RE: Port Scans
- From: "Ball, Dan" <DBall@xxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 16 Mar 2005 11:00:24 -0500
Spoofing in ISA2004 comes up with its own separate alert, but I don't
see any spoof alert for the same timeframe as the scan alert.
________________________________
From: Steve Lunn [mailto:Steve.Lunn@xxxxxxxxxxxxxxxx]
Sent: Wednesday, March 16, 2005 10:02
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Port Scans
http://www.ISAserver.org
I would imagine it's IP Spoofing. I get quite a few of these in ISA2k,
but at least it tells
you that it's received the packet on the wrong interface and drops it.
Regards,
Steve
Steve Lunn - PC & Network Support
Microsoft MCP
DDI: 01423 855101
Fax: 01423 855181
-----Original Message-----
From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
Sent: 16 March 2005 14:59
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Port Scans
http://www.ISAserver.org
Does anyone have an answer on this other than laughter?
-----Original Message-----
From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
Sent: Tuesday, March 15, 2005 10:25
To: [ISAserver.org Discussion List]
Subject: [isalist] Port Scans
http://www.ISAserver.org
I get an lot of these alerts on my ISA2004 server:
ISA Server detected an all port scan attack from Internet Protocol (IP)
address xx.xx.xx.xx.
Normally, I just ignore these, as there isn't much I can do about
outside servers. However, I've noticed a few of these with IP addresses
on our internal network, which has me concerned. Whenever I see one of
these, I check every log I can think of, and don't find any other
indication of any activity other than the alert itself. Even the
Firewall Log doesn't show any blocked packets during that time period.
Do you think the IP address of the scanner is being spoofed?
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