Port 3961

Hopefully someone can shed some light on things.
I installed Zone Alarm a week ago. So far it has blocked over 85,000 intrusions. It reports approx 3000 intrusions per hour. At least 99% of these intrusions are on port 3961. Looking at a random sample of the log, the sources appear to be random. Does anyone know what these intrusions could be. I have spent the last week searching the net to try and find any info but have found nothing.
Attached is a small sample of the zone alarm log file to show the activity

 

Does the word privatecam mean anything to you? It could be some p2p program .

 

Thnanks for the reply.
Unfortunately privatecam means nothing. The only p2p program I use is kazaa lite

 

Have you allowed kazaa lite server rights (inbound connections)?
While I do not use P2P programs, most will want inbound connections to certain ports. If you block these inbound connections (server rights) for a P2P program, you can expect to see a lot of blocked inbound connection attempts in your firewall logs.

Regards,

CrazyM