Did someone take over my computer?

Giganews Newsgroups
Subject: Did someone take over my computer?
Posted by:  Huck (huckrori…@groundwork.org)
Date: Fri, 24 Nov 2006

I got a message saying that an email I sent was undeliverable.  I didn't
send any email to this party.  I have received several such messages.  Is it
possible that my computer has some sort of virus that is sending messages
from my computer?  If that is possible, how can I learn about it and what
can I do?

The message I got was the following:

Subject: Sale Cialis USD28 Ambieen

Your message

  To:      holm…@petals.com
  Subject: Sale C1ALIiS USD28, AMBIEEN US22
  Sent:    Fri, 24 Nov 2006 12:39:34 -0500

did not reach the following recipient(s):

holm…@petals.com on Fri, 24 Nov 2006 12:50:19 -0500
    The recipient name is not recognized
The MTS-ID of the original message is: c=us;a= ;p=petals
    MSEXCH:IMS:Petals Decorative Accents:PDA:PDAMSX55 0 (000C05A6) Unknown