WebApp Sec mailing list archives

Re: Article - A solution to phishing


From: exon <exon () home se>
Date: Tue, 21 Dec 2004 10:09:24 +0100

Joseph Miller wrote:
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Exon,
Would you happen to have that script available? If many people had access to this script it could possibly cause DDoS and severely limit spammers. I would, of course, not necessarily recommend this particular action because of the legal implications, so I must say, "We could use this as a possible threat to illegal spammers". Thanks for the info.


No, but the gist of it was something like this

john --incremental --stdout | while read foo; do wget nastyurl\?email=$foo () microsoft com -o /dev/null; done

I added some perl to read 100 lines and spawn 100 wgets at the time (the server seemed to block if I tried to do more at a time).

Not that I actually used @microsoft.com or anything. Well. Not that I officially admit it anyway.

Anyways. I've unsubscribed this list now (too much line-noise), so Cc: exon () home se if you want replies to reach me.

Cheers.

- -Joseph

On Thursday 16 December 2004 11:47 am, exon wrote:

Ian wrote:

On 14 Dec 2004 at 13:43, Adam Tuliper wrote:

<snip>

Personally, I like stringing them on and giving them false information
and wasting their time. Its fun, I recommend all of you try it : )

You make have stumbled across a solution
here ;)

Why not code an automated system that fills
in their bogus log in screens with false
information?

There are only a limited number of banking
web sites around so a template could be
created for each.

If enough people join in these phishers
would get swamped with information and
wouldn't know the good from the bad.

Thoughts ?

This is known to be effective against spammers which use href-links in
email to verify 'live' email-addresses. It's usually highly effective if
you find something that looks like
www.some-site.com/remove_me.asp?m=email () somewhere org

I used to get around 400 spam emails a day, so I wrote a quick script to
connect to a couple of these urls a couple of million times with
auto-generated email-addresses. Sometime during the second night of
running I kept getting connection refused and spam dropped down to
around 40 / day.

Another anti-mischief act was when some organisation (can't remember
which) found out the IRL address of a spammer who had used their
mail-server and signed him up for every free hard-copy snailmail ads and
catalogues they could find. As it turned out, the spammer received some
four tons of advertising papers and leaflets through his mailbox in a
week, effectively causing a DoS on his own apartment. Retaliation can be
so fun. ;)

/exon

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