Welcome to the Internet! It's a fact of life when having equipment connected to the Internet. The script kiddies are always probing and trying.
Lyle Bruce B wrote: > And that's the problem. There is no such service running or such port > is not open. They only keep trying this for no reason. It might cost > us bandwidth for no reason. In fact there is no open ports on our > network whatsoever. > > Thanks > > On Mon, Nov 8, 2010 at 9:50 PM, Lyle Giese <l...@lcrcomputer.net > <mailto:l...@lcrcomputer.net>> wrote: > > Bruce B wrote: >> Hi Everyone, >> >> I have pfSense running which supplies Asterisk with DHCP. I had >> some testing ports opened for a web server which I have totally >> closed now but when I chose option 10 (filter log) on pfSense I >> get all of this type of traffic (note that it was only 1 single >> IP and once I blocked that one it was like opening a can full of >> bees with all different IPs): >> >> >> >> tcpdump: WARNING: pflog0: no IPv4 address assigned >> tcpdump: verbose output suppressed, use -v or -vv for full >> protocol decode >> listening on pflog0, link-type PFLOG (OpenBSD pflog file), >> capture size 96 bytes >> 000000 rule 70/0(match): block in on vr1: 221.132.34.165.33556 > >> 69.90.78.53.52229: tcp 20 [bad hdr length 0 - too short, < 20] >> 6. 239658 rule 70/0(match): block in on vr1: 121.207.254.227.6667 >> > 69.90.78.38.3072: tcp 24 [bad hdr length 0 - too short, < 20] >> 7. 986724 rule 70/0(match): block in on vr1: 61.231.237.223.4155 >> > 69.90.78.62.445: tcp 28 [bad hdr length 0 - too short, < 20] >> 2. 867707 rule 70/0(match): block in on vr1: 61.231.237.223.4155 >> > 69.90.78.62.445: tcp 28 [bad hdr length 0 - too short, < 20] >> 2. 799337 rule 70/0(match): block in on vr1: 186.36.73.212.4545 > >> 69.90.78.56.445: tcp 28 [bad hdr length 0 - too short, < 20] >> 2. 931814 rule 70/0(match): block in on vr1: 186.36.73.212.4545 > >> 69.90.78.56.445: tcp 28 [bad hdr length 0 - too short, < 20] >> 1. 574556 rule 70/0(match): block in on vr1: 190.7.59.45.1341 > >> 69.90.78.43.445: tcp 28 [bad hdr length 0 - too short, < 20] >> 2. 956066 rule 70/0(match): block in on vr1: 190.7.59.45.1341 > >> 69.90.78.43.445: tcp 28 [bad hdr length 0 - too short, < 20] >> 1. 598334 rule 70/0(match): block in on vr1: 2.95.19.121.3463 > >> 69.90.78.42.445: tcp 20 [bad hdr length 8 - too short, < 20] >> 072759 rule 70/0(match): block in on vr1: 123.192.177.2.54518 > >> 69.90.78.43.445: tcp 20 [bad hdr length 8 - too short, < 20] >> 109451 rule 70/0(match): block in on vr1: 219.163.19.138.3723 > >> 69.90.78.63.445: tcp 28 [bad hdr length 0 - too short, < 20] >> 2. 731065 rule 70/0(match): block in on vr1: 2.95.19.121.3463 > >> 69.90.78.42.445: tcp 16 [bad hdr length 12 - too short, < 20] >> 159413 rule 70/0(match): block in on vr1: 123.192.177.2.54518 > >> 69.90.78.43.445: tcp 20 [bad hdr length 8 - too short, < 20] >> 374293 rule 70/0(match): block in on vr1: 219.163.19.138.3723 > >> 69.90.78.63.445: tcp 16 [bad hdr length 12 - too short, < 20] >> 10. 234202 rule 70/0(match): block in on vr1: 189.105.69.200.2413 >> > 69.90.78.52.445: tcp 20 [bad hdr length 12 - too short, < 20] >> 2. 985558 rule 70/0(match): block in on vr1: 189.105.69.200.2413 >> > 69.90.78.52.445: tcp 20 [bad hdr length 12 - too short, < 20] >> 13. 236084 rule 70/0(match): block in on vr1: 82.51.36.230.2923 > >> 69.90.78.35.445: tcp 16 [bad hdr length 12 - too short, < 20] >> 2. 982122 rule 70/0(match): block in on vr1: 82.51.36.230.2923 > >> 69.90.78.35.445: tcp 16 [bad hdr length 12 - too short, < 20] >> 18. 493312 rule 70/0(match): block in on vr1: 218.16.118.242.80 > >> 69.90.78.47.39781: tcp 16 [bad hdr length 12 - too short, < 20] >> 2. 477084 rule 70/0(match): block in on vr1: 218.16.118.242.80 > >> 69.90.78.47.39781: tcp 16 [bad hdr length 12 - too short, < 20] >> 9. 777792 rule 70/0(match): block in on vr1: 121.243.16.214.1677 >> > 69.90.78.54.445: tcp 16 [bad hdr length 12 - too short, < 20] >> 1. 216002 rule 70/0(match): block in on vr1: 172.168.0.4.1568 > >> 69.90.78.49.445: [|tcp] >> 321600 rule 70/0(match): block in on vr1: 72.179.18.165.2854 > >> 69.90.78.55.445: tcp 20 [bad hdr length 8 - too short, < 20] >> 1. 383839 rule 70/0(match): block in on vr1: 121.243.16.214.1677 >> > 69.90.78.54.445: [|tcp] >> 1. 466115 rule 70/0(match): block in on vr1: 72.179.18.165.2854 > >> 69.90.78.55.445: [|tcp] >> 7. 977140 rule 70/0(match): block in on vr1: 41.72.209.67.4532 > >> 69.90.78.36.445: [|tcp] >> 2. 920013 rule 70/0(match): block in on vr1: 41.72.209.67.4532 > >> 69.90.78.36.445: [|tcp] >> 29. 032839 rule 70/0(match): block in on vr1: 201.168.49.13.1404 >> > 69.90.78.55.445: [|tcp] >> 2. 996906 rule 70/0(match): block in on vr1: 201.168.49.13.1404 > >> 69.90.78.55.445: [|tcp] >> 62. 079279 rule 70/0(match): block in on vr1: 82.165.131.28.6005 >> > 69.90.78.47.1024: [|tcp] >> 34. 224871 rule 67/0(match): block in on vr1: 77.34.234.241.1899 >> > 69.90.78.43.445: [|tcp] >> 3. 006367 rule 67/0(match): block in on vr1: 77.34.234.241.1899 > >> 69.90.78.43.445: [|tcp] >> 20. 274886 rule 67/0(match): block in on vr1: 66.211.120.62.1132 >> > 69.90.78.55.445: [|tcp] >> 2. 893859 rule 67/0(match): block in on vr1: 66.211.120.62.1132 > >> 69.90.78.55.445: [|tcp] >> 28. 739620 rule 67/0(match): block in on vr1: >> 117.197.247.151.1042 > 69.90.78.55.445: [|tcp] >> 2. 936286 rule 67/0(match): block in on vr1: 117.197.247.151.1042 >> > 69.90.78.55.445: [|tcp] >> 1. 207250 rule 67/0(match): block in on vr1: >> 118.171.176.188.42965 > 69.90.78.43.445: [|tcp] >> 3. 015370 rule 67/0(match): block in on vr1: >> 118.171.176.188.42965 > 69.90.78.43.445: [|tcp] >> 7. 088359 rule 67/0(match): block in on vr1: 61.130.103.10 > >> 69.90.78.42 <http://69.90.78.42>: [|icmp] >> 11. 825521 rule 67/0(match): block in on vr1: 71.100.221.211.4521 >> > 69.90.78.33.445: [|tcp] >> 2. 316564 rule 67/0(match): block in on vr1: 61.130.103.10 > >> 69.90.78.42 <http://69.90.78.42>: [|icmp] >> 626845 rule 67/0(match): block in on vr1: 71.100.221.211.4521 > >> 69.90.78.33.445: tcp 20 [bad hdr length 8 - too short, < 20] >> 5. 041794 rule 67/0(match): block in on vr1: 95.224.51.107.1378 > >> 69.90.78.48.1434: UDP, length 376 >> 8. 978999 rule 67/0(match): block in on vr1: 221.132.34.165.33556 >> > 69.90.78.53.52229: [|tcp] >> 8. 067764 rule 67/0(match): block in on vr1: 117.22.229.187.2882 >> > 69.90.78.36.1434: UDP, length 376 >> 7. 936396 rule 67/0(match): block in on vr1: 117.211.83.182.1919 >> > 69.90.78.59.445: [|tcp] >> 2. 890145 rule 67/0(match): block in on vr1: 117.211.83.182.1919 >> > 69.90.78.59.445: [|tcp] >> 4. 611658 rule 67/0(match): block in on vr1: 61.32.84.165.2561 > >> 69.90.78.43.445: [|tcp] >> 007399 rule 67/0(match): block in on vr1: 69.39.235.5.5060 > >> 69.90.78.40.5060: SIP, length: 403 >> 2. 932101 rule 67/0(match): block in on vr1: 61.32.84.165.2561 > >> 69.90.78.43.445: [|tcp] >> 14. 157570 rule 67/0(match): block in on vr1: 83.239.20.74.3191 > >> 69.90.78.54.445: [|tcp] >> 2. 229645 rule 67/0(match): block in on vr1: 75.97.10.248.2556 > >> 69.90.78.54.445: [|tcp] >> 773124 rule 67/0(match): block in on vr1: 83.239.20.74.3191 > >> 69.90.78.54.445: [|tcp] >> 2. 102083 rule 67/0(match): block in on vr1: 75.97.10.248.2556 > >> 69.90.78.54.445: [|tcp] >> 6. 378646 rule 67/0(match): block in on vr1: 114.42.222.45.31689 >> > 69.90.78.39.445: [|tcp] >> 2. 950717 rule 67/0(match): block in on vr1: 114.42.222.45.31689 >> > 69.90.78.39.445: [|tcp] >> 6. 111112 rule 67/0(match): block in on vr1: 186.122.147.6.32221 >> > 69.90.78.45.445: [|tcp] >> 3. 608465 rule 67/0(match): block in on vr1: 186.122.147.6.32221 >> > 69.90.78.45.445: [|tcp] >> >> >> Thanks, >> > Always in cases like this find out what service might be > targeted. What's on tcp port 445? Microsoft-Directory Services > > Enough said. The script kiddies have a new tool to play with to > break into Microsoft based systems... > > Lyle > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > >
-- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users