2017-01-03-0221Z


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OK, so I'm seeing some UDP traffic, but not nearly enough to account for video uploads:

03:23:29.885091 IP 192.168.13.102.51880 > 101.1.17.22.51880: UDP, length 44
	0x0000:  4500 0048 0000 4000 4011 f67f c0a8 0d66  E..H..@.@......f
	0x0010:  6501 1116 caa8 caa8 0034 0a5c 0107 caa8  e........4.\....
	0x0020:  c0a8 0d66 bd79 0a00 7271 c9ef 2f62 8027  ...f.y..rq../b.'
	0x0030:  6849 8cb1 769d be04 0000 0000 0900 0000  hI..v...........
	0x0040:  542f 85bf 9303 2f00                      T/..../.
03:23:29.887982 IP 192.168.13.102.51880 > 218.30.35.92.51880: UDP, length 44
	0x0000:  4500 0048 0000 4000 4011 6f1c c0a8 0d66  E..H..@.@.o....f
	0x0010:  da1e 235c caa8 caa8 0034 82f8 0107 caa8  ..#\.....4......
	0x0020:  c0a8 0d66 bd79 0a00 7271 c9ef 2f62 8027  ...f.y..rq../b.'
	0x0030:  6849 8cb1 769d be04 0000 0000 0900 0000  hI..v...........
	0x0040:  542f 85bf 9303 2f00                      T/..../.
03:23:29.888179 IP 192.168.13.102.51880 > 220.231.142.137.51880: UDP, length 44
	0x0000:  4500 0048 0000 4000 4011 0126 c0a8 0d66  E..H..@.@..&...f
	0x0010:  dce7 8e89 caa8 caa8 0034 1502 0107 caa8  .........4......
	0x0020:  c0a8 0d66 bd79 0a00 7271 c9ef 2f62 8027  ...f.y..rq../b.'
	0x0030:  6849 8cb1 769d be04 0000 0000 0900 0000  hI..v...........
	0x0040:  542f 85bf 9303 2f00                      T/..../.
03:23:29.888361 IP 192.168.13.102.51880 > 146.0.227.241.51880: UDP, length 44
	0x0000:  4500 0048 0000 4000 4011 f6a4 c0a8 0d66  E..H..@.@......f
	0x0010:  9200 e3f1 caa8 caa8 0034 0a81 0107 caa8  .........4......
	0x0020:  c0a8 0d66 bd79 0a00 7271 c9ef 2f62 8027  ...f.y..rq../b.'
	0x0030:  6849 8cb1 769d be04 0000 0000 0900 0000  hI..v...........
	0x0040:  542f 85bf 9303 2f00                      T/..../.
03:23:29.960728 IP 218.30.35.92.51880 > 192.168.13.102.51880: UDP, length 44
	0x0000:  4500 0048 6dcd 4000 7711 ca4e da1e 235c  E..Hm.@.w..N..#\
	0x0010:  c0a8 0d66 caa8 caa8 0034 ebf9 0207 caa8  ...f.....4......
	0x0020:  0000 0000 bd79 0a00 7271 c9ef 2f62 8027  .....y..rq../b.'
	0x0030:  6849 8cb1 769d be04 0000 0000 0900 0000  hI..v...........
	0x0040:  0000 0000 0000 0000                      ........
03:23:30.100237 IP 146.0.227.241.51880 > 192.168.13.102.51880: UDP, length 44
	0x0000:  4500 0048 2f89 4000 7411 931b 9200 e3f1  E..H/.@.t.......
	0x0010:  c0a8 0d66 caa8 caa8 0034 7382 0207 caa8  ...f.....4s.....
	0x0020:  0000 0000 bd79 0a00 7271 c9ef 2f62 8027  .....y..rq../b.'
	0x0030:  6849 8cb1 769d be04 0000 0000 0900 0000  hI..v...........
	0x0040:  0000 0000 0000 0000                      ........
03:23:30.171686 IP 101.1.17.22.51880 > 192.168.13.102.51880: UDP, length 44
	0x0000:  4500 0048 1396 4000 7511 ade9 6501 1116  E..H..@.u...e...
	0x0010:  c0a8 0d66 caa8 caa8 0034 735d 0207 caa8  ...f.....4s]....
	0x0020:  0000 0000 bd79 0a00 7271 c9ef 2f62 8027  .....y..rq../b.'
	0x0030:  6849 8cb1 769d be04 0000 0000 0900 0000  hI..v...........
	0x0040:  0000 0000 0000 0000                      ........
03:23:30.878257 IP 192.168.13.102.51880 > 101.1.17.22.51880: UDP, length 44
	0x0000:  4500 0048 0000 4000 4011 f67f c0a8 0d66  E..H..@.@......f
	0x0010:  6501 1116 caa8 caa8 0034 a90a 0107 caa8  e........4......
	0x0020:  c0a8 0d66 bd79 0a00 8966 00a1 e65c a176  ...f.y...f...\.v
	0x0030:  a177 ade0 57a1 be04 0000 0000 0900 0000  .w..W...........
	0x0040:  542f 85bf 9303 2f00                      T/..../.
03:23:30.878457 IP 192.168.13.102.51880 > 218.30.35.92.51880: UDP, length 44
	0x0000:  4500 0048 0000 4000 4011 6f1c c0a8 0d66  E..H..@.@.o....f
	0x0010:  da1e 235c caa8 caa8 0034 21a7 0107 caa8  ..#\.....4!.....
	0x0020:  c0a8 0d66 bd79 0a00 8966 00a1 e65c a176  ...f.y...f...\.v
	0x0030:  a177 ade0 57a1 be04 0000 0000 0900 0000  .w..W...........
	0x0040:  542f 85bf 9303 2f00                      T/..../.
03:23:30.879865 IP 192.168.13.102.51880 > 220.231.142.137.51880: UDP, length 44
	0x0000:  4500 0048 0000 4000 4011 0126 c0a8 0d66  E..H..@.@..&...f
	0x0010:  dce7 8e89 caa8 caa8 0034 b3b0 0107 caa8  .........4......
	0x0020:  c0a8 0d66 bd79 0a00 8966 00a1 e65c a176  ...f.y...f...\.v
	0x0030:  a177 ade0 57a1 be04 0000 0000 0900 0000  .w..W...........
	0x0040:  542f 85bf 9303 2f00                      T/..../.
03:23:30.880060 IP 192.168.13.102.51880 > 146.0.227.241.51880: UDP, length 44
	0x0000:  4500 0048 0000 4000 4011 f6a4 c0a8 0d66  E..H..@.@......f
	0x0010:  9200 e3f1 caa8 caa8 0034 a92f 0107 caa8  .........4./....
	0x0020:  c0a8 0d66 bd79 0a00 8966 00a1 e65c a176  ...f.y...f...\.v
	0x0030:  a177 ade0 57a1 be04 0000 0000 0900 0000  .w..W...........
	0x0040:  542f 85bf 9303 2f00                      T/..../.
03:23:30.952986 IP 218.30.35.92.51880 > 192.168.13.102.51880: UDP, length 44
	0x0000:  4500 0048 7f74 4000 7711 b8a7 da1e 235c  E..H.t@.w.....#\
	0x0010:  c0a8 0d66 caa8 caa8 0034 8aa8 0207 caa8  ...f.....4......
	0x0020:  0000 0000 bd79 0a00 8966 00a1 e65c a176  .....y...f...\.v
	0x0030:  a177 ade0 57a1 be04 0000 0000 0900 0000  .w..W...........
	0x0040:  0000 0000 0000 0000                      ........
03:23:31.095703 IP 146.0.227.241.51880 > 192.168.13.102.51880: UDP, length 44
	0x0000:  4500 0048 4492 4000 7411 7e12 9200 e3f1  E..HD.@.t.~.....
	0x0010:  c0a8 0d66 caa8 caa8 0034 1231 0207 caa8  ...f.....4.1....
	0x0020:  0000 0000 bd79 0a00 8966 00a1 e65c a176  .....y...f...\.v
	0x0030:  a177 ade0 57a1 be04 0000 0000 0900 0000  .w..W...........
	0x0040:  0000 0000 0000 0000                      ........
03:23:31.156689 IP 101.1.17.22.51880 > 192.168.13.102.51880: UDP, length 44
	0x0000:  4500 0048 1faf 4000 7511 a1d0 6501 1116  E..H..@.u...e...
	0x0010:  c0a8 0d66 caa8 caa8 0034 120c 0207 caa8  ...f.....4......
	0x0020:  0000 0000 bd79 0a00 8966 00a1 e65c a176  .....y...f...\.v
	0x0030:  a177 ade0 57a1 be04 0000 0000 0900 0000  .w..W...........
	0x0040:  0000 0000 0000 0000

the IP addresses are all registered to Chinese entities. two were APNIC and one was RIPE.

jcomeau@aspire:~$ whois 218.30.35.92
% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '218.30.32.0 - 218.30.55.255'

inetnum: 218.30.32.0 - 218.30.55.255 netname: CHINANET-US-POP descr: Chinanet POP in American descr: 201 S. Lake Ave. Suite 604, Pasadena, CA 91101 country: CN admin-c: CH93-AP tech-c: CH93-AP mnt-by: MAINT-CHINANET changed: hostmaster@ns.chinanet.cn.net 20020221 status: ALLOCATED NON-PORTABLE source: APNIC

so it looks like all I need to do is block outgoing port 51880 to stop it, unless it has a sneaky backup mechanism (such as disguising the uploads as DNS queries or something).

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last updated 2017-01-02 21:31:42. served from tektonic