STUN: add support for Microsoft Multiplexed TURN channels (#2464)

4 files changed, 47 insertions, 7 deletions

diff --git a/src/lib/protocols/stun.c b/src/lib/protocols/stun.c
index 60986f232..375688766 100644
--- a/src/lib/protocols/stun.c
+++ b/src/lib/protocols/stun.c
@@ -347,6 +347,14 @@ int is_stun(struct ndpi_detection_module_struct *ndpi_struct,
     payload_length -=2;
   }
 
+  /* Microsoft Multiplexed TURN messages */
+  if(payload_length >= STUN_HDR_LEN + 12 &&
+     ntohs(get_u_int16_t(payload, 0)) == 0xFF10 &&
+     ntohs(get_u_int16_t(payload, 2)) + 4 == payload_length) {
+    payload += 12;
+    payload_length -= 12;
+  }
+
   msg_type = ntohs(*((u_int16_t *)&payload[0]));
   msg_len = ntohs(*((u_int16_t *)&payload[2]));
   magic_cookie = ntohl(*((u_int32_t *)&payload[4]));
@@ -823,7 +831,39 @@ static int stun_search_again(struct ndpi_detection_module_struct *ndpi_struct,
       NDPI_LOG_DBG(ndpi_struct, "Unexpected\n");
     }
   } else {
-    NDPI_LOG_DBG(ndpi_struct, "QUIC range. Unexpected\n");
+    /* Microsoft Multiplexed TURN messages.
+       See: https://msopenspecs.azureedge.net/files/MS-TURN/%5bMS-TURN%5d.pdf 2.2.3 */
+    if(packet->payload_packet_len >= 12 &&
+       ntohs(get_u_int16_t(packet->payload, 0)) == 0xFF10 &&
+       flow->detected_protocol_stack[0] == NDPI_PROTOCOL_SKYPE_TEAMS_CALL) {
+      u_int16_t ch_len;
+
+      ch_len = ntohs(get_u_int16_t(packet->payload, 2));
+
+      if(ch_len == packet->payload_packet_len - 4 &&
+         ch_len >= 8) {
+        const u_int8_t *orig_payload;
+        u_int16_t orig_payload_length;
+
+        orig_payload = packet->payload;
+        orig_payload_length = packet->payload_packet_len;
+        packet->payload = packet->payload + 12;
+        packet->payload_packet_len = ch_len - 8;
+
+        stun_search_again(ndpi_struct, flow);
+
+        NDPI_LOG_DBG(ndpi_struct, "End recursion on MS channel\n");
+
+        packet->payload = orig_payload;
+        packet->payload_packet_len = orig_payload_length;
+
+      } else {
+        NDPI_LOG_ERR(ndpi_struct, "Invalid MS channel length %d %d\n",
+                     ch_len, packet->payload_packet_len - 4);
+      }
+    } else {
+      NDPI_LOG_DBG(ndpi_struct, "QUIC other range. Unexpected\n");
+    }
   }
   return keep_extra_dissection(ndpi_struct, flow);
 }
diff --git a/tests/cfgs/caches_cfg/result/teams.pcap.out b/tests/cfgs/caches_cfg/result/teams.pcap.out
index 6a24e985f..e18e36b60 100644
--- a/tests/cfgs/caches_cfg/result/teams.pcap.out
+++ b/tests/cfgs/caches_cfg/result/teams.pcap.out
@@ -115,8 +115,8 @@ JA3 Host Stats:
 	59	UDP 192.168.1.6:57504 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/92 bytes <-> 1 pkts/222 bytes][Goodput ratio: 54/81][0.04 sec][Hostname/SNI: chatsvcagg.svcs.teams.office.com][52.114.88.59][PLAIN TEXT (chatsvcagg)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	60	UDP 192.168.1.6:58457 <-> 192.168.1.1:53 [proto: 5.219/DNS.Microsoft365][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/78 bytes <-> 1 pkts/236 bytes][Goodput ratio: 46/82][0.01 sec][Hostname/SNI: outlook.office.com][13.107.18.11][PLAIN TEXT (outlook)][Plen Bins: 0,50,0,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	61	UDP 192.168.1.6:50653 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/95 bytes <-> 1 pkts/216 bytes][Goodput ratio: 55/80][0.03 sec][Hostname/SNI: api.flightproxy.teams.microsoft.com][52.114.77.136][PLAIN TEXT (flightproxy)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	62	UDP 52.114.252.8:3479 <-> 192.168.1.6:50016 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	63	UDP 52.114.252.21:3480 <-> 192.168.1.6:50036 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Video][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	62	UDP 52.114.252.8:3479 <-> 192.168.1.6:50016 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Mapped IP/Port: 52.114.252.8:3479][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	63	UDP 52.114.252.21:3480 <-> 192.168.1.6:50036 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Video][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Mapped IP/Port: 52.114.252.21:3480][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	64	UDP 192.168.1.6:64046 <-> 192.168.1.1:53 [proto: 5.26/DNS.ntop][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 3][cat: Network/14][2 pkts/166 bytes <-> 1 pkts/136 bytes][Goodput ratio: 49/69][1.01 sec][Hostname/SNI: b._dns-sd._udp.ntop.org][::][Risk: ** Error Code **][Risk Score: 10][Risk Info: DNS Error Code NXDOMAIN][PLAIN TEXT (postmaster)][Plen Bins: 0,66,33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	65	UDP 192.168.1.6:63106 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/95 bytes <-> 1 pkts/203 bytes][Goodput ratio: 55/79][0.03 sec][Hostname/SNI: eu-prod.asyncgw.teams.microsoft.com][52.114.75.70][PLAIN TEXT (microsoft)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	66	UDP 192.168.1.6:61245 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/87 bytes <-> 1 pkts/209 bytes][Goodput ratio: 51/80][0.05 sec][Hostname/SNI: euaz.tr.teams.microsoft.com][52.114.250.123][Risk: ** Minor Issues **][Risk Score: 10][Risk Info: DNS Record with zero TTL][PLAIN TEXT (microsoft)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
diff --git a/tests/cfgs/caches_global/result/teams.pcap.out b/tests/cfgs/caches_global/result/teams.pcap.out
index 7f837b46f..0c52f858e 100644
--- a/tests/cfgs/caches_global/result/teams.pcap.out
+++ b/tests/cfgs/caches_global/result/teams.pcap.out
@@ -115,8 +115,8 @@ JA3 Host Stats:
 	59	UDP 192.168.1.6:57504 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/92 bytes <-> 1 pkts/222 bytes][Goodput ratio: 54/81][0.04 sec][Hostname/SNI: chatsvcagg.svcs.teams.office.com][52.114.88.59][PLAIN TEXT (chatsvcagg)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	60	UDP 192.168.1.6:58457 <-> 192.168.1.1:53 [proto: 5.219/DNS.Microsoft365][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/78 bytes <-> 1 pkts/236 bytes][Goodput ratio: 46/82][0.01 sec][Hostname/SNI: outlook.office.com][13.107.18.11][PLAIN TEXT (outlook)][Plen Bins: 0,50,0,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	61	UDP 192.168.1.6:50653 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/95 bytes <-> 1 pkts/216 bytes][Goodput ratio: 55/80][0.03 sec][Hostname/SNI: api.flightproxy.teams.microsoft.com][52.114.77.136][PLAIN TEXT (flightproxy)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	62	UDP 52.114.252.8:3479 <-> 192.168.1.6:50016 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	63	UDP 52.114.252.21:3480 <-> 192.168.1.6:50036 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Video][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	62	UDP 52.114.252.8:3479 <-> 192.168.1.6:50016 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Mapped IP/Port: 52.114.252.8:3479][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	63	UDP 52.114.252.21:3480 <-> 192.168.1.6:50036 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Video][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Mapped IP/Port: 52.114.252.21:3480][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	64	UDP 192.168.1.6:64046 <-> 192.168.1.1:53 [proto: 5.26/DNS.ntop][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 3][cat: Network/14][2 pkts/166 bytes <-> 1 pkts/136 bytes][Goodput ratio: 49/69][1.01 sec][Hostname/SNI: b._dns-sd._udp.ntop.org][::][Risk: ** Error Code **][Risk Score: 10][Risk Info: DNS Error Code NXDOMAIN][PLAIN TEXT (postmaster)][Plen Bins: 0,66,33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	65	UDP 192.168.1.6:63106 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/95 bytes <-> 1 pkts/203 bytes][Goodput ratio: 55/79][0.03 sec][Hostname/SNI: eu-prod.asyncgw.teams.microsoft.com][52.114.75.70][PLAIN TEXT (microsoft)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	66	UDP 192.168.1.6:61245 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/87 bytes <-> 1 pkts/209 bytes][Goodput ratio: 51/80][0.05 sec][Hostname/SNI: euaz.tr.teams.microsoft.com][52.114.250.123][Risk: ** Minor Issues **][Risk Score: 10][Risk Info: DNS Record with zero TTL][PLAIN TEXT (microsoft)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
diff --git a/tests/cfgs/default/result/teams.pcap.out b/tests/cfgs/default/result/teams.pcap.out
index 7f837b46f..0c52f858e 100644
--- a/tests/cfgs/default/result/teams.pcap.out
+++ b/tests/cfgs/default/result/teams.pcap.out
@@ -115,8 +115,8 @@ JA3 Host Stats:
 	59	UDP 192.168.1.6:57504 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/92 bytes <-> 1 pkts/222 bytes][Goodput ratio: 54/81][0.04 sec][Hostname/SNI: chatsvcagg.svcs.teams.office.com][52.114.88.59][PLAIN TEXT (chatsvcagg)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	60	UDP 192.168.1.6:58457 <-> 192.168.1.1:53 [proto: 5.219/DNS.Microsoft365][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/78 bytes <-> 1 pkts/236 bytes][Goodput ratio: 46/82][0.01 sec][Hostname/SNI: outlook.office.com][13.107.18.11][PLAIN TEXT (outlook)][Plen Bins: 0,50,0,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	61	UDP 192.168.1.6:50653 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/95 bytes <-> 1 pkts/216 bytes][Goodput ratio: 55/80][0.03 sec][Hostname/SNI: api.flightproxy.teams.microsoft.com][52.114.77.136][PLAIN TEXT (flightproxy)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	62	UDP 52.114.252.8:3479 <-> 192.168.1.6:50016 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
-	63	UDP 52.114.252.21:3480 <-> 192.168.1.6:50036 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Video][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	62	UDP 52.114.252.8:3479 <-> 192.168.1.6:50016 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Audio][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Mapped IP/Port: 52.114.252.8:3479][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
+	63	UDP 52.114.252.21:3480 <-> 192.168.1.6:50036 [proto: 78.38/STUN.Skype_TeamsCall][IP: 276/Azure][Stream Content: Video][ClearText][Confidence: DPI][DPI packets: 2][cat: VoIP/10][1 pkts/166 bytes <-> 1 pkts/142 bytes][Goodput ratio: 74/70][0.01 sec][Mapped IP/Port: 52.114.252.21:3480][Risk: ** Known Proto on Non Std Port **][Risk Score: 50][Plen Bins: 0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	64	UDP 192.168.1.6:64046 <-> 192.168.1.1:53 [proto: 5.26/DNS.ntop][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 3][cat: Network/14][2 pkts/166 bytes <-> 1 pkts/136 bytes][Goodput ratio: 49/69][1.01 sec][Hostname/SNI: b._dns-sd._udp.ntop.org][::][Risk: ** Error Code **][Risk Score: 10][Risk Info: DNS Error Code NXDOMAIN][PLAIN TEXT (postmaster)][Plen Bins: 0,66,33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	65	UDP 192.168.1.6:63106 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/95 bytes <-> 1 pkts/203 bytes][Goodput ratio: 55/79][0.03 sec][Hostname/SNI: eu-prod.asyncgw.teams.microsoft.com][52.114.75.70][PLAIN TEXT (microsoft)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
 	66	UDP 192.168.1.6:61245 <-> 192.168.1.1:53 [proto: 5.250/DNS.Teams][IP: 0/Unknown][ClearText][Confidence: DPI][DPI packets: 2][cat: Network/14][1 pkts/87 bytes <-> 1 pkts/209 bytes][Goodput ratio: 51/80][0.05 sec][Hostname/SNI: euaz.tr.teams.microsoft.com][52.114.250.123][Risk: ** Minor Issues **][Risk Score: 10][Risk Info: DNS Record with zero TTL][PLAIN TEXT (microsoft)][Plen Bins: 0,50,0,0,0,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]