Security Incidents mailing list archives
RE: Possible Mail server compromise ?
From: "Worrell, Brian" <BWorrell () isdh IN gov>
Date: Mon, 4 Feb 2008 13:58:51 -0500
Faas, Are you sure that it was started by your Exchange server, and not a workstation on the network? How detailed do you have your Exchange logging set too at this point? Also by taking it off line, does this mean you rebooted it, or just took it off the network? I personally do not know of any Exchange 2007 bugs, but never would bet on anything being perfect. How is your Server? Anything else on the server seem odd? Hope that helps some. -----Original Message----- From: Faas M. Mathiasen [mailto:faas.m.mathiasen () googlemail com] Sent: Monday, February 04, 2008 1:28 PM To: forensics () securityfocus com; incidents () securityfocus com Subject: Possible Mail server compromise ? Dear List, "We" have noticed a odd traffic pattern emerging from our mail servers, an important amount of data left our network over the mail server. Please understand "we" would like to remain anonymous at this point. We monitored our mail servers for availability and the patch level is as to latest specifications, additionally we have anti-virus software installed on all E-mail servers. Is anybody aware of an unpatched exploit against Exchange Server 2007 ? Is there any other threat we have not taken into consideration ? Do you have recommendations as to how to proceed ? Obviously our mail server hold important information and we can't simply turn them off, though we have procedures on how to respond to incidents we don't have a procedure for this particular case, as our mail server is inside our company, maintained and updated regularly we had no important reason to believe it could be compromised. We are currently investigating and took it off line for a few hours, while installing a new clean server. Regards, Faas M. Mathiasen CISSP Denmark
Current thread:
- Possible Mail server compromise ? Faas M. Mathiasen (Feb 04)
- RE: Possible Mail server compromise ? Worrell, Brian (Feb 04)
- Re: Possible Mail server compromise ? Jon R. Kibler (Feb 04)
- Re: Possible Mail server compromise ? Tony Maupin (Feb 04)
- Re: Possible Mail server compromise ? Faas M. Mathiasen (Feb 04)
- Re: Possible Mail server compromise ? Valdis . Kletnieks (Feb 05)
- Re: Possible Mail server compromise ? Tony Maupin (Feb 04)
- Message not available
- Re: Possible Mail server compromise ? Faas M. Mathiasen (Feb 04)
- Message not available
- Re: Possible Mail server compromise ? Faas M. Mathiasen (Feb 04)
- Re: Possible Mail server compromise ? Gary Baribault (Feb 04)
- Re: Possible Mail server compromise ? Faas M. Mathiasen (Feb 04)
- Re: Possible Mail server compromise ? Faas M. Mathiasen (Feb 04)
- Re: Possible Mail server compromise ? Michael Loftis (Feb 13)