OSEC

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Re: Discovering and Stopping Phishing/Scam Attacks

From: byte_jump (bytejumpgmail.com)
Date: Tue Apr 26 2005 - 18:59:42 CDT


Like I said, I've implemented something as simple as a Perl script
that is controlled by cron and had it be very, very effective at
grabbing sites while they were still in development. The greatest
difficulty is maintaining a list of known, good referrers, but as long
as you train your web development guys this isn't too bad. All the
implementations I've been involved with have had very few false
positives.

byte_jump

On 4/26/05, Michael J. Pomraning <mjp-incidents-mlsecurepipe.com> wrote:
>
> Steven,
>
> You may not even need honeytoken resources.
>
> If you can detect "deeplinking" or unusual navigational patterns
> associated with your web app login, you may have a malicious third
> party at play. Was 'process-login.asp' fetched from an offsite
> Referer? Was that the first hit the client's session?
>
> Yes, there would be tuning and false positives (search engines may
> want your images) and profiling (what does a typical login look
> like?). Scam sites that are completely self-contained, or that
> cleverly interleave themselves in an otherwise ordinary browsing
> (e.g., a convincing login popovers) would remain undetected. Some
> folks might be behind proxies that strip Referer strings, etc.
>
> However, I share your belief that a good number of these phishing
> sites create incidental traffic that could be detected -- at least
> until attackers get more sophisticated.
>
> Has anyone tried to detect in more-or-less realtime through log (or
> wire capture) analysis?
>
> Regards,
> Mike
> --
> Michael J. Pomraning, CISSP
> Project Manager, Infrastructure
> SecurePipe, Inc. - Managed Network Security
>
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