TLS: avoid setting `NDPI_TLS_SELFSIGNED_CERTIFICATE` for webrtc traffic (#2417)

See RFC8122: it is quite likely that STUN/DTLS/SRTP flows use
self-signed certificates

Follow-up of b287d6ec8

6 files changed, 13 insertions, 11 deletions

diff --git a/src/include/ndpi_typedefs.h b/src/include/ndpi_typedefs.h
index 0f01a4a87..aa59c5081 100644
--- a/src/include/ndpi_typedefs.h
+++ b/src/include/ndpi_typedefs.h
@@ -1336,7 +1336,7 @@ struct ndpi_flow_struct {
       char ja3_client[33], ja3_server[33], ja4_client[37];
       u_int16_t server_cipher;
       u_int8_t sha1_certificate_fingerprint[20];
-      u_int8_t hello_processed:1, ch_direction:1, subprotocol_detected:1, fingerprint_set:1, _pad:4;
+      u_int8_t hello_processed:1, ch_direction:1, subprotocol_detected:1, fingerprint_set:1, webrtc:1, _pad:3;
 
 #ifdef TLS_HANDLE_SIGNATURE_ALGORITMS
       /* Under #ifdef to save memory for those who do not need them */
diff --git a/src/lib/protocols/tls.c b/src/lib/protocols/tls.c
index 975d7a8c6..0a3dda4ec 100644
--- a/src/lib/protocols/tls.c
+++ b/src/lib/protocols/tls.c
@@ -755,7 +755,8 @@ void processCertificateElements(struct ndpi_detection_module_struct *ndpi_struct
     if(ndpi_check_issuerdn_risk_exception(ndpi_struct, flow->protos.tls_quic.issuerDN))
       return; /* This is a trusted DN */
 
-    ndpi_set_risk(flow, NDPI_TLS_SELFSIGNED_CERTIFICATE, flow->protos.tls_quic.subjectDN);
+    if(!flow->protos.tls_quic.webrtc)
+      ndpi_set_risk(flow, NDPI_TLS_SELFSIGNED_CERTIFICATE, flow->protos.tls_quic.subjectDN);
   }
 
 #if DEBUG_TLS
@@ -1795,7 +1796,6 @@ int processClientServerHello(struct ndpi_detection_module_struct *ndpi_struct,
   u_int8_t handshake_type;
   bool is_quic = (quic_version != 0);
   bool is_dtls = packet->udp && (!is_quic);
-  bool use_srtp = 0;
 
 #ifdef DEBUG_TLS
   printf("TLS %s() called\n", __FUNCTION__);
@@ -2539,7 +2539,9 @@ int processClientServerHello(struct ndpi_detection_module_struct *ndpi_struct,
 		printf("Client TLS [SIGNATURE_ALGORITHMS: %s]\n", ja.client.signature_algorithms_str);
 #endif
 	      } else if(extension_id == 14 /* use_srtp */) {
-                use_srtp = 1;
+                /* This is likely a werbrtc flow */
+                if(flow->stun.maybe_dtls || flow->detected_protocol_stack[0] == NDPI_PROTOCOL_DTLS)
+	          flow->protos.tls_quic.webrtc = 1;
 #ifdef DEBUG_TLS
                 printf("Client TLS: use_srtp\n");
 #endif
@@ -2867,7 +2869,7 @@ compute_ja3c:
 
 	    /* Before returning to the caller we need to make a final check */
 	    if((flow->protos.tls_quic.ssl_version >= 0x0303) /* >= TLSv1.2 */
-	       && !(flow->stun.maybe_dtls == 1 && is_dtls && use_srtp) /* Webrtc traffic */
+	       && !flow->protos.tls_quic.webrtc
 	       && (flow->protos.tls_quic.advertised_alpns == NULL) /* No ALPN */) {
 	      ndpi_set_risk(flow, NDPI_TLS_NOT_CARRYING_HTTPS, "No ALPN");
 	    }
@@ -2882,7 +2884,7 @@ compute_ja3c:
 	    /* Add check for missing SNI */
 	    if(flow->host_server_name[0] == '\0'
 	       && (flow->protos.tls_quic.ssl_version >= 0x0302) /* TLSv1.1 */
-	       && !(flow->stun.maybe_dtls == 1 && is_dtls && use_srtp) /* Webrtc traffic */
+	       && !flow->protos.tls_quic.webrtc
 	       && (flow->protos.tls_quic.encrypted_sni.esni == NULL) /* No ESNI */
 	       ) {
 	      /* This is a bit suspicious */
diff --git a/tests/cfgs/default/result/geforcenow.pcapng.out b/tests/cfgs/default/result/geforcenow.pcapng.out
index a2c15c854..a5c9ec668 100644
--- a/tests/cfgs/default/result/geforcenow.pcapng.out
+++ b/tests/cfgs/default/result/geforcenow.pcapng.out
@@ -32,4 +32,4 @@ JA3 Host Stats:
 
 
 	1	TCP 192.168.1.245:57490 <-> 80.84.167.206:49100 [proto: 91.341/TLS.GeForceNow][IP: 342/Nvidia][Encrypted][Confidence: DPI][DPI packets: 7][cat: Game/8][27 pkts/8759 bytes <-> 27 pkts/39892 bytes][Goodput ratio: 80/96][1.34 sec][Hostname/SNI: 80-84-167-206.cloudmatchbeta.nvidiagrid.net][(Advertised) ALPNs: http/1.1][TLS Supported Versions: GREASE;TLSv1.3;TLSv1.2][bytes ratio: -0.640 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 56/12 946/84 200/21][Pkt Len c2s/s2c min/avg/max/stddev: 66/66 324/1477 2962/2962 631/1355][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][TLSv1.2][JA3C: 021c7413ddeb0d58973451b0e3b19eca][JA4: t13d1516ht_8daaf6152771_e5627efa2ab1][ServerNames: prod.cloudmatchbeta.nvidiagrid.net,*.cloudmatchbeta.nvidiagrid.net][JA3S: 098e26e2609212ac1bfac552fbe04127][Issuer: C=US, O=DigiCert Inc, CN=DigiCert TLS RSA SHA256 2020 CA1][Subject: C=US, ST=California, L=Santa Clara, O=NVIDIA Corporation, CN=prod.cloudmatchbeta.nvidiagrid.net][Certificate SHA-1: 8C:24:BC:2B:01:63:B9:AC:83:90:F3:A9:F9:EA:72:5E:F4:47:A2:77][Chrome][Validity: 2022-08-09 00:00:00 - 2023-08-09 23:59:59][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][Plen Bins: 0,23,2,0,0,5,0,0,14,0,2,0,0,0,0,0,5,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,42]
-	2	UDP 192.168.1.245:52441 <-> 80.84.167.206:18452 [proto: 30.341/DTLS.GeForceNow][IP: 342/Nvidia][Encrypted][Confidence: DPI][DPI packets: 17][cat: Game/8][21 pkts/3455 bytes <-> 33 pkts/16894 bytes][Goodput ratio: 74/92][1.03 sec][bytes ratio: -0.660 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 51/30 360/689 91/130][Pkt Len c2s/s2c min/avg/max/stddev: 87/67 165/512 582/1222 101/514][Mapped IP/Port: 10.0.20.8:51651][Risk: ** Self-signed Cert **** TLS Cert Validity Too Long **][Risk Score: 150][Risk Info: TLS Cert lasts 730 days / CN=NVIDIA GameStream][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: a9e0318114bb46bdbeef6d54e42c915f][Issuer: CN=NVIDIA GameStream][Subject: CN=NVIDIA GameStream][Certificate SHA-1: D1:FC:74:AD:A0:6F:11:C1:F4:4D:F9:4C:2B:25:88:A6:2B:6E:65:1E][Validity: 2022-05-21 12:24:31 - 2024-05-20 12:24:31][Cipher: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256][PLAIN TEXT (BffATDg/Gz0)][Plen Bins: 1,17,33,9,12,1,0,0,0,0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,21,0,0,0,0,0,0,0,0,0,0,0]
+	2	UDP 192.168.1.245:52441 <-> 80.84.167.206:18452 [proto: 30.341/DTLS.GeForceNow][IP: 342/Nvidia][Encrypted][Confidence: DPI][DPI packets: 17][cat: Game/8][21 pkts/3455 bytes <-> 33 pkts/16894 bytes][Goodput ratio: 74/92][1.03 sec][bytes ratio: -0.660 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 51/30 360/689 91/130][Pkt Len c2s/s2c min/avg/max/stddev: 87/67 165/512 582/1222 101/514][Mapped IP/Port: 10.0.20.8:51651][Risk: ** TLS Cert Validity Too Long **][Risk Score: 50][Risk Info: TLS Cert lasts 730 days][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: a9e0318114bb46bdbeef6d54e42c915f][Issuer: CN=NVIDIA GameStream][Subject: CN=NVIDIA GameStream][Certificate SHA-1: D1:FC:74:AD:A0:6F:11:C1:F4:4D:F9:4C:2B:25:88:A6:2B:6E:65:1E][Validity: 2022-05-21 12:24:31 - 2024-05-20 12:24:31][Cipher: TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256][PLAIN TEXT (BffATDg/Gz0)][Plen Bins: 1,17,33,9,12,1,0,0,0,0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,21,0,0,0,0,0,0,0,0,0,0,0]
diff --git a/tests/cfgs/default/result/stun.pcap.out b/tests/cfgs/default/result/stun.pcap.out
index f26fb3b21..90a21626b 100644
--- a/tests/cfgs/default/result/stun.pcap.out
+++ b/tests/cfgs/default/result/stun.pcap.out
@@ -40,7 +40,7 @@ JA3 Host Stats:
 
 
 	1	UDP 192.168.12.169:38123 <-> 31.13.86.54:40003 [proto: 78.268/STUN.FacebookVoip][IP: 119/Facebook][ClearText][Confidence: DPI][DPI packets: 7][cat: VoIP/10][40 pkts/6134 bytes <-> 35 pkts/4420 bytes][Goodput ratio: 73/67][10.09 sec][Hostname/SNI: turner.facebook][bytes ratio: 0.162 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 260/331 6004/5997 1040/1126][Pkt Len c2s/s2c min/avg/max/stddev: 70/68 153/126 190/174 31/39][Mapped IP/Port: 93.47.226.1:11162][Peer IP/Port: 10.36.43.120:42272][Relayed IP/Port: 31.13.86.54:53789][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][PLAIN TEXT (unauthorized)][Plen Bins: 8,14,9,28,40,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	2	UDP 192.168.12.169:49153 <-> 142.250.82.99:3478 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][18 pkts/2856 bytes <-> 15 pkts/3436 bytes][Goodput ratio: 74/82][2.12 sec][bytes ratio: -0.092 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 8/0 88/153 699/625 177/222][Pkt Len c2s/s2c min/avg/max/stddev: 107/76 159/229 588/1240 107/297][Mapped IP/Port: 93.47.225.70:12165][Risk: ** Self-signed Cert **][Risk Score: 100][Risk Info: CN=hangouts][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: 1f5d6a6d0bc5d514dd84d13e6283d309][Issuer: CN=hangouts][Subject: CN=hangouts][Certificate SHA-1: 6C:D0:9A:70:A1:F1:9E:BF:8E:EF:FE:B6:F1:37:A3:E8:8A:3B:F7:C8][Validity: 2022-03-17 02:11:17 - 2023-03-18 02:11:17][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][PLAIN TEXT (BwlkYDtFJ)][Plen Bins: 0,6,57,21,6,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0]
+	2	UDP 192.168.12.169:49153 <-> 142.250.82.99:3478 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][18 pkts/2856 bytes <-> 15 pkts/3436 bytes][Goodput ratio: 74/82][2.12 sec][bytes ratio: -0.092 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 8/0 88/153 699/625 177/222][Pkt Len c2s/s2c min/avg/max/stddev: 107/76 159/229 588/1240 107/297][Mapped IP/Port: 93.47.225.70:12165][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: 1f5d6a6d0bc5d514dd84d13e6283d309][Issuer: CN=hangouts][Subject: CN=hangouts][Certificate SHA-1: 6C:D0:9A:70:A1:F1:9E:BF:8E:EF:FE:B6:F1:37:A3:E8:8A:3B:F7:C8][Validity: 2022-03-17 02:11:17 - 2023-03-18 02:11:17][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][PLAIN TEXT (BwlkYDtFJ)][Plen Bins: 0,6,57,21,6,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0]
 	3	UDP [3516:bf0b:fc53:75e7:70af:f67f:8e49:f603]:56880 <-> [2a38:e156:8167:a333:face:b00c::24d9]:3478 [proto: 78/STUN][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 7][cat: Network/14][21 pkts/1722 bytes <-> 21 pkts/2226 bytes][Goodput ratio: 24/41][191.49 sec][bytes ratio: -0.128 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 2/2 9451/9451 10358/10358 2441/2441][Pkt Len c2s/s2c min/avg/max/stddev: 82/106 82/106 82/106 0/0][Mapped IP/Port: [2001:1670:c:eb04:70af:f67f:8e49:f603]:56880][PLAIN TEXT (WOBTrOXR)][Plen Bins: 50,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	4	TCP 87.47.100.17:3478 <-> 54.1.57.155:37257 [proto: 78/STUN][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 8][cat: Network/14][9 pkts/1494 bytes <-> 11 pkts/2178 bytes][Goodput ratio: 60/67][0.95 sec][Hostname/SNI: apps-host.com][bytes ratio: -0.186 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 104/96 267/252 102/93][Pkt Len c2s/s2c min/avg/max/stddev: 74/94 166/198 234/354 41/65][Mapped IP/Port: 5.37.217.126:37257][Relayed IP/Port: 66.55.92.16:40576][PLAIN TEXT (Unauthorized)][Plen Bins: 10,0,15,21,42,5,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	5	TCP 10.77.110.51:41588 <-> 10.206.50.239:42000 [VLAN: 1611][proto: 78.38/STUN.Skype_TeamsCall][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 9][cat: VoIP/10][7 pkts/1006 bytes <-> 8 pkts/1118 bytes][Goodput ratio: 58/57][1.05 sec][bytes ratio: -0.053 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 189/134 369/399 144/153][Pkt Len c2s/s2c min/avg/max/stddev: 70/64 144/140 164/172 31/43][Mapped IP/Port: 10.77.110.51:41588][Plen Bins: 0,0,25,75,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
diff --git a/tests/cfgs/default/result/stun_dtls_rtp.pcapng.out b/tests/cfgs/default/result/stun_dtls_rtp.pcapng.out
index 420642da4..b5973ac0c 100644
--- a/tests/cfgs/default/result/stun_dtls_rtp.pcapng.out
+++ b/tests/cfgs/default/result/stun_dtls_rtp.pcapng.out
@@ -30,4 +30,4 @@ JA3 Host Stats:
 	1	 192.168.12.156           	 1      
 
 
-	1	UDP 192.168.12.156:37967 <-> 142.250.82.76:19305 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][25 pkts/4202 bytes <-> 14 pkts/4211 bytes][Goodput ratio: 75/86][0.88 sec][bytes ratio: -0.001 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 37/35 203/107 47/36][Pkt Len c2s/s2c min/avg/max/stddev: 103/82 168/301 587/1245 125/320][Mapped IP/Port: 93.35.171.3:61536][Risk: ** Self-signed Cert **][Risk Score: 100][Risk Info: CN=hangouts][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: 1f5d6a6d0bc5d514dd84d13e6283d309][Issuer: CN=hangouts][Subject: CN=hangouts][Certificate SHA-1: AF:DD:BF:F5:59:23:0C:D1:B0:9F:B1:04:2E:89:DF:4C:1B:AB:BE:CC][Validity: 2022-11-30 17:35:18 - 2023-12-01 17:35:18][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][PLAIN TEXT (ShSURJhNF)][Plen Bins: 0,5,47,30,2,0,0,0,0,0,0,0,0,2,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0]
+	1	UDP 192.168.12.156:37967 <-> 142.250.82.76:19305 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][25 pkts/4202 bytes <-> 14 pkts/4211 bytes][Goodput ratio: 75/86][0.88 sec][bytes ratio: -0.001 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 0/0 37/35 203/107 47/36][Pkt Len c2s/s2c min/avg/max/stddev: 103/82 168/301 587/1245 125/320][Mapped IP/Port: 93.35.171.3:61536][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: 1f5d6a6d0bc5d514dd84d13e6283d309][Issuer: CN=hangouts][Subject: CN=hangouts][Certificate SHA-1: AF:DD:BF:F5:59:23:0C:D1:B0:9F:B1:04:2E:89:DF:4C:1B:AB:BE:CC][Validity: 2022-11-30 17:35:18 - 2023-12-01 17:35:18][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][PLAIN TEXT (ShSURJhNF)][Plen Bins: 0,5,47,30,2,0,0,0,0,0,0,0,0,2,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0]
diff --git a/tests/cfgs/default/result/stun_google_meet.pcapng.out b/tests/cfgs/default/result/stun_google_meet.pcapng.out
index 3bccfa7ce..dfbe0eaa5 100644
--- a/tests/cfgs/default/result/stun_google_meet.pcapng.out
+++ b/tests/cfgs/default/result/stun_google_meet.pcapng.out
@@ -32,8 +32,8 @@ JA3 Host Stats:
 	2	 192.168.12.156           	 1      
 
 
-	1	UDP [2001:b07:a3d:c112:48a1:1094:1227:281e]:45572 <-> [2001:4860:4864:6::81]:19305 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Stream Content: Audio][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][30 pkts/4693 bytes <-> 118 pkts/36197 bytes][Goodput ratio: 60/80][0.71 sec][bytes ratio: -0.770 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 22/2 152/74 32/9][Pkt Len c2s/s2c min/avg/max/stddev: 106/99 156/307 608/1265 88/113][Mapped IP/Port: [2001:b07:a3d:c112:48a1:1094:1227:281e]:45572][Risk: ** Self-signed Cert **][Risk Score: 100][Risk Info: CN=hangouts][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: 1f5d6a6d0bc5d514dd84d13e6283d309][Issuer: CN=hangouts][Subject: CN=hangouts][Certificate SHA-1: 07:CC:FC:28:04:F2:29:8F:E9:C4:BF:AC:F6:D2:BD:F2:BA:36:AD:31][Validity: 2023-10-11 02:02:47 - 2024-10-11 02:02:47][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][PLAIN TEXT (igoKAAiKAiADEA)][Plen Bins: 0,6,16,5,2,0,0,0,68,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	2	UDP 192.168.12.156:38152 <-> 142.250.82.76:19305 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][28 pkts/4034 bytes <-> 46 pkts/12188 bytes][Goodput ratio: 71/84][0.87 sec][bytes ratio: -0.503 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 30/10 205/154 50/29][Pkt Len c2s/s2c min/avg/max/stddev: 87/79 144/265 587/1245 89/180][Mapped IP/Port: 93.35.171.209:39032][Risk: ** Self-signed Cert **][Risk Score: 100][Risk Info: CN=hangouts][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: 1f5d6a6d0bc5d514dd84d13e6283d309][Issuer: CN=hangouts][Subject: CN=hangouts][Certificate SHA-1: 49:1A:C7:70:3E:79:F9:C5:3D:0F:46:33:B7:A4:EC:54:B0:93:C9:61][Validity: 2023-06-19 17:32:20 - 2024-06-19 17:32:20][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][PLAIN TEXT (HrRgpad)][Plen Bins: 0,8,37,9,4,0,0,0,38,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0]
+	1	UDP [2001:b07:a3d:c112:48a1:1094:1227:281e]:45572 <-> [2001:4860:4864:6::81]:19305 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Stream Content: Audio][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][30 pkts/4693 bytes <-> 118 pkts/36197 bytes][Goodput ratio: 60/80][0.71 sec][bytes ratio: -0.770 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 22/2 152/74 32/9][Pkt Len c2s/s2c min/avg/max/stddev: 106/99 156/307 608/1265 88/113][Mapped IP/Port: [2001:b07:a3d:c112:48a1:1094:1227:281e]:45572][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: 1f5d6a6d0bc5d514dd84d13e6283d309][Issuer: CN=hangouts][Subject: CN=hangouts][Certificate SHA-1: 07:CC:FC:28:04:F2:29:8F:E9:C4:BF:AC:F6:D2:BD:F2:BA:36:AD:31][Validity: 2023-10-11 02:02:47 - 2024-10-11 02:02:47][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][PLAIN TEXT (igoKAAiKAiADEA)][Plen Bins: 0,6,16,5,2,0,0,0,68,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	2	UDP 192.168.12.156:38152 <-> 142.250.82.76:19305 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][28 pkts/4034 bytes <-> 46 pkts/12188 bytes][Goodput ratio: 71/84][0.87 sec][bytes ratio: -0.503 (Download)][IAT c2s/s2c min/avg/max/stddev: 0/0 30/10 205/154 50/29][Pkt Len c2s/s2c min/avg/max/stddev: 87/79 144/265 587/1245 89/180][Mapped IP/Port: 93.35.171.209:39032][DTLSv1.2][JA3C: c14667d7da3e6f7a7ab5519ef78c2452][JA4: t00d110700_c45550529adf_d9dd6182da81][JA3S: 1f5d6a6d0bc5d514dd84d13e6283d309][Issuer: CN=hangouts][Subject: CN=hangouts][Certificate SHA-1: 49:1A:C7:70:3E:79:F9:C5:3D:0F:46:33:B7:A4:EC:54:B0:93:C9:61][Validity: 2023-06-19 17:32:20 - 2024-06-19 17:32:20][Cipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256][PLAIN TEXT (HrRgpad)][Plen Bins: 0,8,37,9,4,0,0,0,38,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0]
 	3	UDP 192.168.12.156:38152 <-> 142.250.82.76:3478 [proto: 30.404/DTLS.GoogleCall][IP: 126/Google][Stream Content: Audio][Encrypted][Confidence: DPI][DPI packets: 17][cat: VoIP/10][55 pkts/7402 bytes <-> 24 pkts/3525 bytes][Goodput ratio: 69/71][6.63 sec][bytes ratio: 0.355 (Upload)][IAT c2s/s2c min/avg/max/stddev: 0/2 109/184 402/761 143/224][Pkt Len c2s/s2c min/avg/max/stddev: 87/82 135/147 423/579 69/115][Mapped IP/Port: 93.35.171.209:39032][PLAIN TEXT (HrRgpad)][Plen Bins: 0,39,34,15,0,1,0,0,5,1,1,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	4	UDP 192.168.12.156:45400 <-> 142.250.82.76:3478 [proto: 78.404/STUN.GoogleCall][IP: 126/Google][ClearText][Confidence: DPI][DPI packets: 7][cat: VoIP/10][17 pkts/2694 bytes <-> 16 pkts/1696 bytes][Goodput ratio: 73/60][54.70 sec][bytes ratio: 0.227 (Upload)][IAT c2s/s2c min/avg/max/stddev: 90/78 3250/2028 17905/6554 4698/2127][Pkt Len c2s/s2c min/avg/max/stddev: 158/106 158/106 166/106 2/0][Mapped IP/Port: 93.35.171.209:39033][PLAIN TEXT (HrRgpad)][Plen Bins: 0,0,48,51,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	5	UDP 192.168.12.156:38152 <-> 74.125.128.127:19302 [proto: 78.404/STUN.GoogleCall][IP: 126/Google][ClearText][Confidence: DPI (cache)][DPI packets: 7][cat: VoIP/10][6 pkts/372 bytes <-> 6 pkts/444 bytes][Goodput ratio: 32/43][50.12 sec][bytes ratio: -0.088 (Mixed)][IAT c2s/s2c min/avg/max/stddev: 10019/10019 10022/10021 10026/10025 3/3][Pkt Len c2s/s2c min/avg/max/stddev: 62/74 62/74 62/74 0/0][Mapped IP/Port: 93.35.171.209:39032][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][PLAIN TEXT (kAGNNzv)][Plen Bins: 50,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]