phishing detection bug

Julian Field MailScanner at ecs.soton.ac.uk
Fri Feb 18 16:25:30 GMT 2005


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Okay, a simple trap for this one would be that the real URL must contain
at least one "." character. How about that?

John French wrote:

>The problem definitely seems to be when the href= doesn't contain a url,
>but the text between the > and </a> does.  Here's another example:
>
>before:
><body bgcolor="#ffffff" text="#000000">
>test&nbsp;<a href="thisisnotaurl">http://thisisaurl.com</a> test<br>
></body>
>
>after:
><body bgcolor="#ffffff" text="#000000">
>test&nbsp;<a href="thisisnotaurl"></b></font><font
>color="red"><b>MailScanner has detected a possible fraud attempt
>from "thisisnotaurl" claiming to be</b></font> <font
>color="red"><b>MailScanner has detected a possible fraud attempt
>from "thisisnotaurl" claiming to be http://thisisaurl.com</a> test<br>
></body>
>
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Julian Field
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