A lot of UDP on Internet traffic, why?

One of my computers behind the ASA 5505 is

receiving a lot of traffic for Port # 32642 UDP from the Internet. I think the pc is under some sort of attacks. How can I block it through the ASA 5505 ACL. Here is the part of the newspaper. Thanks for your advice.

UDP on 122.121.200.216:26028 in 192.168.103.2:32642 idle 0: 00:00 flags.

UDP on 74.105.47.22:44376 in 192.168.103.2:32642 idle 0: 00:00 flags.

UDP on 61.18.162.210:11198 in 192.168.103.2:32642 idle 0: 00:00 flags.

UDP on 86.153.120.153:46972 in 192.168.103.2:32642 idle 0: 00:00 flags.

UDP on 87.99.35.193:41842 in 192.168.103.2:32642 idle 0: 00:00 flags.

UDP on 95.42.95.128:36832 in 192.168.103.2:32642 idle 0: 00:00 flags.

UDP on 91.113.1.20:22934 in 192.168.103.2:32642 idle 0: 00:00 flags.

UDP on 218.83.218.132:8679 in 192.168.103.2:32642 idle 0:00:01 flags.

UDP on 84.52.183.101:58947 in 192.168.103.2:32642 idle 0: 00:00 flags.

UDP on 95.84.147.92:47984 in 192.168.103.2:32642 idle 0:00:01 flags.

UDP on 151.33.164.240:28052 in 192.168.103.2:32642 idle 0:00:01 flags.

UDP on 211.238.168.107:47356 in 192.168.103.2:32642 idle 0:00:01 flags.

UDP on 213.190.208.9:24330 in 192.168.103.2:32642 idle 0:00:01 flags.

UDP on 130.226.70.86:35657 in 192.168.103.2:32642 idle 0:00:01 flags.

UDP on 79.160.192.19:51413 in 192.168.103.2:32642 idle 0:00:01 flags.

UDP on 87.105.235.130:17094 in 192.168.103.2:32642 idle 0:00:02 flags.

UDP on 173.89.33.81:63152 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 77.123.103.103:21660 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 117.27.67.69:16881 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 68.196.32.50:49495 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 196.221.188.28:21937 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 94.99.39.154:64230 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 125.87.66.223:36291 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 173.35.181.187:20824 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 121.14.211.153:16001 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 89.39.165.252:48475 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 194.154.88.38:65068 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 94.255.128.55:55007 in 192.168.103.2:32642 idle 0:00:04 flags.

UDP on 85.244.41.158:10007 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 80.67.14.79:58504 in 192.168.103.2:32642 idle 0:00:04 flags.

UDP on 89.75.88.92:34759 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 114.43.186.32:26120 in 192.168.103.2:32642 idle 0:00:03 flags.

UDP on 89.244.106.127:32901 in 192.168.103.2:32642 idle 0:00:04 flags.

UDP on 91.146.49.73:64020 in 192.168.103.2:32642 idle 0:00:04 flags.

UDP on 205.250.63.254:4041 in 192.168.103.2:32642 idle 0:00:04 flags.

UDP on 202.28.5.51:47843 in 192.168.103.2:32642 idle 0:00:04 flags.

UDP on 67.240.86.65:7569 in 192.168.103.2:32642 idle 0:00:04 flags.

UDP on 222.167.245.53:21788 in 192.168.103.2:32642 idle 0:00:04 flags.

UDP on 117.34.151.73:30538 in 192.168.103.2:32642 idle 0:00:04 flags.

the google search for this port, seems, this PC has a P2P program called Ares, you might want to check if it's true, and if this is the case, then the PC generates these connections to the internet and no internet on this PC, so you will need to block as a result.

Tags: Cisco Security

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