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Cisco Meraki MX

Overview

Cisco Meraki MX is a multifunctional security and SD-WAN enterprise appliance with a wide set of capabilities.

  • Vendor: Cisco
  • Supported environment: On Premise
  • Detection based on: Telemetry
  • Supported application or feature: Security and SD-WAN

High-Level Architecture Diagram

  • Type of integration: Outbound (PUSH to Sekoia.io)
  • Schema

cisco_mx_architecture

Specification

Prerequisites

  • Resource:
    • Self-managed syslog forwarder
  • Network:
    • Outbound traffic allowed
  • Permissions:
    • Administrator or Root access to the Cisco Meraki MX device
    • Root access to the Linux server with the syslog forwarder

Transport Protocol/Method

  • Indirect Syslog

Logs details

  • Supported functionalities: See section Overview
  • Supported type(s) of structure: Plain text
  • Supported verbosity level: Informational

Note

Log levels are based on the taxonomy of RFC5424. Adapt according to the terminology used by the editor.

Step-by-Step Configuration Procedure

Instructions on the 3rd Party Solution

Forward Cisco Meraki MX Logs to Sekoia.io

This setup guide will show you how to provide an integration between Cisco Meraki MX events and Sekoia.io.

Enable Syslog Forwarding: - Log on your Cisco Meraki MX appliance. - Follow this guide to enable syslog forwarding to a syslog forwarder.

Instruction on Sekoia

Configure Your Intake

This section will guide you through creating the intake object in Sekoia, which provides a unique identifier called the "Intake key." The Intake key is essential for later configuration, as it references the Community, Entity, and Parser (Intake Format) used when receiving raw events on Sekoia.

  1. Go to the Sekoia Intake page.
  2. Click on the + New Intake button at the top right of the page.
  3. Search for your Intake by the product name in the search bar.
  4. Give it a Name and associate it with an Entity (and a Community if using multi-tenant mode).
  5. Click on Create.
  6. You will be redirected to the Intake listing page, where you will find a new line with the name you gave to the Intake.

Note

For more details on how to use the Intake page and to find the Intake key you just created, refer to this documentation.

Configure a forwarder

To forward events using syslog to Sekoia.io, you need to update the syslog header with the intake key you previously created. Here is an example of your message before the forwarder 

<%pri%>1 %timestamp:::date-rfc3339% %hostname% %app-name% %procid% LOG RAW_MESSAGE
and after 
<%pri%>1 %timestamp:::date-rfc3339% %hostname% %app-name% %procid% LOG [SEKOIA@53288 intake_key=\"YOUR_INTAKE_KEY\"] RAW_MESSAGE

To achieve this you can:

  • Use the Sekoia.io forwarder which is the official supported way to collect data using the syslog protocol in Sekoia.io. In charge of centralizing data coming from many equipments/sources and forwarding them to Sekoia.io with the apporpriated format, it is a prepackaged option. You only have to provide your intake key as parameter.
  • Use your own Syslog service instance. Maybe you already have an intance of one of these components on your side and want to reuse it in order to centralize data before forwarding them to Sekoia.io. When using this mode, you have to configure and maintain your component in order to respect the expected Sekoia.io format.

Warning

Only the Sekoia.io forwarder is officially supported. Other options are documented for reference purposes but do not have official support.

Raw Events Samples

In this section, you will find examples of raw logs as generated natively by the source. These examples are provided to help integrators understand the data format before ingestion into Sekoia.io. It is crucial for setting up the correct parsing stages and ensuring that all relevant information is captured.

1673516966.834663913 FW_MX_01 events dhcp lease of ip 1.2.3.4 from mx mac AA:BB:CC:DD:EE:FF for client mac 01:02:03:04:05:06 from router 5.6.7.8 on subnet 255.255.255.0 with dns 9.10.11.12

1673541902.311547724 FW_MX_01 events dhcp no offers for mac AA:BB:CC:DD:EE:FF

1673596662.226844514 FW_MX_01 events type=anyconnect_vpn_auth_failure msg= 'RADIUS[373] Server IP=1.2.3.4 Server port=1812 Peer IP=5.6.7.8 Peer port=56735: Authentication request rejected. '

1673596676.426899545 FW_MX_01 events type=anyconnect_vpn_auth_success msg= 'RADIUS[374] Server IP=1.2.3.4 Server port=1812 Peer IP=5.6.7.8 Peer port=56735 User=john.doe: Authentication request accepted. '

1673614753.814828766 FW_MX_01 events anyconnect_vpn_connect user id 'john.doe@sekoia.io' local ip 1.2.3.4 reconnected from 5.6.7.8

1673614753.814828766 FW_MX_01 events anyconnect_vpn_connect user id 'john.doe@sekoia.io' local ip 1.2.3.4 connected from 5.6.7.8

1673516936.233050742 FW_MX_01 events type=anyconnect_vpn_connection_success msg= 'Server IP=1.2.3.4 Server port=443 Prot[TCP] Peer IP=5.6.7.8 Peer port=55760 conn_id[55356] Connection closed. '

1673614757.517501781 FW_MX_01 events type=anyconnect_vpn_session_manager msg= 'Sess-ID[289] Peer IP=1.2.3.4 User[john.doe@sekoia.io]: Successfully added DTLS tunnel[289.4] '

1673541348.531136002 FW_MX_01 events content_filtering_block url='https://docs.sekoia.io/...' server='1.2.3.4:443' client_mac='AA:BB:CC:DD:EE:FF'

1673277220.253011885 FW_MX_01 firewall src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443

1673277220.253011885 FW_MX_01 firewall allow src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443

1673277244.954105815 FW_MX_01 firewall src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543 pattern: 1 all

1673277244.954105815 FW_MX_01 firewall deny src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543

1673277220.253011885 FW_MX_01 flows src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443

1673277220.253011885 FW_MX_01 flows allow src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443

1673277220.253011885 FW_MX_01 flows src=fe80:110:8897:efab:9202:b3ff:fe1e:8329 dst=fe80:110:8897:efab:9202:b3ff:fe1e:8330 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443

1673277244.954105815 FW_MX_01 flows src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543 pattern: 1 all

1673277244.954105815 FW_MX_01 flows deny src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543

1727862163.911654119 FW_MX_01 flows allow src=1.2.3.4 dst=5.6.7.8 mac=00:11:22:33:44:55 protocol=icmp6 type=136

1673277245.252432409 FW_MX_01 ip_flow_end src=1.2.3.4 dst=5.6.7.8 protocol=udp sport=56391 dport=53 translated_dst_ip=9.10.11.12 translated_port=53

1673277245.262063982 FW_MX_01 ip_flow_start src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=64365 dport=443 translated_src_ip=9.10.11.12 translated_port=64365

1673277245.257656306 FW_MX_01 urls src=1.2.3.4:51960 dst=5.6.7.8:443 mac=AA:BB:CC:DD:EE:FF request: UNKNOWN https://www.google.com/...

1673277244.773622789 FW_MX_01 urls src=1.2.3.4:64194 dst=5.6.7.8:80 mac=AA:BB:CC:DD:EE:FF request: GET http://www.msftconnecttest.com/connecttest.txt

1673277244.416181683 FW_MX_01 urls src=1.2.3.4:55566 dst=5.6.7.8:80 mac=AA:BB:CC:DD:EE:FF agent='Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36' request: GET http://docs.sekoia.io/xdr/features/collect/integrations/network/cisco_meraki/

1673277244.773622789 FW_MX_01 urls src=fe80:110:8897:efab:9202:b3ff:fe1e:8329:64194 dst=fe80:110:8897:efab:9202:b3ff:fe1e:8330:80 mac=AA:BB:CC:DD:EE:FF request: GET http://www.msftconnecttest.com/connecttest.txt

Detection section

The following section provides information for those who wish to learn more about the detection capabilities enabled by collecting this intake. It includes details about the built-in rule catalog, event categories, and ECS fields extracted from raw events. This is essential for users aiming to create custom detection rules, perform hunting activities, or pivot in the events page.

The following Sekoia.io built-in rules match the intake Cisco Meraki MX. This documentation is updated automatically and is based solely on the fields used by the intake which are checked against our rules. This means that some rules will be listed but might not be relevant with the intake.

SEKOIA.IO x Cisco Meraki MX on ATT&CK Navigator

Burp Suite Tool Detected

Burp Suite is a cybersecurity tool. When used as a proxy service, its purpose is to intercept packets and modify them to send them to the server. Burp Collaborator is a network service that Burp Suite uses to help discover many kinds of vulnerabilities (vulnerabilities scanner).

  • Effort: intermediate
CVE-2018-11776 Apache Struts2

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.

  • Effort: intermediate
CVE-2019-0604 SharePoint

Detects the exploitation of the SharePoint vulnerability (CVE-2019-0604).

  • Effort: advanced
CVE-2020-0688 Microsoft Exchange Server Exploit

Detects the exploitation of CVE-2020-0688. The POC exploit a .NET serialization vulnerability in the Exchange Control Panel (ECP) web page. The vulnerability is due to Microsoft Exchange Server not randomizing the keys on a per-installation basis resulting in them using the same validationKey and decryptionKey values. With knowledge of these, values an attacker can craft a special viewstate to use an OS command to be executed by NT_AUTHORITY\SYSTEM using .NET deserialization. To exploit this vulnerability, an attacker needs to leverage the credentials of an account it had already compromised to authenticate to OWA.

  • Effort: elementary
CVE-2020-1147 SharePoint

Detection of SharePoint vulnerability CVE-2020-1147.

  • Effort: advanced
CVE-2020-14882 Oracle WebLogic Server

Detects the exploitation of the Oracle WebLogic Server vulnerability (CVE-2020-16952).

  • Effort: advanced
CVE-2020-17530 Apache Struts RCE

Detects the exploitation of the Apache Struts RCE vulnerability (CVE-2020-17530).

  • Effort: intermediate
CVE-2021-20021 SonicWall Unauthenticated Administrator Access

Detects the exploitation of SonicWall Unauthenticated Admin Access.

  • Effort: advanced
CVE-2021-20023 SonicWall Arbitrary File Read

Detects Arbitrary File Read, which can be used with other vulnerabilities as a mean to obtain outputs generated by attackers, or sensitive data.

  • Effort: advanced
CVE-2021-21972 VMware vCenter

The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2). POST request on the following PATH "/ui/vropspluginui/rest/services/uploadova". If in response body (500) the words it has "uploadFile", that means the vCenter is available to accept files via POST without any restrictions.

  • Effort: intermediate
CVE-2021-21985 VMware vCenter

The VMware vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.0 before 7.0 U2b, 6.7 before 6.7 U3n and 6.5 before 6.5 U3p) and VMware Cloud Foundation (4.x before 4.2.1 and 3.x before 3.10.2.1).

  • Effort: advanced
CVE-2021-22123 Fortinet FortiWeb OS Command Injection

Detects Fortinet FortiWeb OS Command Injection (August 2021) vulnerability exploitation attempt. A remote, authenticated attacker can execute arbitrary commands on the system hosting a vulnerable FortiWeb WAF by sending a POST request with the command in the name field. At the time of writing this rule, it would appear that the request would respond in code 500 for a successful exploitation attempt.

  • Effort: advanced
CVE-2021-22893 Pulse Connect Secure RCE Vulnerability

Detects potential exploitation of the authentication by-pass vulnerability that can allow an unauthenticated user to perform remote arbitrary file execution on the Pulse Connect Secure gateway. It is highly recommended to apply the Pulse Secure mitigations and seach for indicators of compromise on affected servers if you are in doubt over the integrity of your Pulse Connect Secure product.

  • Effort: intermediate
CVE-2021-26855 Exchange SSRF

Detects the exploitation of ProyxLogon vulerability on Exchange servers.

  • Effort: advanced
Covenant Default HTTP Beaconing

Detects potential Covenant communications through the user-agent and specific urls

  • Effort: intermediate
Cryptomining

Detection of domain names potentially related to cryptomining activities.

  • Effort: master
Detect requests to Konni C2 servers

This rule detects requests to Konni C2 servers. These patterns come from an analysis done in 2022, September.

  • Effort: elementary
Discord Suspicious Download

Discord is a messaging application. It allows users to create their own communities to share messages and attachments. Those attachments have little to no overview and can be downloaded by almost anyone, which has been abused by attackers to host malicious payloads.

  • Effort: intermediate
Download Files From Suspicious TLDs

Detects download of certain file types from hosts in suspicious TLDs

  • Effort: master
Dynamic DNS Contacted

Detect communication with dynamic dns domain. This kind of domain is often used by attackers. This rule can trigger false positive in non-controlled environment because dynamic dns is not always malicious.

  • Effort: master
Exfiltration Domain

Detects traffic toward a domain flagged as a possible exfiltration vector.

  • Effort: master
FoggyWeb HTTP Default GET/POST Requests

Detects GET or POST request pattern observed within the first FoggyWeb campaign detected by Microsoft.

  • Effort: advanced
Koadic MSHTML Command

Detects Koadic payload using MSHTML module

  • Effort: intermediate
Nimbo-C2 User Agent

Nimbo-C2 Uses an unusual User-Agent format in its implants.

  • Effort: intermediate
Possible Malicious File Double Extension

Detects request to potential malicious file with double extension

  • Effort: elementary
Potential Bazar Loader User-Agents

Detects potential Bazar loader communications through the user-agent

  • Effort: elementary
Potential Lemon Duck User-Agent

Detects LemonDuck user agent. The format used two sets of alphabetical characters separated by dashes, for example "User-Agent: Lemon-Duck-[A-Z]-[A-Z]".

  • Effort: elementary
Potential LokiBot User-Agent

Detects potential LokiBot communications through the user-agent

  • Effort: intermediate
Privilege Escalation Awesome Scripts (PEAS)

Detect PEAS privileges escalation scripts and binaries

  • Effort: elementary
ProxyShell Microsoft Exchange Suspicious Paths

Detects suspicious calls to Microsoft Exchange resources, in locations related to webshells observed in campaigns using this vulnerability.

  • Effort: elementary
Raccoon Stealer 2.0 Legitimate Third-Party DLL Download URL

Detects Raccoon Stealer 2.0 malware downloading legitimate third-party DLLs from its C2 server. These legitimate DLLs are used by the information stealer to collect data on the compromised hosts.

  • Effort: elementary
Remote Access Tool Domain

Detects traffic toward a domain flagged as a Remote Administration Tool (RAT).

  • Effort: master
Remote Monitoring and Management Software - AnyDesk

Detect artifacts related to the installation or execution of the Remote Monitoring and Management tool AnyDesk.

  • Effort: master
SEKOIA.IO Intelligence Feed

Detect threats based on indicators of compromise (IOCs) collected by SEKOIA's Threat and Detection Research team.

  • Effort: elementary
Sekoia.io EICAR Detection

Detects observables in Sekoia.io CTI tagged as EICAR, which are fake samples meant to test detection.

  • Effort: master
Suspicious Download Links From Legitimate Services

Detects users clicking on Google docs links to download suspicious files. This technique was used a lot by Bazar Loader in the past.

  • Effort: intermediate
Suspicious TOR Gateway

Detects suspicious TOR gateways. Gateways are often used by the victim to pay and decrypt the encrypted files without installing TOR. Tor intercepts the network traffic from one or more apps on user’s computer, usually the user web browser, and shuffles it through a number of randomly-chosen computers before passing it on to its destination. This disguises user location, and makes it harder for servers to pick him/her out on repeat visits, or to tie together separate visits to different sites, this making tracking and surveillance more difficult. Before a network packet starts its journey, user’s computer chooses a random list of relays and repeatedly encrypts the data in multiple layers, like an onion. Each relay knows only enough to strip off the outermost layer of encryption, before passing what’s left on to the next relay in the list.

  • Effort: advanced
Suspicious URI Used In A Lazarus Campaign

Detects suspicious requests to a specific URI, usually on an .asp page. The website is often compromised.

  • Effort: intermediate
TOR Usage Generic Rule

Detects TOR usage globally, whether the IP is a destination or source. TOR is short for The Onion Router, and it gets its name from how it works. TOR intercepts the network traffic from one or more apps on user’s computer, usually the user web browser, and shuffles it through a number of randomly-chosen computers before passing it on to its destination. This disguises user location, and makes it harder for servers to pick him/her out on repeat visits, or to tie together separate visits to different sites, this making tracking and surveillance more difficult. Before a network packet starts its journey, user’s computer chooses a random list of relays and repeatedly encrypts the data in multiple layers, like an onion. Each relay knows only enough to strip off the outermost layer of encryption, before passing what’s left on to the next relay in the list.

  • Effort: master
TrevorC2 HTTP Communication

Detects TrevorC2 HTTP communication based on the HTTP request URI and the user-agent.

  • Effort: elementary

Event Categories

The following table lists the data source offered by this integration.

Data Source Description
Network device logs Meraki MX Security Appliance records traffic events flowing through
Web logs Meraki MX Security Appliance records traffic events flowing through

In details, the following table denotes the type of events produced by this integration.

Name Values
Kind ``
Category network
Type denied, info

Transformed Events Samples after Ingestion

This section demonstrates how the raw logs will be transformed by our parsers. It shows the extracted fields that will be available for use in the built-in detection rules and hunting activities in the events page. Understanding these transformations is essential for analysts to create effective detection mechanisms with custom detection rules and to leverage the full potential of the collected data.

{
    "message": "1673516966.834663913 FW_MX_01 events dhcp lease of ip 1.2.3.4 from mx mac AA:BB:CC:DD:EE:FF for client mac 01:02:03:04:05:06 from router 5.6.7.8 on subnet 255.255.255.0 with dns 9.10.11.12",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-12T09:49:26.834664Z",
    "cisco_meraki": {
        "event_subtype": "dhcp_offer"
    },
    "destination": {
        "mac": "AA:BB:CC:DD:EE:FF"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "mac": "01:02:03:04:05:06"
    }
}

{
    "message": "1673541902.311547724 FW_MX_01 events dhcp no offers for mac AA:BB:CC:DD:EE:FF",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-12T16:45:02.311548Z",
    "cisco_meraki": {
        "event_subtype": "dhcp_no_offer"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ]
    },
    "source": {
        "mac": "AA:BB:CC:DD:EE:FF"
    }
}

{
    "message": "1673596662.226844514 FW_MX_01 events type=anyconnect_vpn_auth_failure msg= 'RADIUS[373] Server IP=1.2.3.4 Server port=1812 Peer IP=5.6.7.8 Peer port=56735: Authentication request rejected. '",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "outcome": "failure",
        "type": [
            "denied"
        ]
    },
    "@timestamp": "2023-01-13T07:57:42.226845Z",
    "action": {
        "outcome": "failure",
        "outcome_reason": "Authentication request rejected. "
    },
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_auth_failure"
    },
    "destination": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 1812
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 56735
    }
}

{
    "message": "1673596676.426899545 FW_MX_01 events type=anyconnect_vpn_auth_success msg= 'RADIUS[374] Server IP=1.2.3.4 Server port=1812 Peer IP=5.6.7.8 Peer port=56735 User=john.doe: Authentication request accepted. '",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "outcome": "success",
        "type": [
            "allowed"
        ]
    },
    "@timestamp": "2023-01-13T07:57:56.426899Z",
    "action": {
        "outcome": "success",
        "outcome_reason": "Authentication request accepted. "
    },
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_auth_success"
    },
    "destination": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 1812
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ],
        "user": [
            "john.doe"
        ]
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 56735
    },
    "user": {
        "name": "john.doe"
    }
}

{
    "message": "1673614753.814828766 FW_MX_01 events anyconnect_vpn_connect user id 'john.doe@sekoia.io' local ip 1.2.3.4 reconnected from 5.6.7.8",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-13T12:59:13.814829Z",
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_connect"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ],
        "user": [
            "john.doe"
        ]
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "nat": {
            "ip": "1.2.3.4"
        }
    },
    "user": {
        "domain": "sekoia.io",
        "name": "john.doe"
    }
}

{
    "message": "1673614753.814828766 FW_MX_01 events anyconnect_vpn_connect user id 'john.doe@sekoia.io' local ip 1.2.3.4 connected from 5.6.7.8",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-13T12:59:13.814829Z",
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_connect"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ],
        "user": [
            "john.doe"
        ]
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "nat": {
            "ip": "1.2.3.4"
        }
    },
    "user": {
        "domain": "sekoia.io",
        "name": "john.doe"
    }
}

{
    "message": "1673516936.233050742 FW_MX_01 events type=anyconnect_vpn_connection_success msg= 'Server IP=1.2.3.4 Server port=443 Prot[TCP] Peer IP=5.6.7.8 Peer port=55760 conn_id[55356] Connection closed. '",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-12T09:48:56.233051Z",
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_connection_success"
    },
    "destination": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 443
    },
    "network": {
        "protocol": "TCP"
    },
    "observer": {
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        "ip": [
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    },
    "server": {
        "port": 443
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 55760
    }
}

{
    "message": "1673614757.517501781 FW_MX_01 events type=anyconnect_vpn_session_manager msg= 'Sess-ID[289] Peer IP=1.2.3.4 User[john.doe@sekoia.io]: Successfully added DTLS tunnel[289.4] '",
    "event": {
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        ],
        "dataset": "events",
        "type": [
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        ]
    },
    "@timestamp": "2023-01-13T12:59:17.517502Z",
    "cisco_meraki": {
        "end_of_message": "Successfully added DTLS tunnel[289.4] ",
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    },
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        "user": [
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    "user": {
        "domain": "sekoia.io",
        "name": "john.doe"
    }
}

{
    "message": "1673541348.531136002 FW_MX_01 events content_filtering_block url='https://docs.sekoia.io/...' server='1.2.3.4:443' client_mac='AA:BB:CC:DD:EE:FF'",
    "event": {
        "category": [
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        "dataset": "events",
        "outcome": "block",
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    "@timestamp": "2023-01-12T16:35:48.531136Z",
    "action": {
        "outcome": "block"
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    "cisco_meraki": {
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    "url": {
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        "registered_domain": "sekoia.io",
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        "subdomain": "docs",
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}

{
    "message": "1673277220.253011885 FW_MX_01 firewall src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443",
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        "category": [
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        "dataset": "firewall",
        "outcome": "allow",
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    "@timestamp": "2023-01-09T15:13:40.253012Z",
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}

{
    "message": "1673277220.253011885 FW_MX_01 firewall allow src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443",
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{
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{
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}

{
    "message": "1673277220.253011885 FW_MX_01 flows src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443",
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}

{
    "message": "1673277220.253011885 FW_MX_01 flows allow src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443",
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    "@timestamp": "2023-01-09T15:13:40.253012Z",
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    "network": {
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}

{
    "message": "1673277220.253011885 FW_MX_01 flows src=fe80:110:8897:efab:9202:b3ff:fe1e:8329 dst=fe80:110:8897:efab:9202:b3ff:fe1e:8330 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443",
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        "outcome": "allow",
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    "@timestamp": "2023-01-09T15:13:40.253012Z",
    "action": {
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        "ip": "fe80:110:8897:efab:9202:b3ff:fe1e:8330",
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{
    "message": "1673277244.954105815 FW_MX_01 flows src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543 pattern: 1 all",
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}

{
    "message": "1673277244.954105815 FW_MX_01 flows deny src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543",
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}

{
    "message": "1727862163.911654119 FW_MX_01 flows allow src=1.2.3.4 dst=5.6.7.8 mac=00:11:22:33:44:55 protocol=icmp6 type=136",
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        "dataset": "flows",
        "outcome": "allow",
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    "@timestamp": "2024-10-02T09:42:43.911654Z",
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}

{
    "message": "1673277245.252432409 FW_MX_01 ip_flow_end src=1.2.3.4 dst=5.6.7.8 protocol=udp sport=56391 dport=53 translated_dst_ip=9.10.11.12 translated_port=53",
    "event": {
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    "@timestamp": "2023-01-09T15:14:05.252432Z",
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}

{
    "message": "1673277245.262063982 FW_MX_01 ip_flow_start src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=64365 dport=443 translated_src_ip=9.10.11.12 translated_port=64365",
    "event": {
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    "@timestamp": "2023-01-09T15:14:05.262064Z",
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        "port": 64365
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}

{
    "message": "1673277245.257656306 FW_MX_01 urls src=1.2.3.4:51960 dst=5.6.7.8:443 mac=AA:BB:CC:DD:EE:FF request: UNKNOWN https://www.google.com/...",
    "event": {
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    "@timestamp": "2023-01-09T15:14:05.257656Z",
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        "registered_domain": "google.com",
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}

{
    "message": "1673277244.773622789 FW_MX_01 urls src=1.2.3.4:64194 dst=5.6.7.8:80 mac=AA:BB:CC:DD:EE:FF request: GET http://www.msftconnecttest.com/connecttest.txt",
    "event": {
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    "destination": {
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{
    "message": "1673277244.416181683 FW_MX_01 urls src=1.2.3.4:55566 dst=5.6.7.8:80 mac=AA:BB:CC:DD:EE:FF agent='Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36' request: GET http://docs.sekoia.io/xdr/features/collect/integrations/network/cisco_meraki/",
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        "original": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36",
        "os": {
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        "version": "108.0.0"
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{
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    },
    "source": {
        "address": "fe80:110:8897:efab:9202:b3ff:fe1e:8329",
        "ip": "fe80:110:8897:efab:9202:b3ff:fe1e:8329",
        "port": 64194
    },
    "url": {
        "domain": "www.msftconnecttest.com",
        "original": "http://www.msftconnecttest.com/connecttest.txt",
        "path": "/connecttest.txt",
        "port": 80,
        "registered_domain": "msftconnecttest.com",
        "scheme": "http",
        "subdomain": "www",
        "top_level_domain": "com"
    }
}

Extracted Fields

The following table lists the fields that are extracted, normalized under the ECS format, analyzed and indexed by the parser. It should be noted that infered fields are not listed.

Name Type Description
@timestamp date Date/time when the event originated.
cisco_meraki.end_of_message keyword Cisco Meraki end of message for some logs.
cisco_meraki.event_subtype keyword Cisco Meraki event subtype set in logs.
destination.ip ip IP address of the destination.
destination.mac keyword MAC address of the destination.
destination.nat.ip ip Destination NAT ip
destination.nat.port long Destination NAT Port
destination.port long Port of the destination.
event.category keyword Event category. The second categorization field in the hierarchy.
event.dataset keyword Name of the dataset.
event.type keyword Event type. The third categorization field in the hierarchy.
http.request.method keyword HTTP request method.
network.protocol keyword Application protocol name.
observer.hostname keyword Hostname of the observer.
server.port long Port of the server.
source.ip ip IP address of the source.
source.mac keyword MAC address of the source.
source.nat.ip ip Source NAT ip
source.nat.port long Source NAT port
source.port long Port of the source.
url.original wildcard Unmodified original url as seen in the event source.
user.domain keyword Name of the directory the user is a member of.
user.name keyword Short name or login of the user.
user_agent.original keyword Unparsed user_agent string.

For more information on the Intake Format, please find the code of the Parser, Smart Descriptions, and Supported Events here.

Further readings