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antiphishing
Phishing Scam Terminator
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join:2004-06-09
Wilkes Barre, PA
| Re: largest "spam blasts" in the past twelve months said by kpatz  :Most recent one I got is: Seems like the headers are consistent, particularly the User-Agent header. It's always that particular build of Thunderbird.  I noticed that particular point also regarding the Thunderbird build number.
I thought the junk email along with the Trojans where coming from a single zombie machine with the Thunderbird email software installed.
After looking at all the emails again, at three of the spams infected with the malware had different IP numbers associated with them, which leads me to believe that the information is forged.
X-Originating-IP: [189.169.127.165]
X-Originating-IP: [201.79.68.55]
X-Originating-IP: [162.39.116.180]
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|  kpatz
MY HEAD A SPLODE
Premium
join:2003-06-13
Manchester, NH
| Re: largest "spam blasts" in the past twelve months They're using a botnet to distribute these, so chances are every copy you see will come from a different IP.
The Thunderbird header is likely hard-coded in the template used to construct the emails.
Some other things I've noticed: every one has two Received: headers. This makes it look like each email is being relayed through another SMTP server, but in my limited testing, the IP address that sent the spam didn't respond on port 25, so the second Received: is likely spoofed with a random IP.
The GIF files containing the message are formatted uniquely. The name of the GIF varies, as well. The width varies from one to next, causing the text to wrap/format differently across different samples. Of course, the attachment name and password are always different, too. The passwords seem to always be three letters, two numbers, so this is probably a fixed random password generator algorithm.
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antiphishing
Phishing Scam Terminator
Premium
join:2004-06-09
Wilkes Barre, PA
1 edit | Re: largest "spam blasts" in the past twelve months said by kpatz :Some other things I've noticed: every one has two Received: headers. This makes it look like each email is being relayed through another SMTP server, but in my limited testing, the IP address that sent the spam didn't respond on port 25, so the second Received: is likely spoofed with a random IP. I am starting to notice that the IP number in the "X-Originating-IP" line doesn't respond to port 25, 137,139 or 443.
I am thinking the Trojan infected machine (66.8.213.116) is being used to send the junk email at a much higher port number.
canonical name cpe-66-8-213-116.hawaii.res.rr.com.
aliases
addresses 66.8.213.116
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X-Apparently-To: sgtpepper_1967@yahoo.com via 216.252.121.75; Fri, 13 Apr 2007 00:48:54 -0700
X-YahooFilteredBulk: 66.8.213.116
X-Originating-IP: [66.8.213.116]
Return-Path:
Authentication-Results: mta257.mail.re4.yahoo.com from=wsc.edu; domainkeys=neutral (no sig)
Received: from 66.8.213.116 (HELO cpe-66-8-213-116.hawaii.res.rr.com) (66.8.213.116) by mta257.mail.re4.yahoo.com with SMTP; Fri, 13 Apr 2007 00:48:52 -0700
Received: from ijg ([149.104.110.89]) by cpe-66-8-213-116.hawaii.res.rr.com with Microsoft SMTPSVC(6.0.3790.0); Thu, 12 Apr 2007 21:48:18 -1000
Message-ID:
Date: Thu, 12 Apr 2007 21:48:18 -1000
From: "Postmaster"
User-Agent: Thunderbird 1.5.0.9 (Windows/20061207)
MIME-Version: 1.0
To: sgtpepper_1967@yahoo.com
Subject: Virus Detected!
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| | | AdamD
join:2002-01-09
Maspeth, NY | Re: largest "spam blasts" in the past twelve months We don't have a spam problem. We have a stupidity problem. Actually, stupidity epidemic... A dog or cat can be taught not to do something, yet there are people stupid enough to open those attachments.
A. | |
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antiphishing
Phishing Scam Terminator
Premium
join:2004-06-09
Wilkes Barre, PA
| Re: largest "spam blasts" in the past twelve months said by AdamD :We don't have a spam problem. We have a stupidity problem. Actually, stupidity epidemic... A dog or cat can be taught not to do something, yet there are people stupid enough to open those attachments. A. I couldn't say it any better. 
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