Re: Returned Mails

["Murad Talukdar" <talukdar_m () subway com>]

Looks like the spoofing ability of virus engines that have infected pc's
with your email address in them. The virus engine substitutes your address
in the FROM field and so you get the return message even though you haven't
sent anything to that person.

The variants have been coming out periodically so there will every now and
then be a new 'rash' of these as they infect then get cleared up. Then a
'new' one will come out with modified attacks etc etc. Then you get a bunch
of these return messages and so on.


Murad Talukdar


----- Original Message ----- 
From: "Guru4u Support" <support () guru4u co uk>
To: <security-basics () securityfocus com>
Sent: Tuesday, April 27, 2004 3:55 AM
Subject: Returned Mails


> Hi,
>
> This is probably a stupid question but I could do with some confirmation
> of what I think is happening. I've been receiving a lot of 'return' emails
claiming
> they have been returned as I have a virus. Example below:
>
>
> A virus was found in a message sent by this
> account.
>
> --- Scan information follows ---
>
> Result: Virus Detected
> Virus Name: W32.Netsky.C@mm
> File Attachment: posting.txt.com
> Attachment Status: deleted
>
> --- Original message information follows ---
>
> From: *************@guru4u.co.uk
> To: ********.com
> Date: Fri, 23 Apr 2004 23:32:12 +0100
> Subject: SPAM: the truth?
> Received: from netcel.com ([80.42.154.232])
>  by nospam.netcel.com (SAVSMTP 3.1.0.29) with SMTP id M2004042323185126674
>  for ********.com>; Fri, 23 Apr 2004 23:18:52 +0100
>
>
>
> I have up to now guessed these were down to 'someone' else's pc infected
> with netsky or mydoom but after a lull I have been bombarded with loads
> of such mails over the course of the day.
>
> I would just like some reassurance that this is indeed due to other
> people infected boxes rather mine. I have of course run several full
> system scans with Norton av with the latest definitions etc and do use a
> firewall, Spybot etc.
>
> I've googled and this starts to confirm my suspicions but isn't
authorative.
> Thanks in advance,
>
> Guru
>
>
>
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--
>



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to facilitate one-on-one interaction with one of our expert instructors. 
Attend a course taught by an expert instructor with years of in-the-field 
pen testing experience in our state of the art hacking lab. Master the skills 
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