[lug] mailman and AV

Lee Woodworth blug-mail at duboulder.com
Wed Nov 3 12:10:12 MST 2004


D. Stimits wrote:
> ...
> 
>> Received: from homeoffice.org (adsl-70-240-238-238.dsl.hstntx.swbell.net
>>         [70.240.238.238])
>>         by new.community.tummy.com (Postfix) with SMTP id B93B720CCDA4
>>         for <lug at lug.boulder.co.us>; Mon,  1 Nov 2004 23:09:33 -0700 
>> (MST)
You can only rely on the very top Received: header since that is 
generated by final MTA. All the others are suspect since they can be 
created by the mail originator. In the case of the headers I posted, the 
top Received: header is from tummy.com.

> 
> ...
> 
> host 70.240.238.238
> 238.238.240.70.in-addr.arpa domain name pointer 
> adsl-70-240-238-238.dsl.hstntx.swbell.net.
> 
> That so far is a forgery.
> 
> host homeoffice.org
> homeoffice.org has address 216.55.156.109
> 
> This too does not match homeoffice.org.
> 
> host new.community.tummy.com
> new.community.tummy.com has address 198.49.126.209
> 
> Perhaps it is coming through tummy.com, I'm not sure, but there is 
> certainly some forgery going on. The real sender at the start of it all 
> seems to be from swbell.net, and all in the header is certainly not 
> correct. Anyone know who has a windows machine on swbell.net that also 
> has the lug members in their address book? Most of these viruses send to 
> address book recipients, and if someone has those those LUG people in 
> their address book, would be a reason why 2 or more people on this list 
> got it. I'm not great at sleuthing headers, but this one is not 
> completely honest.
> 
> D. Stimits, stimits AT comcast DOT net
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