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Add support for SRTP
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The goal is to have Zoom flows classified as "Encrypted" and not as
"Cleartext".

Start documenting the list of protocols supported by nDPI;
format, verbosity and content are still a work-in-progress.
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@IvanNardi
IvanNardi committed May 15, 2023
1 parent 8c224b4 commit 3aaf230
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2 changes: 1 addition & 1 deletion Makefile.am
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Expand Up @@ -12,7 +12,7 @@ EXTRA_DIST = README.md README.fuzzer.md CHANGELOG.md CONTRIBUTING.md \
autogen.sh wireshark windows utils packages \
influxdb/Makefile.in influxdb/metric_anomaly.c influxdb/README.txt \
rrdtool/Makefile.in rrdtool/README.txt rrdtool/rrd_anomaly.c rrdtool/rrd_similarity.c \
doc/requirements.txt doc/conf.py doc/flow_risks.rst doc/guide/nDPI_QuickStartGuide.pages \
doc/requirements.txt doc/conf.py doc/flow_risks.rst doc/protocols.rst doc/guide/nDPI_QuickStartGuide.pages \
doc/guide/nDPI_QuickStartGuide.pdf doc/img/logo.png doc/index.rst \
doc/Makefile doc/what_is_ndpi.rst \
python/DEV_GUIDE.md python/dev_requirements.txt python/ndpi_example.py python/ndpi/__init__.py \
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1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -82,6 +82,7 @@ The entire procedure of adding new protocols in detail:
8. From the `nDPI` root directory, `./autogen.sh --with-pcre` (nBPF and PCRE are usually optional, but they are needed to run/update *all* the unit tests)
9. `make`
10. `make check`
11. Update the documentation, adding this new protocol to `doc/protocols.rst`

### How to use nDPI to Block Selected Traffic

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1 change: 1 addition & 0 deletions doc/index.rst
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Expand Up @@ -14,6 +14,7 @@ nDPI is an open source DPI (Deep Packet Inspection) toolkit for traffic analysis
:caption: Developer's Guide

api/library_root
protocols
flow_risks

.. toctree::
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19 changes: 19 additions & 0 deletions doc/protocols.rst
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@@ -0,0 +1,19 @@
nDPI Protocols List
####################

This page provides the list of the protocols/applications supported by nDPI. For each protocol there is a brief description, some links to further, more detailed information and, optionally, some notes that might be useful when handling such a protocol (from the application/integrator point of view)

Work in progress!

.. _Proto 338:

`NDPI_PROTOCOL_SRTP`: SRTP (Secure Real-time Transport Protocol)
==============================================================
The Secure Real-time Transport Protocol (SRTP) is a profile for Real-time Transport Protocol (RTP) intended to provide encryption, message authentication, integrity, and replay attack protection to the RTP data.

References: `RFC3711 <https://datatracker.ietf.org/doc/html/rfc3711>`_.

Notes:

- You can think of SRTP simply as the "encrypted" version of RTP, something like HTTPS vs HTTP;
- It is not usually possible to tell RTP from SRTP. nDPI generally uses the former and it uses the latter only when it is really sure that the media stream has been encrypted.
1 change: 1 addition & 0 deletions src/include/ndpi_protocol_ids.h
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Expand Up @@ -366,6 +366,7 @@ typedef enum {
NDPI_PROTOCOL_OICQ = 335,
NDPI_PROTOCOL_HOTS = 336, /* Heroes of the Storm */
NDPI_PROTOCOL_FACEBOOK_REEL_STORY = 337,
NDPI_PROTOCOL_SRTP = 338,

#ifdef CUSTOM_NDPI_PROTOCOLS
#include "../../../nDPI-custom/custom_ndpi_protocol_ids.h"
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4 changes: 4 additions & 0 deletions src/lib/ndpi_main.c
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Expand Up @@ -2074,6 +2074,10 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
"Heroes_of_the_Storm", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_str, 0 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SRTP,
"SRTP", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);


#ifdef CUSTOM_NDPI_PROTOCOLS
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2 changes: 1 addition & 1 deletion src/lib/protocols/rtp.c
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Expand Up @@ -212,7 +212,7 @@ static void ndpi_rtp_search(struct ndpi_detection_module_struct *ndpi_struct,

ndpi_set_detected_protocol(ndpi_struct, flow,
NDPI_PROTOCOL_ZOOM,
NDPI_PROTOCOL_RTP,
NDPI_PROTOCOL_SRTP,
NDPI_CONFIDENCE_DPI);
return;
}
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4 changes: 2 additions & 2 deletions tests/cfgs/default/result/custom_rules_same-ip_multiple_ports.pcapng.out
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Expand Up @@ -23,5 +23,5 @@ Patricia protocols: 2/2 (search/found)
CustomProtocolA 3 222 1
CustomProtocolB 2 148 1

1 TCP 192.168.1.245:56866 -> 3.3.3.3:443 [proto: 91.344/TLS.CustomProtocolA][IP: 344/CustomProtocolA][Encrypted][Confidence: Unknown][DPI packets: 1][cat: Web/5][3 pkts/222 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][3.05 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
2 TCP 192.168.1.245:59682 -> 3.3.3.3:444 [proto: 345/CustomProtocolB][IP: 345/CustomProtocolB][ClearText][Confidence: Unknown][DPI packets: 1][2 pkts/148 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][1.02 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
1 TCP 192.168.1.245:56866 -> 3.3.3.3:443 [proto: 91.345/TLS.CustomProtocolA][IP: 345/CustomProtocolA][Encrypted][Confidence: Unknown][DPI packets: 1][cat: Web/5][3 pkts/222 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][3.05 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
2 TCP 192.168.1.245:59682 -> 3.3.3.3:444 [proto: 346/CustomProtocolB][IP: 346/CustomProtocolB][ClearText][Confidence: Unknown][DPI packets: 1][2 pkts/148 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][1.02 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
4 changes: 2 additions & 2 deletions tests/cfgs/default/result/synscan.pcap.out
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Expand Up @@ -124,7 +124,7 @@ iSCSI 2 116 2
44 TCP 172.16.0.8:36050 -> 64.13.134.52:2605 [proto: 13/BGP][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Network/14][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
45 TCP 172.16.0.8:36050 -> 64.13.134.52:3000 [proto: 26/ntop][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Network/14][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
46 TCP 172.16.0.8:36050 -> 64.13.134.52:3128 [proto: 131/HTTP_Proxy][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Web/5][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
47 TCP 172.16.0.8:36050 -> 64.13.134.52:3260 [proto: 338/iSCSI][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
47 TCP 172.16.0.8:36050 -> 64.13.134.52:3260 [proto: 339/iSCSI][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
48 TCP 172.16.0.8:36050 -> 64.13.134.52:3306 [proto: 20/MySQL][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Database/11][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
49 TCP 172.16.0.8:36050 -> 64.13.134.52:3389 [proto: 88/RDP][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: RemoteAccess/12][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Desktop/File Sharing **** Unidirectional Traffic **][Risk Score: 20][Risk Info: No server to client traffic / Found RDP][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
50 TCP 172.16.0.8:36050 -> 64.13.134.52:4343 [proto: 170/Whois-DAS][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Network/14][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
Expand Down Expand Up @@ -188,7 +188,7 @@ iSCSI 2 116 2
108 TCP 172.16.0.8:36051 -> 64.13.134.52:2605 [proto: 13/BGP][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Network/14][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
109 TCP 172.16.0.8:36051 -> 64.13.134.52:3000 [proto: 26/ntop][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Network/14][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
110 TCP 172.16.0.8:36051 -> 64.13.134.52:3128 [proto: 131/HTTP_Proxy][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Web/5][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
111 TCP 172.16.0.8:36051 -> 64.13.134.52:3260 [proto: 338/iSCSI][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
111 TCP 172.16.0.8:36051 -> 64.13.134.52:3260 [proto: 339/iSCSI][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
112 TCP 172.16.0.8:36051 -> 64.13.134.52:3306 [proto: 20/MySQL][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Database/11][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
113 TCP 172.16.0.8:36051 -> 64.13.134.52:3389 [proto: 88/RDP][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: RemoteAccess/12][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Desktop/File Sharing **** Unidirectional Traffic **][Risk Score: 20][Risk Info: No server to client traffic / Found RDP][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
114 TCP 172.16.0.8:36051 -> 64.13.134.52:4343 [proto: 170/Whois-DAS][IP: 0/Unknown][ClearText][Confidence: Match by port][DPI packets: 1][cat: Network/14][1 pkts/58 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
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6 changes: 3 additions & 3 deletions tests/cfgs/default/result/zoom2.pcap.out
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Expand Up @@ -30,8 +30,8 @@ JA3 Host Stats:
1 192.168.1.178 1


1 UDP 192.168.1.178:58117 <-> 144.195.73.154:8801 [proto: 87.189/RTP.Zoom][IP: 189/Zoom][ClearText][Confidence: DPI][DPI packets: 5][cat: Video/26][1283 pkts/302584 bytes <-> 947 pkts/159626 bytes][Goodput ratio: 82/75][39.98 sec][bytes ratio: 0.309 (Upload)][IAT c2s/s2c min/avg/max/stddev: 0/0 28/36 141/131 26/34][Pkt Len c2s/s2c min/avg/max/stddev: 106/60 236/169 376/369 87/64][PLAIN TEXT (replace)][Plen Bins: 0,1,64,18,7,0,0,4,3,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
2 UDP 192.168.1.178:60653 <-> 144.195.73.154:8801 [proto: 87.189/RTP.Zoom][IP: 189/Zoom][ClearText][Confidence: DPI][DPI packets: 5][cat: Video/26][43 pkts/41804 bytes <-> 128 pkts/129769 bytes][Goodput ratio: 96/96][1.32 sec][bytes ratio: -0.513 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 19/9 101/100 25/11][Pkt Len c2s/s2c min/avg/max/stddev: 165/60 972/1014 1078/1279 292/263][PLAIN TEXT (replace)][Plen Bins: 1,3,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,85,0,1,0,0,5,0,0,0,0,0,0,0,0,0,0]
3 UDP 192.168.1.178:57953 <-> 144.195.73.154:8801 [proto: 87.189/RTP.Zoom][IP: 189/Zoom][ClearText][Confidence: DPI][DPI packets: 5][cat: Video/26][43 pkts/5229 bytes <-> 44 pkts/4520 bytes][Goodput ratio: 65/59][39.68 sec][RTP Stream Type: screen_share][bytes ratio: 0.073 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 941/849 3580/3749 1440/1522][Pkt Len c2s/s2c min/avg/max/stddev: 69/60 122/103 185/133 41/28][PLAIN TEXT (replace)][Plen Bins: 35,2,43,13,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
1 UDP 192.168.1.178:58117 <-> 144.195.73.154:8801 [proto: 338.189/SRTP.Zoom][IP: 189/Zoom][Encrypted][Confidence: DPI][DPI packets: 5][cat: Video/26][1283 pkts/302584 bytes <-> 947 pkts/159626 bytes][Goodput ratio: 82/75][39.98 sec][bytes ratio: 0.309 (Upload)][IAT c2s/s2c min/avg/max/stddev: 0/0 28/36 141/131 26/34][Pkt Len c2s/s2c min/avg/max/stddev: 106/60 236/169 376/369 87/64][PLAIN TEXT (replace)][Plen Bins: 0,1,64,18,7,0,0,4,3,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
2 UDP 192.168.1.178:60653 <-> 144.195.73.154:8801 [proto: 338.189/SRTP.Zoom][IP: 189/Zoom][Encrypted][Confidence: DPI][DPI packets: 5][cat: Video/26][43 pkts/41804 bytes <-> 128 pkts/129769 bytes][Goodput ratio: 96/96][1.32 sec][bytes ratio: -0.513 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 19/9 101/100 25/11][Pkt Len c2s/s2c min/avg/max/stddev: 165/60 972/1014 1078/1279 292/263][PLAIN TEXT (replace)][Plen Bins: 1,3,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,85,0,1,0,0,5,0,0,0,0,0,0,0,0,0,0]
3 UDP 192.168.1.178:57953 <-> 144.195.73.154:8801 [proto: 338.189/SRTP.Zoom][IP: 189/Zoom][Encrypted][Confidence: DPI][DPI packets: 5][cat: Video/26][43 pkts/5229 bytes <-> 44 pkts/4520 bytes][Goodput ratio: 65/59][39.68 sec][bytes ratio: 0.073 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 941/849 3580/3749 1440/1522][Pkt Len c2s/s2c min/avg/max/stddev: 69/60 122/103 185/133 41/28][PLAIN TEXT (replace)][Plen Bins: 35,2,43,13,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
4 TCP 192.168.1.178:50076 <-> 144.195.73.154:443 [proto: 91.189/TLS.Zoom][IP: 189/Zoom][Encrypted][Confidence: DPI][DPI packets: 8][cat: Video/26][12 pkts/3043 bytes <-> 8 pkts/5520 bytes][Goodput ratio: 74/90][0.73 sec][Hostname/SNI: zoomsjccv154mmr.sjc.zoom.us][TLS Supported Versions: TLSv1.3;TLSv1.2;TLSv1.1;TLSv1][bytes ratio: -0.289 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 72/58 175/174 83/82][Pkt Len c2s/s2c min/avg/max/stddev: 66/66 254/690 1506/1506 404/622][Risk: ** TLS (probably) Not Carrying HTTPS **][Risk Score: 10][Risk Info: No ALPN][TLSv1.2][JA3C: 832952db10f1453442636675bed2702b][ServerNames: *.sjc.zoom.us][JA3S: 8aca82d60194883e764ab2743e60c380][Issuer: C=US, O=DigiCert Inc, CN=DigiCert TLS RSA SHA256 2020 CA1][Subject: C=US, ST=California, L=San Jose, O=Zoom Video Communications, Inc., CN=*.sjc.zoom.us][Certificate SHA-1: 43:42:0A:34:FD:F6:7A:FC:E9:C1:95:D8:E0:79:7E:17:B9:65:B0:A7][Firefox][Validity: 2021-04-13 00:00:00 - 2022-04-20 23:59:59][Cipher: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384][Plen Bins: 0,10,10,10,10,0,0,0,0,0,0,0,0,0,0,0,10,0,0,0,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,0,0,0,0,0,0,30,0,0]
5 ICMP 192.168.1.178:0 -> 144.195.73.154:0 [proto: 81/ICMP][IP: 189/Zoom][ClearText][Confidence: DPI][DPI packets: 1][cat: Network/14][6 pkts/420 bytes -> 0 pkts/0 bytes][Goodput ratio: 40/0][0.15 sec][bytes ratio: 1.000 (Upload)][IAT c2s/s2c min/avg/max/stddev: 19/0 30/0 73/0 21/0][Pkt Len c2s/s2c min/avg/max/stddev: 70/0 70/0 70/0 0/0][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]

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