Security Incidents mailing list archives

Port 111 Scans (odd single IP# probes too)


From: Bryan Andersen <bryan () visi com>
Date: Wed, 14 Mar 2001 01:43:03 -0600

Chris Schuler wrote:

anyone else seeing port 111/rpc scans from this ip?
211.185.160.193
Ive seen at least two walks of my ip address space by this host.

Mar 13 09:45:08 211.185.160.193:4671 -> xxx.xxx.xxx.xxx:111 SYN ******S*
Mar 13 09:45:08 211.185.160.193:4670 -> xxx.xxx.xxx.xxx:111 SYN ******S*
Mar 13 09:45:08 211.185.160.193:4672 -> xxx.xxx.xxx.xxx:111 SYN ******S*
...

No, but I have from a bunch of other IP#s.  It seams like
a lot of them lately.  This is just from Mar 5th till now.
I also find the number of single *.17 probes interesting.
For each of the single probes this was the only activity
seen from that */16 net with one exception that had web
activity for a different IP# on a different day.

Dates and times are US/Central, -500.  Output is tcpdump.

File tcp.2001-03-05_06:03:39.gz ------------------------
06:07:24.543582 210.0.140.2.2961 > *.16.111: S 1350150974:1350150974(0)
win 32120 <mss 1460,sackOK,timestamp 2439002 0,nop,wscale 0> (DF)
06:07:24.544879 210.0.140.2.2962 > *.17.111: S 1349617676:1349617676(0)
win 32120 <mss 1460,sackOK,timestamp 2439002 0,nop,wscale 0> (DF)
06:07:24.546376 210.0.140.2.2964 > *.19.111: S 1358368956:1358368956(0)
win 32120 <mss 1460,sackOK,timestamp 2439002 0,nop,wscale 0> (DF)

File tcp.2001-03-05_16:00:01.gz ------------------------
16:50:20.063618 57.66.15.3.2451 > *.17.111: S 692114147:692114147(0) win
32120 <mss 1460,sackOK,timestamp 65274700 0,nop,wscale 0> (DF)

File tcp.2001-03-05_20:00:01.gz ------------------------
20:56:08.357111 138.100.124.208.1527 > *.16.111: S
3604836085:3604836085(0) win 32120 <mss 1460,sackOK,timestamp 4950704
0,nop,wscale 0> (DF)
20:56:08.602220 138.100.124.208.1528 > *.17.111: S
3605504737:3605504737(0) win 32120 <mss 1460,sackOK,timestamp 4950704
0,nop,wscale 0> (DF)
20:56:08.609674 138.100.124.208.1530 > *.19.111: S
3605790791:3605790791(0) win 32120 <mss 1460,sackOK,timestamp 4950704
0,nop,wscale 0> (DF)
20:56:11.183019 138.100.124.208.1528 > *.17.111: S
3605504737:3605504737(0) win 32120 <mss 1460,sackOK,timestamp 4951004
0,nop,wscale 0> (DF)
20:56:11.184461 138.100.124.208.1530 > *.19.111: S
3605790791:3605790791(0) win 32120 <mss 1460,sackOK,timestamp 4951004
0,nop,wscale 0> (DF)
20:56:11.185647 138.100.124.208.1527 > *.16.111: S
3604836085:3604836085(0) win 32120 <mss 1460,sackOK,timestamp 4951004
0,nop,wscale 0> (DF)

File tcp.2001-03-06_11:00:01.gz ------------------------
11:52:17.543331 211.20.96.109.765 > *.16.111: S 2745833423:2745833423(0)
win 16060 <mss 1460,sackOK,timestamp 73530420 0,nop,wscale 0> (DF)
11:52:17.559887 211.20.96.109.766 > *.17.111: S 2751743162:2751743162(0)
win 16060 <mss 1460,sackOK,timestamp 73530423 0,nop,wscale 0> (DF)
11:52:17.587212 211.20.96.109.768 > *.19.111: S 2739880437:2739880437(0)
win 16060 <mss 1460,sackOK,timestamp 73530428 0,nop,wscale 0> (DF)
11:52:20.438161 211.20.96.109.765 > *.16.111: S 2745833423:2745833423(0)
win 16060 <mss 1460,sackOK,timestamp 73530720 0,nop,wscale 0> (DF)
11:52:20.448115 211.20.96.109.766 > *.17.111: S 2751743162:2751743162(0)
win 16060 <mss 1460,sackOK,timestamp 73530723 0,nop,wscale 0> (DF)
11:52:20.515802 211.20.96.109.768 > *.19.111: S 2739880437:2739880437(0)
win 16060 <mss 1460,sackOK,timestamp 73530728 0,nop,wscale 0> (DF)

File tcp.2001-03-06_18:00:20.gz ------------------------
18:12:51.287612 63.237.170.8.4001 > *.17.111: S 345196125:345196125(0)
win 32120 <mss 1460,sackOK,timestamp 8516589 0,nop,wscale 0> (DF)

File tcp.2001-03-06_20:00:47.gz ------------------------
20:21:29.548384 4.33.199.246.2413 > *.16.111: S 4257382697:4257382697(0)
win 32120 <mss 1460,sackOK,timestamp 52197010 0,nop,wscale 0> (DF)

File tcp.2001-03-06_22:00:16.gz ------------------------
22:09:15.144595 24.27.244.122.2415 > *.16.111: S
2142110321:2142110321(0) win 32120 <mss 1460,sackOK,timestamp 3231310
0,nop,wscale 0> (DF)
22:09:15.145898 24.27.244.122.2416 > *.17.111: S
2147217323:2147217323(0) win 32120 <mss 1460,sackOK,timestamp 3231310
0,nop,wscale 0> (DF)
22:09:15.147396 24.27.244.122.2418 > *.19.111: S
2153850690:2153850690(0) win 32120 <mss 1460,sackOK,timestamp 3231310
0,nop,wscale 0> (DF)
22:09:17.896265 24.27.244.122.2415 > *.16.111: S
2142110321:2142110321(0) win 32120 <mss 1460,sackOK,timestamp 3231610
0,nop,wscale 0> (DF)
22:09:17.897609 24.27.244.122.2416 > *.17.111: S
2147217323:2147217323(0) win 32120 <mss 1460,sackOK,timestamp 3231610
0,nop,wscale 0> (DF)
22:09:17.900415 24.27.244.122.2418 > *.19.111: S
2153850690:2153850690(0) win 32120 <mss 1460,sackOK,timestamp 3231610
0,nop,wscale 0> (DF)
22:09:23.768779 24.27.244.122.2415 > *.16.111: S
2142110321:2142110321(0) win 32120 <mss 1460,sackOK,timestamp 3232210
0,nop,wscale 0> (DF)
22:09:23.770119 24.27.244.122.2416 > *.17.111: S
2147217323:2147217323(0) win 32120 <mss 1460,sackOK,timestamp 3232210
0,nop,wscale 0> (DF)
22:09:23.805347 24.27.244.122.2418 > *.19.111: S
2153850690:2153850690(0) win 32120 <mss 1460,sackOK,timestamp 3232210
0,nop,wscale 0> (DF)

File tcp.2001-03-07_14:01:15.gz ------------------------
14:51:47.682161 211.174.179.233.2617 > *.16.111: S
1286938356:1286938356(0) win 32120 <mss 1460,sackOK,timestamp 144922346
0,nop,wscale 0> (DF)
14:51:47.683475 211.174.179.233.2618 > *.17.111: S
1279339279:1279339279(0) win 32120 <mss 1460,sackOK,timestamp 144922346
0,nop,wscale 0> (DF)
14:51:47.686269 211.174.179.233.2620 > *.19.111: S
1273981360:1273981360(0) win 32120 <mss 1460,sackOK,timestamp 144922346
0,nop,wscale 0> (DF)

File tcp.2001-03-08_03:00:03.gz ------------------------
03:18:17.650659 216.40.82.34.4008 > *.17.111: S 3244583708:3244583708(0)
win 32120 <mss 1460,sackOK,timestamp 23510927 0,nop,wscale 0> (DF)
03:18:17.652150 216.40.82.34.4010 > *.19.111: S 3236756659:3236756659(0)
win 32120 <mss 1460,sackOK,timestamp 23510927 0,nop,wscale 0> (DF)
03:18:19.562250 216.40.82.34.3814 > *.16.111: S 3237532592:3237532592(0)
win 32120 <mss 1460,sackOK,timestamp 23511117 0,nop,wscale 0> (DF)
03:18:20.670759 216.40.82.34.4008 > *.17.111: S 3244583708:3244583708(0)
win 32120 <mss 1460,sackOK,timestamp 23511227 0,nop,wscale 0> (DF)
03:18:20.672179 216.40.82.34.4010 > *.19.111: S 3236756659:3236756659(0)
win 32120 <mss 1460,sackOK,timestamp 23511227 0,nop,wscale 0> (DF)

File tcp.2001-03-08_08:03:01.gz ------------------------
08:32:51.419847 210.12.143.7.4888 > *.17.111: S 119650412:119650412(0)
win 32120 <mss 1460,sackOK,timestamp 10697278 0,nop,wscale 0> (DF)

File tcp.2001-03-09_22:00:02.gz ------------------------
22:39:17.163349 211.217.137.225.3625 > *.17.111: S
3388248271:3388248271(0) win 32120 <mss 1460,sackOK,timestamp 64704099
0,nop,wscale 0> (DF)

File tcp.2001-03-10_10:00:03.gz ------------------------
10:41:19.579963 202.69.83.4.4745 > *.17.111: S 3653009893:3653009893(0)
win 32120 <mss 1460,sackOK,timestamp 20633334 0,nop,wscale 0> (DF)
10:41:19.581437 202.69.83.4.4752 > *.19.111: S 3650648111:3650648111(0)
win 32120 <mss 1460,sackOK,timestamp 20633334 0,nop,wscale 0> (DF)
10:41:19.583899 202.69.83.4.4744 > *.16.111: S 3661270159:3661270159(0)
win 32120 <mss 1460,sackOK,timestamp 20633334 0,nop,wscale 0> (DF)
10:44:02.168577 208.59.211.26.1424 > *.16.111: S
2302414493:2302414493(0) win 32120 <mss 1460,sackOK,timestamp 7871503
0,nop,wscale 0> (DF)
10:44:02.171259 208.59.211.26.1425 > *.17.111: S
2310082611:2310082611(0) win 32120 <mss 1460,sackOK,timestamp 7871503
0,nop,wscale 0> (DF)
10:44:02.172700 208.59.211.26.1427 > *.19.111: S
2300000484:2300000484(0) win 32120 <mss 1460,sackOK,timestamp 7871503
0,nop,wscale 0> (DF)
10:44:05.162774 208.59.211.26.1424 > *.16.111: S
2302414493:2302414493(0) win 32120 <mss 1460,sackOK,timestamp 7871803
0,nop,wscale 0> (DF)
10:44:05.165449 208.59.211.26.1425 > *.17.111: S
2310082611:2310082611(0) win 32120 <mss 1460,sackOK,timestamp 7871803
0,nop,wscale 0> (DF)
10:44:05.166922 208.59.211.26.1427 > *.19.111: S
2300000484:2300000484(0) win 32120 <mss 1460,sackOK,timestamp 7871803
0,nop,wscale 0> (DF)

File tcp.2001-03-10_16:00:04.gz ------------------------
16:07:57.817698 195.153.143.19.3402 > *.19.111: S
1688294726:1688294726(0) win 32120 <mss 1460,sackOK,timestamp 21475244
0,nop,wscale 0> (DF)
16:07:57.827483 195.153.143.19.3400 > *.17.111: S
1696172852:1696172852(0) win 32120 <mss 1460,sackOK,timestamp 21475244
0,nop,wscale 0> (DF)
16:07:57.834149 195.153.143.19.3399 > *.16.111: S
1696129009:1696129009(0) win 32120 <mss 1460,sackOK,timestamp 21475244
0,nop,wscale 0> (DF)

File tcp.2001-03-13_09:00:04.gz ------------------------
09:44:32.709245 129.142.170.149.2051 > *.17.111: S
1252476865:1252476865(0) win 32120 <mss 1460,sackOK,timestamp 6967404
0,nop,wscale 0> (DF)

File tcp.2001-03-13_16:00:40.gz ------------------------
16:24:57.727282 216.29.28.46.3339 > *.17.111: S 3529363346:3529363346(0)
win 32120 <mss 1460,sackOK,timestamp 115469605 0,nop,wscale 0> (DF)

File tcp.2001-03-13_18:00:51.gz ------------------------
18:25:42.561471 210.178.22.129.3353 > *.16.111: S
1232149209:1232149209(0) win 32120 <mss 1460,sackOK,timestamp 51103188
0,nop,wscale 0> (DF)
18:25:42.564074 210.178.22.129.3354 > *.17.111: S
1236301047:1236301047(0) win 32120 <mss 1460,sackOK,timestamp 51103188
0,nop,wscale 0> (DF)
18:25:42.565577 210.178.22.129.3356 > *.19.111: S
1225194465:1225194465(0) win 32120 <mss 1460,sackOK,timestamp 51103188
0,nop,wscale 0> (DF)
18:25:45.537391 210.178.22.129.3353 > *.16.111: S
1232149209:1232149209(0) win 32120 <mss 1460,sackOK,timestamp 51103488
0,nop,wscale 0> (DF)
18:25:45.538729 210.178.22.129.3354 > *.17.111: S
1236301047:1236301047(0) win 32120 <mss 1460,sackOK,timestamp 51103488
0,nop,wscale 0> (DF)
18:25:45.541507 210.178.22.129.3356 > *.19.111: S
1225194465:1225194465(0) win 32120 <mss 1460,sackOK,timestamp 51103488
0,nop,wscale 0> (DF)


--
|  Bryan Andersen   |   bryan () visi com   |   http://softail.visi.com   |
| Buzzwords are like annoying little flies that deserve to be swatted. |
|   -Bryan Andersen                                                    |


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