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Group accounts and false mail

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Group accounts and false mail - 27.Aug.2003 3:03:00 AM   


Posts: 1
Joined: 27.Aug.2003
From: Columbia, SC
Status: offline
Good Evening,
I have several generic accounts and group accounts (ie webmaster, admissions, financialaid, helpdesk, etc.) at the school. I am using ex 2k with Trend Micro and GFI on a Dell server. I have a DMZ set up with a Cisco PIX. The problem that I am experiencing is that I am noticing mail being sent from my webmaster account to other users, both internal accounts and external accounts that I have never heard of or sent (I am also the webmaster). I was tipped to this when I received mail back from someone stating that my message was rejected due to the attachment, a .pif file, possibly containing a virus. I never sent this message. How is this possible? Have I been hacked? If so, how can I detect this and stop it? If not a hack, then what?

Thanks for the help and suggestions.

Post #: 1
RE: Group accounts and false mail - 26.Sep.2003 5:52:00 PM   


Posts: 3578
Joined: 21.Jul.2001
From: W Yorks, England
Status: offline
The virus itself is probably sending these messages. Get all your PCs checked for viruses.
Typical viruses could be W32/Sobig.f.

See http://vil.nai.com/vil/content/v_100561.htm
for more info.

(in reply to datechguy)
Post #: 2
RE: Group accounts and false mail - 1.Oct.2003 3:02:00 AM   


Posts: 135
Joined: 10.Dec.2002
From: Michigan
Status: offline
The new breed of viruses love to spoof sender addresses. If you can view the headers of any of the e-mails you can see an IP where the e-mails originated from. More than likely not from you.

Aside from having proper virus protection on your end, there is not much you can do.

Couple of extras to check not entirely related to the topic:
You have your server in the DMZ. You are only allowing certain ports through to the server correct?

Lastly verify you're not setup as an open relay.

Good luck,

(in reply to datechguy)
Post #: 3

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