UDP traffic to port 50368

Published: 2005-10-24
Last Updated: 2005-10-24 17:39:34 UTC
by Johannes Ullrich (Version: 1)
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A reader (Bill) reported that he is seeing a substantial increase of UDP port 50368 traffic getting blocked by the firewall. The traffic appears to originate from Europe, and uses numerous source ports (but many of them are "well known").

Here a quick sample of sources and source ports
87.122.209.173/11069
81.219.217.70/9204
83.77.212.239/1037
172.212.40.49/8080
84.161.4.133/9086
82.251.45.191/10030
24.0.235.178/49308
83.40.83.84/11112
66.172.60.201/7871

No idea what's causing that. We have almost no other traffic to this port in our database. If you see any outbound traffic like that, let us know.


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