Snort mailing list archives

Help! OpenAPPid not detecting apps


From: Fernando Pérez Cabrera <fernando.perez () datys cu>
Date: Mon, 8 May 2017 14:43:59 +0000

Good day to all! I'm using Snort 2.9.9 on a Ubuntu 16.04. To test its correct behavior, I have it running with no rules 
(except the test rule). I have installed it with openappid support. As I understand, barnyard2 does NOT support 
openappid metadata in snort logs, so I don't have it running right now (please correct me if I'm wrong). I'm testing 
with Wikipedia but it happens with any other web page (google.com, facebook, reddit, etc...).

This is my test rule:

Ø  alert tcp  any any <> any any (msg:"wikipedia"; appid: wikipedia; sid:10000002; rev:001; classtype:unknown; GID:1;)
This is my sid-msg.map

Ø  1 || 10000002 || 001 || unknown || 0 || Wikipedia Access

When I use Firefox to enter Wikipedia, I see that snort is correctly logging the packets but is referring to them as 
appid:HTTP. Why is it not recognizing Wikipedia? (or any other site for that matter). And of course no alert is logged 
because it doesn't detect appid: Wikipedia;

(Event)
        sensor id: 0    event id: 1     event second: 1494254051        event microsecond: 454104
        sig id: 18759   gen id: 1       revision: 4      classification: 2
        priority: 3     ip source: x.x.x.x  ip destination: x.x.x.x
        src port: 57312 dest port: 8080 protocol: 6     impact_flag: 0  blocked: 0
        mpls label: 0   vland id: 0     policy id: 0    appid: HTTP

Packet
        sensor id: 0    event id: 1     event second: 1494254051
        packet second: 1494254051       packet microsecond: 454104
        linktype: 1     packet_length: 269

[    0] 00 00 5E 00 01 01 00 71 C2 21 BD BC 08 00 45 00  ..^....q.!....E.
[   16] 00 FF 46 C7 00 00 80 06 87 9B AC 15 00 11 C0 A8  ..F.............
[   32] FE C7 DF E0 1F 90 C7 BC 26 EB 35 7C BB EC 50 18  ........&.5|..P.
[   48] 01 00 3C 46 00 00 43 4F 4E 4E 45 43 54 20 65 6E  ..<F..CONNECT en
[   64] 2E 77 69 6B 69 70 65 64 69 61 2E 6F 72 67 3A 34  .wikipedia.org:4
[   80] 34 33 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65  43 HTTP/1.1..Use
[   96] 72 2D 41 67 65 6E 74 3A 20 4D 6F 7A 69 6C 6C 61  r-Agent: Mozilla
[  112] 2F 35 2E 30 20 28 57 69 6E 64 6F 77 73 20 4E 54  /5.0 (Windows NT
[  128] 20 31 30 2E 30 3B 20 57 69 6E 36 34 3B 20 78 36 10.0; Win64; x6
[  144] 34 3B 20 72 76 3A 35 32 2E 30 29 20 47 65 63 6B  4; rv:52.0) Geck
[  160] 6F 2F 32 30 31 30 30 31 30 31 20 46 69 72 65 66  o/20100101 Firef
[  176] 6F 78 2F 35 32 2E 30 0D 0A 50 72 6F 78 79 2D 43  ox/52.0..Proxy-C
[  192] 6F 6E 6E 65 63 74 69 6F 6E 3A 20 6B 65 65 70 2D  onnection: keep-
[  208] 61 6C 69 76 65 0D 0A 43 6F 6E 6E 65 63 74 69 6F  alive..Connectio
[  224] 6E 3A 20 6B 65 65 70 2D 61 6C 69 76 65 0D 0A 48  n: keep-alive..H
[  240] 6F 73 74 3A 20 65 6E 2E 77 69 6B 69 70 65 64 69  ost: en.wikipedi
[  256] 61 2E 6F 72 67 3A 34 34 33 0D 0A 0D 0A           a.org:443....

(ExtraDataHdr)
        event type: 4   event length: 52

(ExtraData)
        sensor id: 0    event id: 1     event second: 1494254051
        type: 9 datatype: 1     bloblength: 28  HTTP URI: en.wikipedia.org:443

(ExtraDataHdr)
        event type: 4   event length: 52

(ExtraData)
        sensor id: 0    event id: 1     event second: 1494254051
        type: 10        datatype: 1     bloblength: 28  HTTP Hostname: en.wikipedia.org:443

As you can see, it just displays appid:HTTP as if it could not read the header or parse the packed data? Someone please 
help!
Best regards to all!
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Snort-users mailing list
Snort-users () lists sourceforge net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/listinfo/snort-users
Snort-users list archive:
http://sourceforge.net/mailarchive/forum.php?forum_name=snort-users

Please visit http://blog.snort.org to stay current on all the latest Snort news!


Current thread: