stephen tan said:

>> Instead of the true URL of <img
>> src="http://www.1stspots.com/images/business.jpg";>, this spammer
>> inserted
>> <img
>> src="http://www.1stspots.com/images/business.jpg";>
>>
>
> heh, pretty sneaky...the line immediately above is supposed to be "hexed
> up" but it was automatically "converted" to normal plaintext here.

Hey yeah, look at that. I pasted in the hex-encoded line, but it has now
been converted.

> "what" is doing this "conversion"? php? apache? the browser?

I don't know. It's curious. The browser certainly *could* do it.

>> Apparently SquirrelMail's unsafe image protection doesn't recognize the
>> encoded URL as an external URL, so the external images displayed
>> immediately.

Precisely. If others spammers start to use this technique en masse, our
unsafe image protection will become useless.




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