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Invalid TCP Flags
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Old 11-02-2004, 22:46   #1
Proppinupthebar
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Invalid TCP Flags
My Norton Security doodah has just popped up an intrusion alert warning me of a Invalid TCP Flag attack. The IP address is 65.75.139.49 which is Managed Solutions who also do the server hosting for this site via King Pheonix.

Is this serious or just a typical thing which just happens?

EDIT : 4 poower grama
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Old 11-02-2004, 23:02   #2
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Re: Invalid TCP Flags
Not overly serious - see http://securityresponse.symantec.com...tcp_flags.html
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Old 11-02-2004, 23:04   #3
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Re: Invalid TCP Flags
Quote:
Originally Posted by pem
I'm not really concerned except for the fact it originates from Managed Soloutions who host the nthellworld.co.uk site.

The Firewall did its job!
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Old 11-02-2004, 23:08   #4
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Re: Invalid TCP Flags
Interestingly that is the old IP range not the new one though, so I wonder if this got triggered by the ongoing DOS attacks on the old IP?
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Old 11-02-2004, 23:26   #5
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Re: Invalid TCP Flags
Could be old delayed trafic from the old IP !!
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Old 11-02-2004, 23:30   #6
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Re: Invalid TCP Flags
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Originally Posted by stuartbe
Could be old delayed trafic from the old IP !!
Why only me then ? Am I special?

Norton blocked the IP for 30mins, its now unblocked and theres been nothing else since.
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Old 11-02-2004, 23:36   #7
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Re: Invalid TCP Flags
Quote:
Originally Posted by Proppinupthebar
Why only me then ? Am I special?

Norton blocked the IP for 30mins, its now unblocked and theres been nothing else since.
Strange - Have not seen anything on the pix logs......
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Old 11-02-2004, 23:48   #8
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Re: Invalid TCP Flags
just now
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