP?s. So,
I see a warning that my IP is blacklisted because of some idiot spamming
around with my current IP hours ago?

A working solution (practiced at the TU Graz / Austria) would be an open
mail relay for every user in the ISPs address space and block all outgoing
connections to port 25. The users will be forced to use the ISPs relay and
can?t send out virii/[apply your favorite filter rule here] etc...

My 2 cents ;)
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