Tons of 1.txt messages

[Drew Marshall]

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Michael Baird wrote:

>Seeing the here as well
>
>Regards
>Michael Baird
>
>  
>
>>We are suddenly (within the past hour) seeing dozens of reports from
>>users about messages coming in with an attachment 1.txt (wich is 80b
>>and empty).  There is always a 1 in the body and nothing else.  The
>>source address is always forged and most of them seem to be coming
>>from large ISP user IP pools.  
>>
>>Here is a sample header:
>>
>>Received: from x.americanhm.com (sams2.americanhm.com [x.x.x.x]) by
>>x.americanhm.com with SMTP (x) 
>>        id PKVMXV6N; Fri, 22 Jul 2005 13:53:18 -0400 
>>Received: from betru.net (frnk-d9b96a96.pool.mediaWays.net
>>[217.185.106.150]) 
>>        by x.americanhm.com (8.12.10/8.12.10) with SMTP id
>>j6MHmr22028595 
>>        for <mg at americanhm.com>; Fri, 22 Jul 2005 13:48:55 -0400 
>>Date: Fri, 22 Jul 2005 19:59:41 +0100 
>>To: "Mg" <mg at americanhm.com> 
>>From: "Mg" <mg at ales.com.ec> 
>>Subject: 1 
>>Message-ID: <tmzgclxpkjdscxevsvp at americanhm.com> 
>>MIME-Version: 1.0 
>>Content-Type: multipart/mixed; 
>>        boundary="--------elrddgzjoshelqmabgkc" 
>>X-SAMS-Information: Please contact the ISP for more information 
>>X-SAMS: Found to be clean 
>>X-SAMS-SpamCheck: not spam, SpamAssassin (score=-4.48, required 4.4, 
>>        BAYES_00 -4.90, HTML_MESSAGE 0.10, MIME_HTML_ONLY 0.32) 
>>X-MailScanner-From: mg at ales.com.ec
>>
>>----------elrddgzjoshelqmabgkc 
>>Content-Type: text/html; charset="us-ascii" 
>>Content-Transfer-Encoding: 7bit
>>
>>----------elrddgzjoshelqmabgkc 
>>Content-Type: application/octet-stream; name="1.txt" 
>>Content-Transfer-Encoding: base64 
>>Content-Disposition: attachment; filename="1.txt"
>>
>>----------elrddgzjoshelqmabgkc--
>>    
>>
So what are they? I guess they are Spam as they are unsolicited but I 
guess they are not a virus (Or are they the outcasting from a virus)? I 
don't remember reading any reports about this type of file.

Drew

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