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Fixed probing attempt risk that was creating false positives
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@lucaderi
lucaderi committed Aug 7, 2024
1 parent 653175e commit fc4fb4d
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Showing 211 changed files with 3,841 additions and 3,850 deletions.
31 changes: 11 additions & 20 deletions src/lib/ndpi_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7694,11 +7694,17 @@ static void ndpi_check_tcp_flags(struct ndpi_flow_struct *flow) {
/* ******************************************************************** */

static void ndpi_check_probing_attempt(struct ndpi_flow_struct *flow) {
if(flow->l4_proto == IPPROTO_TCP) {
/* TODO: check UDP traffic too */

if((flow->l4_proto == IPPROTO_TCP)
&& (flow->l4.tcp.cli2srv_tcp_flags & TH_PUSH)
&& (flow->l4.tcp.srv2cli_tcp_flags & TH_PUSH)) {
if(flow->packet_direction_with_payload_observed[0]
&& flow->packet_direction_with_payload_observed[1]) {
/* Both directions observed */

/* Nothing to do */
} else {
/* Skipping rules where an early match might be confused with a probing attempt */
if(flow->confidence == NDPI_CONFIDENCE_DPI) {
switch(flow->detected_protocol_stack[0]) {
case NDPI_PROTOCOL_SSH:
Expand All @@ -7707,31 +7713,16 @@ static void ndpi_check_probing_attempt(struct ndpi_flow_struct *flow) {
break;

case NDPI_PROTOCOL_TLS:
case NDPI_PROTOCOL_QUIC:
/* case NDPI_PROTOCOL_QUIC: */
case NDPI_PROTOCOL_MAIL_SMTPS:
case NDPI_PROTOCOL_MAIL_POPS:
case NDPI_PROTOCOL_MAIL_IMAPS:
case NDPI_PROTOCOL_DTLS:
if(flow->host_server_name[0] == '\0')
ndpi_set_risk(flow, NDPI_PROBING_ATTEMPT, "TLS/QUIC Probing");
ndpi_set_risk(flow, NDPI_PROBING_ATTEMPT, "TLS Probing");
break;
}
}
} else {
switch(flow->confidence) {
case NDPI_CONFIDENCE_MATCH_BY_PORT:
case NDPI_CONFIDENCE_NBPF:
case NDPI_CONFIDENCE_DPI_PARTIAL_CACHE:
case NDPI_CONFIDENCE_DPI_CACHE:
case NDPI_CONFIDENCE_MATCH_BY_IP:
case NDPI_CONFIDENCE_CUSTOM_RULE:
/* Skipping rules where an early match might be confused with a probing attempt */
break;

default:
ndpi_set_risk(flow, NDPI_PROBING_ATTEMPT,
"TCP connection with unidirectional traffic");
}
}
}
}
}
Expand Down
6 changes: 3 additions & 3 deletions tests/cfgs/caches_cfg/result/teams.pcap.out
View file
Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,7 @@ JA3 Host Stats:
27 TCP 192.168.1.6:60564 <-> 40.79.138.41:443 [proto: 91/TLS][IP: 276/Azure][Encrypted][Confidence: DPI][FPC: 212/Microsoft, Confidence: DNS][DPI packets: 5][cat: Web/5][12 pkts/2159 bytes <-> 9 pkts/8211 bytes][Goodput ratio: 62/93][0.17 sec][Hostname/SNI: gate.hockeyapp.net][(Advertised) ALPNs: h2;h2-16;h2-15;h2-14;spdy/3.1;spdy/3;http/1.1][bytes ratio: -0.584 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 12/20 33/42 14/18][Pkt Len c2s/s2c min/avg/max/stddev: 66/66 180/912 599/1506 176/631][TLSv1.2][JA3C: a69708a64f853c3bcc214c2c5faf84f3][JA4: t12d2010h2_2a284e3b0c56_f05fdf8c38a9][Safari][Plen Bins: 0,0,0,9,0,9,0,9,0,0,0,0,9,0,0,0,9,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,9,0,0,0,0,0,0,0,36,0,0]
28 TCP 192.168.1.6:60551 <-> 52.114.15.45:443 [proto: 91.250/TLS.Teams][IP: 276/Azure][Encrypted][Confidence: DPI][FPC: 250/Teams, Confidence: DNS][DPI packets: 11][cat: Collaborative/15][13 pkts/2426 bytes <-> 11 pkts/7772 bytes][Goodput ratio: 70/92][0.88 sec][Hostname/SNI: trouter2-asse-a.trouter.teams.microsoft.com][bytes ratio: -0.524 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 70/90 207/235 82/92][Pkt Len c2s/s2c min/avg/max/stddev: 54/60 187/707 1393/1506 353/636][Risk: ** TLS (probably) Not Carrying HTTPS **][Risk Score: 10][Risk Info: No ALPN][TLSv1.2][JA3C: e4d448cdfe06dc1243c1eb026c74ac9a][JA4: t12d220700_0d4ca5d4ec72_3304d8368043][ServerNames: *.trouter.teams.microsoft.com,go.trouter.io,*.drip.trouter.io,*.dc.trouter.io][JA3S: 986571066668055ae9481cb84fda634a][Issuer: C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, OU=Microsoft IT, CN=Microsoft IT TLS CA 2][Subject: CN=*.trouter.teams.microsoft.com][Certificate SHA-1: DD:24:DF:0E:F3:63:CC:10:B5:03:CF:34:EB:A5:14:8B:97:90:9B:D4][Firefox][Validity: 2019-11-29 17:57:58 - 2021-11-29 17:57:58][Cipher: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384][Plen Bins: 0,24,0,7,7,0,7,0,0,0,0,0,7,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,31,0,0]
29 TCP 192.168.1.6:60534 <-> 40.126.9.5:443 [proto: 91.219/TLS.Microsoft365][IP: 219/Microsoft365][Encrypted][Confidence: DPI][FPC: 219/Microsoft365, Confidence: IP address][DPI packets: 5][cat: Collaborative/15][15 pkts/2846 bytes <-> 10 pkts/7289 bytes][Goodput ratio: 64/91][0.20 sec][Hostname/SNI: login.microsoftonline.com][(Advertised) ALPNs: h2;h2-16;h2-15;h2-14;spdy/3.1;spdy/3;http/1.1][bytes ratio: -0.438 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 15/21 41/53 16/22][Pkt Len c2s/s2c min/avg/max/stddev: 66/66 190/729 1471/1506 349/665][TLSv1.2][JA3C: a69708a64f853c3bcc214c2c5faf84f3][JA4: t12d2010h2_2a284e3b0c56_f05fdf8c38a9][Safari][Plen Bins: 9,9,0,18,0,0,0,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,9,0,36,0,0]
30 TCP 162.125.19.131:443 <-> 192.168.1.6:60344 [proto: 91/TLS][IP: 121/Dropbox][Encrypted][Confidence: DPI][FPC: 91/TLS, Confidence: DPI][DPI packets: 3][cat: Web/5][8 pkts/761 bytes <-> 8 pkts/9347 bytes][Goodput ratio: 31/94][0.12 sec][bytes ratio: -0.849 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 18/1 111/4 41/1][Pkt Len c2s/s2c min/avg/max/stddev: 66/66 95/1168 299/1494 77/500][Risk: ** Probing attempt **][Risk Score: 50][Risk Info: TLS/QUIC Probing][Plen Bins: 0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,63,0,0,0]
30 TCP 162.125.19.131:443 <-> 192.168.1.6:60344 [proto: 91/TLS][IP: 121/Dropbox][Encrypted][Confidence: DPI][FPC: 91/TLS, Confidence: DPI][DPI packets: 3][cat: Web/5][8 pkts/761 bytes <-> 8 pkts/9347 bytes][Goodput ratio: 31/94][0.12 sec][bytes ratio: -0.849 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 18/1 111/4 41/1][Pkt Len c2s/s2c min/avg/max/stddev: 66/66 95/1168 299/1494 77/500][Plen Bins: 0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,63,0,0,0]
31 TCP 192.168.1.6:60567 <-> 52.114.77.136:443 [proto: 91.250/TLS.Teams][IP: 276/Azure][Encrypted][Confidence: DPI][FPC: 250/Teams, Confidence: DNS][DPI packets: 5][cat: Collaborative/15][13 pkts/2389 bytes <-> 11 pkts/7293 bytes][Goodput ratio: 69/91][1.77 sec][Hostname/SNI: api.flightproxy.teams.microsoft.com][bytes ratio: -0.507 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 25/50 84/122 28/46][Pkt Len c2s/s2c min/avg/max/stddev: 54/60 184/663 703/1506 228/665][Risk: ** TLS (probably) Not Carrying HTTPS **][Risk Score: 10][Risk Info: No ALPN][TLSv1.2][JA3C: e4d448cdfe06dc1243c1eb026c74ac9a][JA4: t12d220700_0d4ca5d4ec72_3304d8368043][Firefox][Plen Bins: 0,16,0,16,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,16,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,34,0,0]
32 TCP 192.168.1.6:60557 <-> 52.113.194.132:443 [proto: 91.250/TLS.Teams][IP: 125/Skype_Teams][Encrypted][Confidence: DPI][FPC: 250/Teams, Confidence: DNS][DPI packets: 12][cat: Collaborative/15][12 pkts/2422 bytes <-> 13 pkts/7118 bytes][Goodput ratio: 72/90][0.17 sec][Hostname/SNI: teams.microsoft.com][bytes ratio: -0.492 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 17/14 91/79 27/23][Pkt Len c2s/s2c min/avg/max/stddev: 54/60 202/548 954/1506 267/645][Risk: ** TLS (probably) Not Carrying HTTPS **][Risk Score: 10][Risk Info: No ALPN][TLSv1.2][JA3C: e4d448cdfe06dc1243c1eb026c74ac9a][JA4: t12d220700_0d4ca5d4ec72_3304d8368043][ServerNames: teams.microsoft.com][JA3S: 7d8fd34fdb13a7fff30d5a52846b6c4c][Issuer: C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, OU=Microsoft IT, CN=Microsoft IT TLS CA 4][Subject: CN=teams.microsoft.com][Certificate SHA-1: 68:1E:E8:3C:83:70:6F:E3:86:F4:E8:8C:C4:E6:A0:9A:3E:E0:9C:0E][Firefox][Validity: 2019-09-12 18:16:45 - 2021-09-12 18:16:45][Cipher: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384][Plen Bins: 0,16,0,8,0,8,8,0,0,8,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,34,0,0]
33 UDP 93.71.110.205:16332 <-> 192.168.1.6:50016 [proto: 78.38/STUN.Skype_TeamsCall][IP: 0/Unknown][Stream Content: Audio][ClearText][Confidence: DPI][FPC: 78.38/STUN.Skype_TeamsCall, Confidence: DPI][DPI packets: 7][cat: VoIP/10][30 pkts/5952 bytes <-> 7 pkts/3184 bytes][Goodput ratio: 79/91][2.72 sec][bytes ratio: 0.303 (Upload)][IAT c2s/s2c min/avg/max/stddev: 0/0 99/467 1167/1168 282/553][Pkt Len c2s/s2c min/avg/max/stddev: 80/80 198/455 1256/1256 284/507][Mapped IP/Port: 80.181.206.72:57543][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][PLAIN TEXT (SMnzNK)][Plen Bins: 0,8,60,18,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,0,0,0,0,0,0,0,0,0,0]
Expand All @@ -98,7 +98,7 @@ JA3 Host Stats:
42 UDP 192.168.1.6:50036 <-> 52.114.250.137:3478 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][FPC: 78.38/STUN.Skype_TeamsCall, Confidence: DPI][DPI packets: 7][cat: VoIP/10][5 pkts/1390 bytes <-> 4 pkts/733 bytes][Goodput ratio: 85/77][4.06 sec][bytes ratio: 0.309 (Upload)][IAT c2s/s2c min/avg/max/stddev: 0/100 1003/774 2235/2092 994/932][Pkt Len c2s/s2c min/avg/max/stddev: 228/174 278/183 314/198 33/10][Mapped IP/Port: 52.114.250.137:3480][Peer IP/Port: 201.221.32.65:43863][PLAIN TEXT (rtcmedia)][Plen Bins: 0,0,0,0,44,11,11,11,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
43 UDP 192.168.0.1:68 -> 255.255.255.255:67 [proto: 18/DHCP][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 18/DHCP, Confidence: DPI][DPI packets: 1][cat: Network/14][6 pkts/1926 bytes -> 0 pkts/0 bytes][Goodput ratio: 87/0][25.01 sec][Hostname/SNI: tl-sg116e][bytes ratio: 1.000 (Upload)][IAT c2s/s2c min/avg/max/stddev: 4986/0 5001/0 5018/0 11/0][Pkt Len c2s/s2c min/avg/max/stddev: 321/0 321/0 321/0 0/0][DHCP Fingerprint: 1,3][DHCP Class Ident: TL-SG116E][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]
44 UDP 192.168.1.6:50016 <-> 52.114.250.141:3478 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][FPC: 78.38/STUN.Skype_TeamsCall, Confidence: DPI][DPI packets: 7][cat: VoIP/10][4 pkts/1162 bytes <-> 3 pkts/546 bytes][Goodput ratio: 85/77][1.99 sec][bytes ratio: 0.361 (Upload)][IAT c2s/s2c min/avg/max/stddev: 0/98 611/101 1783/104 829/3][Pkt Len c2s/s2c min/avg/max/stddev: 256/174 290/182 314/198 25/11][Mapped IP/Port: 52.114.250.141:3480][Peer IP/Port: 22.64.154.119:29899][PLAIN TEXT (rtcmedia)][Plen Bins: 0,0,0,0,42,0,14,14,28,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
45 TCP 93.62.150.157:443 <-> 192.168.1.6:60512 [proto: 91/TLS][IP: 0/Unknown][Encrypted][Confidence: DPI][FPC: 91/TLS, Confidence: DPI][DPI packets: 4][cat: Web/5][2 pkts/1258 bytes <-> 2 pkts/108 bytes][Goodput ratio: 89/0][< 1 sec][Risk: ** Probing attempt **][Risk Score: 50][Risk Info: TCP connection with unidirectional traffic][Plen Bins: 0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0]
45 TCP 93.62.150.157:443 <-> 192.168.1.6:60512 [proto: 91/TLS][IP: 0/Unknown][Encrypted][Confidence: DPI][FPC: 91/TLS, Confidence: DPI][DPI packets: 4][cat: Web/5][2 pkts/1258 bytes <-> 2 pkts/108 bytes][Goodput ratio: 89/0][< 1 sec][Plen Bins: 0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0]
46 UDP 192.168.1.6:50017 <-> 52.114.250.141:3478 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][FPC: 78.38/STUN.Skype_TeamsCall, Confidence: DPI][DPI packets: 6][cat: VoIP/10][3 pkts/594 bytes <-> 3 pkts/611 bytes][Goodput ratio: 79/79][4.05 sec][bytes ratio: -0.014 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 99/97 2002/2002 3906/3906 1904/1904][Pkt Len c2s/s2c min/avg/max/stddev: 110/187 198/204 256/229 63/18][Mapped IP/Port: 52.114.250.141:3480][PLAIN TEXT (The request did not contain a M)][Plen Bins: 0,0,16,0,33,33,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
47 UDP 192.168.1.6:50037 <-> 52.114.250.137:3478 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][FPC: 78.38/STUN.Skype_TeamsCall, Confidence: DPI][DPI packets: 6][cat: VoIP/10][3 pkts/594 bytes <-> 3 pkts/611 bytes][Goodput ratio: 79/79][4.05 sec][bytes ratio: -0.014 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 95/94 2000/2000 3905/3905 1905/1906][Pkt Len c2s/s2c min/avg/max/stddev: 110/187 198/204 256/229 63/18][Mapped IP/Port: 52.114.250.137:3480][PLAIN TEXT (The request did not contain a M)][Plen Bins: 0,0,16,0,33,33,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
48 UDP 93.71.110.205:16333 <-> 192.168.1.6:50036 [proto: 78.38/STUN.Skype_TeamsCall][IP: 0/Unknown][Stream Content: Video][ClearText][Confidence: DPI][FPC: 78.38/STUN.Skype_TeamsCall, Confidence: DPI][DPI packets: 7][cat: VoIP/10][3 pkts/414 bytes <-> 5 pkts/634 bytes][Goodput ratio: 69/67][2.31 sec][bytes ratio: -0.210 (Download)][IAT c2s/s2c min/avg/max/stddev: 101/15 634/572 1166/1168 532/565][Pkt Len c2s/s2c min/avg/max/stddev: 130/88 138/127 154/158 11/27][Mapped IP/Port: 80.181.206.72:61310][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,25,37,37,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
Expand Down Expand Up @@ -133,7 +133,7 @@ JA3 Host Stats:
77 UDP 192.168.1.6:62863 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 5.250/DNS.Teams, Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/103 bytes <-> 1 pkts/158 bytes][Goodput ratio: 59/73][0.07 sec][Hostname/SNI: emea.ng.msg.teams-msgapi.trafficmanager.net][52.114.108.8][PLAIN TEXT (msgapi)][Plen Bins: 0,50,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
78 UDP 192.168.1.6:56634 <-> 192.168.1.1:53 [proto: 5.140/DNS.Apple][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 5.140/DNS.Apple, Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/89 bytes <-> 1 pkts/142 bytes][Goodput ratio: 52/70][0.03 sec][Hostname/SNI: captive.apple.com.edgekey.net][23.50.158.88][PLAIN TEXT (captive)][Plen Bins: 0,50,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
79 UDP 192.168.1.6:60813 <-> 192.168.1.1:53 [proto: 5/DNS][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 5/DNS, Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/93 bytes <-> 1 pkts/109 bytes][Goodput ratio: 54/61][0.01 sec][Hostname/SNI: skypedataprdcolneu04.cloudapp.net][52.114.77.33][PLAIN TEXT (skypedataprdcolneu04)][Plen Bins: 0,50,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
80 TCP 192.168.1.6:58533 -> 149.154.167.91:443 [proto: 185/Telegram][IP: 185/Telegram][Encrypted][Confidence: DPI (partial)][FPC: 185/Telegram, Confidence: IP address][DPI packets: 3][cat: Chat/9][3 pkts/186 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][4.29 sec][Risk: ** Unidirectional Traffic **** Probing attempt **][Risk Score: 60][Risk Info: No server to client traffic / TCP connection with unidirectional 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]
80 TCP 192.168.1.6:58533 -> 149.154.167.91:443 [proto: 185/Telegram][IP: 185/Telegram][Encrypted][Confidence: DPI (partial)][FPC: 185/Telegram, Confidence: IP address][DPI packets: 3][cat: Chat/9][3 pkts/186 bytes -> 0 pkts/0 bytes][Goodput ratio: 0/0][4.29 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]
81 ICMP 93.71.110.205:0 -> 192.168.1.6:0 [proto: 81/ICMP][IP: 0/Unknown][ClearText][Confidence: DPI][FPC: 81/ICMP, Confidence: DPI][DPI packets: 1][cat: Network/14][2 pkts/140 bytes -> 0 pkts/0 bytes][Goodput ratio: 40/0][0.01 sec][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]
82 UDP 192.168.1.112:57621 -> 192.168.1.255:57621 [proto: 156/Spotify][IP: 0/Unknown][Encrypted][Confidence: DPI][FPC: 156/Spotify, Confidence: DPI][DPI packets: 1][cat: Music/25][1 pkts/82 bytes -> 0 pkts/0 bytes][Goodput ratio: 48/0][< 1 sec][PLAIN TEXT (SpotUdp)][Plen Bins: 0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]

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