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| Subject: | Re: New Spam Technique |
|---|---|
| Date: | Thu, 19 Jul 2007 18:08:10 -0600 |
Hi List,
We operate several mail servers with catch all accounts and have noticed a lot of Mailer Daemon 'delivery failed messages mails from genuine sites (mostly German)arriving recently. It would seem the spammers are sending out e-mails with a PDF attachment and a forged senders address to bogus recipients at these organizations whose mail server rejects the message and sends notification to the forged sender. We have opened one attachment on an isolated machine and it was one of the 'watch these stocks they're going through the roof messages (not exactly sure of the details as my German is a bit rusty). My concern is that there could be a 'payload' embedded in the PDF. Is this possible?
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