Re: FTP scans from wanadoo.fr

[Todd Suiter <todd () s4r com>]

Here you go:

From: Chris Reynolds [mailto:chris () ideacatchers com]
Sent: Friday, December 07, 2001 2:53 PM
To: Intrusions List (E-mail)
Subject: Wanadoo.fr Scans


Hi all,

Good news on the Wanadoo.fr front! Their upstream provider, Opentransit
is
now aware of the scope of the scanning activity from Wanadoo.fr network
space and they have requested a list of source IPs involved in scanning
and/or attacks. Opentransit has said that they will be escalating this
issue
with Wanadoo.fr management, and they need some data to go with it.

Please forward any IDS or server logs showing Wanadoo.fr activity - the
more
source IPs we send them, the easier it will be for them to enact some
positive change at Wanadoo.fr. We should be able to get this wrapped up
very
soon!

Thanks,


On Mon, 17 Dec 2001, Paul Asadoorian wrote:

> We too have seen the exact same traffic here.  Not sure what to do about it,
> too bad there wasn't an "Ftp blacklist" sorta the same thing that exists for
> mail.  It may prove useful if the ISP suddenly realizes that half of their
> address space is being blocked on numerous routers across the Internet.
>
> Paul Asadoorian, GCIA
> ----- Original Message -----
> From: "Aaron Wolfe" <aaron () aaronwolfe com>
> To: <incidents () securityfocus com>
> Sent: Monday, December 17, 2001 12:59 PM
> Subject: FTP scans from wanadoo.fr
>
>
> > hello,
> >
> > for some time (weeks if not months) several of our remote offices have
> been
> > logging connects attempts to port 21 from various ips that resolve to
> > (something).wanadoo.fr.  since we have firewalls on many different
> networks
> > from several providers all logging these attempts, i'm fairly sure this is
> a
> > script randomly scanning ips.  I even put up an FTP server on one box to
> see
> > what would happen if port 21 was open, it attempted to login as anonymous
> > but I didn't let it go any further.
> >
> > I have made many attempts to contact Wanadoo regarding this.  I have sent
> > them logs and friendly messages asking if there is anything I can do to
> help
> > or if they would like more information.  Despite sending at least 5
> messages
> > over the last several weeks, I have never received any response at all.
> >
> > I have started gathering IPs and just blocking the networks as wanadoo
> seems
> > to be a french ISP with nothing of interest to any our our offices.  but
> > obviously I'd like to be as specific as possible when passing out null
> > routes.
> >
> > My questions, has anyone else noticed this?  I am almost certain others
> > have.  But more importantly, is there an easy way for me to find out all
> the
> > networks that belong to wanadoo so I can just block them all rather than
> > waiting for a connection from a host in each network?  Sorry if that's a
> > dumb question, i am kind of new to this.  (many thanks to this list! i
> have
> > learned alot!)  Oh, and am I over reacting here?  I know these probes
> happen
> > all the time, but when they happen at all 20+ of our sites coming from the
> > same network for several weeks...  ?
> >
> > -aaron
> >
> >
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