Full Disclosure mailing list archives

Re: Port 6881 scans - why?


From: Blue Boar <BlueBoar () thievco com>
Date: Thu, 25 Sep 2003 15:11:41 -0700

Paul Johnson wrote:

Am getting a Distributed (several diverse net blocks) and fair quantity
(100 packets per min. per IP) of port 6881 hits...

Any idea what this is (other than possibly BT - Snark  - per google)...
No I have not run / analysis with a sniffer...  Currently hitting the
FW...

TCP, I assume?

It probably IS BitTorrent. If any of the users behind your firewall are trying to use BitTorrent, then that would cause outside people to try to hit port 6881 on your outside interface. Check for DST TCP 6881-6889 going from the inside to the outside, that would be your BT user, if that's what it is.

                                        BB

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