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Add Beckhoff ADS protocol dissector #2181

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merged 4 commits into from
Nov 30, 2023
Merged

Add Beckhoff ADS protocol dissector #2181

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cec8c84
Add Beckhoff ADS protocol dissector
0xA50C1A1 Nov 28, 2023
f1274c7
Remove redundant le32toh
0xA50C1A1 Nov 28, 2023
581cf65
Merge branch 'dev' into new-dissector/beckhoff-ads
0xA50C1A1 Nov 30, 2023
9a7c1a6
Fix detection on big-endian architectures
0xA50C1A1 Nov 30, 2023
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9 changes: 9 additions & 0 deletions doc/protocols.rst
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Expand Up @@ -280,3 +280,12 @@ References: `Wireshark wiki: <https://wiki.wireshark.org/EtherSIO.md>`_.
UMAS is a proprietary Schneider Electric protocol based on Modbus. It's used in Modicon M580 and Modicon M340 CPU-based PLCs.

References: `Unofficial article: <https://ics-cert.kaspersky.com/publications/reports/2022/09/29/the-secrets-of-schneider-electrics-umas-protocol/>`_.


.. _Proto 365:

`NDPI_PROTOCOL_BECKHOFF_ADS`
============================
Automation Device Specification is the protocol used for interfacing with Beckhoff PLCs via TwinCAT.

References: `Protocol Specs: <https://infosys.beckhoff.com/english.php?content=../content/1033/tc3_ads_intro/115847307.html>`_.
1 change: 1 addition & 0 deletions src/include/ndpi_protocol_ids.h
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Expand Up @@ -393,6 +393,7 @@ typedef enum {
NDPI_PROTOCOL_FINS = 362,
NDPI_PROTOCOL_ETHERSIO = 363,
NDPI_PROTOCOL_UMAS = 364,
NDPI_PROTOCOL_BECKHOFF_ADS = 365,

#ifdef CUSTOM_NDPI_PROTOCOLS
#include "../../../nDPI-custom/custom_ndpi_protocol_ids.h"
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7 changes: 7 additions & 0 deletions src/lib/ndpi_main.c
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Expand Up @@ -2158,6 +2158,10 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
"UMAS", NDPI_PROTOCOL_CATEGORY_IOT_SCADA,
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, 1 /* cleartext */, 0 /* nw proto */, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_BECKHOFF_ADS,
"BeckhoffADS", NDPI_PROTOCOL_CATEGORY_IOT_SCADA,
ndpi_build_default_ports(ports_a, 48898, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);

#ifdef CUSTOM_NDPI_PROTOCOLS
#include "../../../nDPI-custom/custom_ndpi_main.c"
Expand Down Expand Up @@ -5606,6 +5610,9 @@ static int ndpi_callback_init(struct ndpi_detection_module_struct *ndpi_str) {
/* Ether-S-I/O */
init_ethersio_dissector(ndpi_str, &a);

/* Automation Device Specification */
init_beckhoff_ads_dissector(ndpi_str, &a);

#ifdef CUSTOM_NDPI_PROTOCOLS
#include "../../../nDPI-custom/custom_ndpi_main_init.c"
#endif
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1 change: 1 addition & 0 deletions src/lib/ndpi_private.h
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Expand Up @@ -624,6 +624,7 @@ void init_rtps_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int
void init_opc_ua_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
void init_fins_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
void init_ethersio_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);
void init_beckhoff_ads_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id);

#endif

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125 changes: 125 additions & 0 deletions src/lib/protocols/beckhoff_ads.c
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@@ -0,0 +1,125 @@
/*
* beckhoff_ads.c
*
* Beckhoff Automation Device Specification
*
* Copyright (C) 2023 - ntop.org
* Copyright (C) 2023 - V.G <[email protected]>
*
* This file is part of nDPI, an open source deep packet inspection
* library based on the OpenDPI and PACE technology by ipoque GmbH
*
* nDPI is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* nDPI is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with nDPI. If not, see <http://www.gnu.org/licenses/>.
*
*/

#include "ndpi_protocol_ids.h"

#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_BECKHOFF_ADS

#include "ndpi_api.h"
#include "ndpi_private.h"

PACK_ON
struct ams_tcp_hdr {
u_int16_t reserved;
u_int32_t length;
} PACK_OFF;

struct ams_hdr {
#if defined(__LITTLE_ENDIAN__)
u_int64_t target_netid : 48;
u_int64_t target_port : 16;
u_int64_t source_netid : 48;
u_int64_t source_port : 16;
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#elif defined(__BIG_ENDIAN__)
u_int64_t target_port : 16;
u_int64_t target_netid : 48;
u_int64_t source_port : 16;
u_int64_t source_netid : 48;
#else
#error "Missing endian macro definitions."
#endif
u_int16_t command_id;
u_int16_t state_flags;
u_int32_t length;
u_int32_t error_code;
u_int32_t invoke_id;
};

static void ndpi_int_beckhoff_ads_add_connection(struct ndpi_detection_module_struct * const ndpi_struct,
struct ndpi_flow_struct * const flow)
{
NDPI_LOG_INFO(ndpi_struct, "found Beckhoff ADS\n");
ndpi_set_detected_protocol(ndpi_struct, flow,
NDPI_PROTOCOL_BECKHOFF_ADS,
NDPI_PROTOCOL_UNKNOWN,
NDPI_CONFIDENCE_DPI);
}

static void ndpi_search_beckhoff_ads(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct const * const packet = &ndpi_struct->packet;

NDPI_LOG_DBG(ndpi_struct, "search Beckhoff ADS\n");

if (packet->payload_packet_len >= 38) {
struct ams_tcp_hdr const * const ams_tcp = (struct ams_tcp_hdr *)packet->payload;
u_int16_t ams_message_length = packet->payload_packet_len - sizeof(struct ams_tcp_hdr);

if ((ams_tcp->reserved != 0) ||
(le32toh(ams_tcp->length) != ams_message_length))
{
goto not_beckhoff_ads;
}

struct ams_hdr const * const ams = (struct ams_hdr *)&packet->payload[6];
u_int16_t ams_data_len = ams_message_length - sizeof(struct ams_hdr);

if (le32toh(ams->length) == ams_data_len) {
/* Just additional checks to avoid potential
* false positives */
if ((le16toh(ams->state_flags) != 0x0004) &&
(le16toh(ams->state_flags) != 0x0005))
{
goto not_beckhoff_ads;
}

if ((le16toh(ams->command_id) > 0x0009) ||
(le32toh(ams->error_code) > 0x0000001E))
{
goto not_beckhoff_ads;
}

ndpi_int_beckhoff_ads_add_connection(ndpi_struct, flow);
return;
}
}

not_beckhoff_ads:
NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
}

void init_beckhoff_ads_dissector(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t *id)
{
ndpi_set_bitmask_protocol_detection("BeckhoffADS", ndpi_struct, *id,
NDPI_PROTOCOL_BECKHOFF_ADS,
ndpi_search_beckhoff_ads,
NDPI_SELECTION_BITMASK_PROTOCOL_V4_V6_TCP_WITH_PAYLOAD_WITHOUT_RETRANSMISSION,
SAVE_DETECTION_BITMASK_AS_UNKNOWN,
ADD_TO_DETECTION_BITMASK);

*id += 1;
}
2 changes: 1 addition & 1 deletion tests/cfgs/caches_cfg/result/ookla.pcap.out
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Expand Up @@ -3,7 +3,7 @@ Guessed flow protos: 1
DPI Packets (TCP): 40 (6.67 pkts/flow)
Confidence Match by port : 1 (flows)
Confidence DPI : 5 (flows)
Num dissector calls: 515 (85.83 diss/flow)
Num dissector calls: 518 (86.33 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/3/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
Expand Down
2 changes: 1 addition & 1 deletion tests/cfgs/caches_cfg/result/teams.pcap.out
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Expand Up @@ -6,7 +6,7 @@ DPI Packets (other): 1 (1.00 pkts/flow)
Confidence Unknown : 1 (flows)
Confidence Match by port : 2 (flows)
Confidence DPI : 80 (flows)
Num dissector calls: 513 (6.18 diss/flow)
Num dissector calls: 514 (6.19 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/9/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
Expand Down
Binary file added tests/cfgs/default/pcap/beckhoff_ads.pcapng
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2 changes: 1 addition & 1 deletion tests/cfgs/default/result/1kxun.pcap.out
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Expand Up @@ -5,7 +5,7 @@ DPI Packets (UDP): 120 (1.21 pkts/flow)
Confidence Unknown : 14 (flows)
Confidence Match by port : 6 (flows)
Confidence DPI : 177 (flows)
Num dissector calls: 4587 (23.28 diss/flow)
Num dissector calls: 4590 (23.30 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/60/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
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2 changes: 1 addition & 1 deletion tests/cfgs/default/result/443-chrome.pcap.out
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Expand Up @@ -2,7 +2,7 @@ Guessed flow protos: 1

DPI Packets (TCP): 1 (1.00 pkts/flow)
Confidence Match by port : 1 (flows)
Num dissector calls: 126 (126.00 diss/flow)
Num dissector calls: 127 (127.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/3/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
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2 changes: 1 addition & 1 deletion tests/cfgs/default/result/443-opvn.pcap.out
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Expand Up @@ -2,7 +2,7 @@ Guessed flow protos: 0

DPI Packets (TCP): 6 (6.00 pkts/flow)
Confidence DPI : 1 (flows)
Num dissector calls: 127 (127.00 diss/flow)
Num dissector calls: 128 (128.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/0/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
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2 changes: 1 addition & 1 deletion tests/cfgs/default/result/KakaoTalk_chat.pcap.out
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Expand Up @@ -5,7 +5,7 @@ DPI Packets (UDP): 36 (2.00 pkts/flow)
DPI Packets (other): 1 (1.00 pkts/flow)
Confidence Match by port : 5 (flows)
Confidence DPI : 33 (flows)
Num dissector calls: 543 (14.29 diss/flow)
Num dissector calls: 545 (14.34 diss/flow)
LRU cache ookla: 0/1/0 (insert/search/found)
LRU cache bittorrent: 0/15/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
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2 changes: 1 addition & 1 deletion tests/cfgs/default/result/KakaoTalk_talk.pcap.out
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Expand Up @@ -5,7 +5,7 @@ DPI Packets (UDP): 10 (2.00 pkts/flow)
Confidence Match by port : 8 (flows)
Confidence DPI : 11 (flows)
Confidence Match by IP : 1 (flows)
Num dissector calls: 1116 (55.80 diss/flow)
Num dissector calls: 1120 (56.00 diss/flow)
LRU cache ookla: 0/2/0 (insert/search/found)
LRU cache bittorrent: 0/27/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
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2 changes: 1 addition & 1 deletion tests/cfgs/default/result/Oscar.pcap.out
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Expand Up @@ -2,7 +2,7 @@ Guessed flow protos: 1

DPI Packets (TCP): 21 (21.00 pkts/flow)
Confidence Match by port : 1 (flows)
Num dissector calls: 252 (252.00 diss/flow)
Num dissector calls: 253 (253.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/3/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
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2 changes: 1 addition & 1 deletion tests/cfgs/default/result/alexa-app.pcapng.out
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Expand Up @@ -5,7 +5,7 @@ DPI Packets (UDP): 64 (1.94 pkts/flow)
DPI Packets (other): 6 (1.00 pkts/flow)
Confidence Match by port : 14 (flows)
Confidence DPI : 146 (flows)
Num dissector calls: 502 (3.14 diss/flow)
Num dissector calls: 503 (3.14 diss/flow)
LRU cache ookla: 0/5/0 (insert/search/found)
LRU cache bittorrent: 0/42/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
Expand Down
2 changes: 1 addition & 1 deletion tests/cfgs/default/result/amqp.pcap.out
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Expand Up @@ -2,7 +2,7 @@ Guessed flow protos: 0

DPI Packets (TCP): 9 (3.00 pkts/flow)
Confidence DPI : 3 (flows)
Num dissector calls: 373 (124.33 diss/flow)
Num dissector calls: 374 (124.67 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/0/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
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2 changes: 1 addition & 1 deletion tests/cfgs/default/result/anyconnect-vpn.pcap.out
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Expand Up @@ -6,7 +6,7 @@ DPI Packets (other): 10 (1.00 pkts/flow)
Confidence Unknown : 2 (flows)
Confidence Match by port : 6 (flows)
Confidence DPI : 61 (flows)
Num dissector calls: 850 (12.32 diss/flow)
Num dissector calls: 851 (12.33 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/24/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
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28 changes: 28 additions & 0 deletions tests/cfgs/default/result/beckhoff_ads.pcapng.out
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@@ -0,0 +1,28 @@
Guessed flow protos: 0

DPI Packets (TCP): 4 (4.00 pkts/flow)
Confidence DPI : 1 (flows)
Num dissector calls: 1 (1.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/0/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
LRU cache stun: 0/0/0 (insert/search/found)
LRU cache tls_cert: 0/0/0 (insert/search/found)
LRU cache mining: 0/0/0 (insert/search/found)
LRU cache msteams: 0/0/0 (insert/search/found)
LRU cache stun_zoom: 0/0/0 (insert/search/found)
Automa host: 0/0 (search/found)
Automa domain: 0/0 (search/found)
Automa tls cert: 0/0 (search/found)
Automa risk mask: 0/0 (search/found)
Automa common alpns: 0/0 (search/found)
Patricia risk mask: 0/0 (search/found)
Patricia risk mask IPv6: 0/0 (search/found)
Patricia risk: 0/0 (search/found)
Patricia risk IPv6: 0/0 (search/found)
Patricia protocols: 2/0 (search/found)
Patricia protocols IPv6: 0/0 (search/found)

BeckhoffADS 50 6032 1

1 TCP 192.168.1.99:49201 <-> 192.168.1.8:48898 [proto: 365/BeckhoffADS][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 4][cat: IoT-Scada/31][26 pkts/2788 bytes <-> 24 pkts/3244 bytes][Goodput ratio: 49/60][26.29 sec][bytes ratio: -0.076 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 1250/1381 25613/25812 5448/5759][Pkt Len c2s/s2c min/avg/max/stddev: 54/60 107/135 150/762 31/139][PLAIN TEXT (Device 5 )][Plen Bins: 0,76,15,4,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
2 changes: 1 addition & 1 deletion tests/cfgs/default/result/bittorrent_tcp_miss.pcapng.out
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Expand Up @@ -2,7 +2,7 @@ Guessed flow protos: 0

DPI Packets (TCP): 10 (10.00 pkts/flow)
Confidence DPI : 1 (flows)
Num dissector calls: 227 (227.00 diss/flow)
Num dissector calls: 228 (228.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 5/0/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
Expand Down
2 changes: 1 addition & 1 deletion tests/cfgs/default/result/cassandra.pcap.out
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Expand Up @@ -2,7 +2,7 @@ Guessed flow protos: 0

DPI Packets (TCP): 16 (8.00 pkts/flow)
Confidence DPI : 2 (flows)
Num dissector calls: 306 (153.00 diss/flow)
Num dissector calls: 308 (154.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/0/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
Expand Down
2 changes: 1 addition & 1 deletion tests/cfgs/default/result/cloudflare-warp.pcap.out
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Expand Up @@ -4,7 +4,7 @@ DPI Packets (TCP): 41 (5.12 pkts/flow)
Confidence Match by port : 2 (flows)
Confidence DPI : 5 (flows)
Confidence Match by IP : 1 (flows)
Num dissector calls: 183 (22.88 diss/flow)
Num dissector calls: 184 (23.00 diss/flow)
LRU cache ookla: 0/0/0 (insert/search/found)
LRU cache bittorrent: 0/9/0 (insert/search/found)
LRU cache zoom: 0/0/0 (insert/search/found)
Expand Down
10 changes: 5 additions & 5 deletions tests/cfgs/default/result/custom_rules_ipv6.pcapng.out
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Expand Up @@ -29,8 +29,8 @@ CustomProtocolF 1 1287 1
CustomProtocolG 1 318 1
CustomProtocolH 1 318 1

1 UDP [247f:855b:5e16:3caf:3f2c:4134:9592:661b]:100 -> [21bc:b273:7f68:88d7:77a8:585:3990:927b]:1991 [proto: 375/CustomProtocolE][IP: 375/CustomProtocolE][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/1287 bytes -> 0 pkts/0 bytes][Goodput ratio: 95/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No client to server traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0]
2 UDP [247f:855b:5e16:3caf:3f2c:4134:9592:661b]:36098 -> [21bc:b273:7f68:88d7:77a8:585:3990:927b]:50621 [proto: 376/CustomProtocolF][IP: 376/CustomProtocolF][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/1287 bytes -> 0 pkts/0 bytes][Goodput ratio: 95/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0]
3 UDP [3ffe:507::1:200:86ff:fe05:80da]:21554 <-> [3ffe:501:4819::42]:5333 [proto: 374/CustomProtocolD][IP: 374/CustomProtocolD][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/90 bytes <-> 1 pkts/510 bytes][Goodput ratio: 31/88][0.07 sec][PLAIN TEXT (itojun)][Plen Bins: 50,0,0,0,0,0,0,0,0,0,0,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
4 UDP [fe80::76ac:b9ff:fe6c:c124]:12717 -> [ff02::1]:64315 [proto: 377/CustomProtocolG][IP: 377/CustomProtocolG][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/318 bytes -> 0 pkts/0 bytes][Goodput ratio: 80/0][< 1 sec][PLAIN TEXT (BZ.qca956)][Plen Bins: 0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
5 UDP [fe80::76ac:b9ff:fe6c:c124]:12718 -> [ff02::1]:26993 [proto: 378/CustomProtocolH][IP: 378/CustomProtocolH][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/318 bytes -> 0 pkts/0 bytes][Goodput ratio: 80/0][< 1 sec][PLAIN TEXT (BZ.qca956)][Plen Bins: 0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
1 UDP [247f:855b:5e16:3caf:3f2c:4134:9592:661b]:100 -> [21bc:b273:7f68:88d7:77a8:585:3990:927b]:1991 [proto: 376/CustomProtocolE][IP: 376/CustomProtocolE][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/1287 bytes -> 0 pkts/0 bytes][Goodput ratio: 95/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No client to server traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0]
2 UDP [247f:855b:5e16:3caf:3f2c:4134:9592:661b]:36098 -> [21bc:b273:7f68:88d7:77a8:585:3990:927b]:50621 [proto: 377/CustomProtocolF][IP: 377/CustomProtocolF][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/1287 bytes -> 0 pkts/0 bytes][Goodput ratio: 95/0][< 1 sec][Risk: ** Unidirectional Traffic **][Risk Score: 10][Risk Info: No server to client traffic][Plen Bins: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0]
3 UDP [3ffe:507::1:200:86ff:fe05:80da]:21554 <-> [3ffe:501:4819::42]:5333 [proto: 375/CustomProtocolD][IP: 375/CustomProtocolD][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/90 bytes <-> 1 pkts/510 bytes][Goodput ratio: 31/88][0.07 sec][PLAIN TEXT (itojun)][Plen Bins: 50,0,0,0,0,0,0,0,0,0,0,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
4 UDP [fe80::76ac:b9ff:fe6c:c124]:12717 -> [ff02::1]:64315 [proto: 378/CustomProtocolG][IP: 378/CustomProtocolG][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/318 bytes -> 0 pkts/0 bytes][Goodput ratio: 80/0][< 1 sec][PLAIN TEXT (BZ.qca956)][Plen Bins: 0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
5 UDP [fe80::76ac:b9ff:fe6c:c124]:12718 -> [ff02::1]:26993 [proto: 379/CustomProtocolH][IP: 379/CustomProtocolH][ClearText][Confidence: Unknown][DPI packets: 1][1 pkts/318 bytes -> 0 pkts/0 bytes][Goodput ratio: 80/0][< 1 sec][PLAIN TEXT (BZ.qca956)][Plen Bins: 0,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
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