Infoblox DDI

Overview

Infoblox DNS, DHCP and IP address management (DDI) enables customer to control and automate their network. It performs both of the main DNS server roles, acting as an authoritative name server for domains, and acting as a recursive resolver in the network.

The following Sekoia.io built-in rules match the intake Infoblox DDI. 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 Infoblox DDI on ATT&CK Navigator

Cryptomining

Detection of domain names potentially related to cryptomining activities.

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

Remote Access Tool Domain

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

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

Sliver DNS Beaconing

Detects suspicious DNS queries known from Sliver beaconing

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

Event Categories

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

Data Source	Description
`DNS records`	NIOS provides detailed logs on handled DNS queries

Event Samples

Find below few samples of events and how they are normalized by Sekoia.io.

query_log.jsonquery_log_category_prefix.jsonquery_log_cd.jsonquery_log_dnssec.jsonquery_log_edns_version.jsonquery_log_no_recursion.jsonquery_log_reverse.jsonquery_log_tcp.json

{
    "message": "client @0x7f62b80115d0 192.168.101.70#55575 (docs.sekoia.io): query: docs.sekoia.io IN AAAA + (192.168.100.102)",
    "dns": {
        "header_flags": [
            "RD"
        ],
        "question": {
            "class": "IN",
            "name": "docs.sekoia.io",
            "registered_domain": "sekoia.io",
            "subdomain": "docs",
            "top_level_domain": "io",
            "type": "AAAA"
        },
        "type": "query"
    },
    "related": {
        "hosts": [
            "docs.sekoia.io"
        ],
        "ip": [
            "192.168.101.70"
        ]
    },
    "source": {
        "address": "192.168.101.70",
        "ip": "192.168.101.70",
        "port": 55575
    }
}

{
    "message": "queries: client @0x7f62b80115d0 192.168.101.70#55575 (docs.sekoia.io): query: docs.sekoia.io IN AAAA + (192.168.100.102)",
    "dns": {
        "header_flags": [
            "RD"
        ],
        "question": {
            "class": "IN",
            "name": "docs.sekoia.io",
            "registered_domain": "sekoia.io",
            "subdomain": "docs",
            "top_level_domain": "io",
            "type": "AAAA"
        },
        "type": "query"
    },
    "infoblox": {
        "ddi": {
            "category": "queries"
        }
    },
    "related": {
        "hosts": [
            "docs.sekoia.io"
        ],
        "ip": [
            "192.168.101.70"
        ]
    },
    "source": {
        "address": "192.168.101.70",
        "ip": "192.168.101.70",
        "port": 55575
    }
}

{
    "message": "client 192.168.101.70#55575 (docs.sekoia.io): query: docs.sekoia.io IN AAAA +TC (192.168.100.102)",
    "dns": {
        "header_flags": [
            "CD",
            "RD"
        ],
        "question": {
            "class": "IN",
            "name": "docs.sekoia.io",
            "registered_domain": "sekoia.io",
            "subdomain": "docs",
            "top_level_domain": "io",
            "type": "AAAA"
        },
        "type": "query"
    },
    "network": {
        "transport": "tcp"
    },
    "related": {
        "hosts": [
            "docs.sekoia.io"
        ],
        "ip": [
            "192.168.101.70"
        ]
    },
    "source": {
        "address": "192.168.101.70",
        "ip": "192.168.101.70",
        "port": 55575
    }
}

{
    "message": "client 192.168.103.66#42811 (ipv6.google.com): query: ipv6.google.com IN A +EDC (192.168.100.102)",
    "dns": {
        "header_flags": [
            "CD",
            "RD"
        ],
        "question": {
            "class": "IN",
            "name": "ipv6.google.com",
            "registered_domain": "google.com",
            "subdomain": "ipv6",
            "top_level_domain": "com",
            "type": "A"
        },
        "type": "query"
    },
    "related": {
        "hosts": [
            "ipv6.google.com"
        ],
        "ip": [
            "192.168.103.66"
        ]
    },
    "source": {
        "address": "192.168.103.66",
        "ip": "192.168.103.66",
        "port": 42811
    }
}

{
    "message": "client @0x7f4f8003d9e0 192.168.101.61#38251 (global.vortex.data.trafficmanager.net): query: global.vortex.data.trafficmanager.net IN AAAA +E(0) (192.168.100.102)",
    "dns": {
        "header_flags": [
            "RD"
        ],
        "question": {
            "class": "IN",
            "name": "global.vortex.data.trafficmanager.net",
            "registered_domain": "trafficmanager.net",
            "subdomain": "global.vortex.data",
            "top_level_domain": "net",
            "type": "AAAA"
        },
        "type": "query"
    },
    "related": {
        "hosts": [
            "global.vortex.data.trafficmanager.net"
        ],
        "ip": [
            "192.168.101.61"
        ]
    },
    "source": {
        "address": "192.168.101.61",
        "ip": "192.168.101.61",
        "port": 38251
    }
}

{
    "message": "client 192.168.103.66#57980 (ipv6.google.com): query: ipv6.google.com IN AAAA - (192.168.100.102)",
    "dns": {
        "header_flags": [],
        "question": {
            "class": "IN",
            "name": "ipv6.google.com",
            "registered_domain": "google.com",
            "subdomain": "ipv6",
            "top_level_domain": "com",
            "type": "AAAA"
        },
        "type": "query"
    },
    "related": {
        "hosts": [
            "ipv6.google.com"
        ],
        "ip": [
            "192.168.103.66"
        ]
    },
    "source": {
        "address": "192.168.103.66",
        "ip": "192.168.103.66",
        "port": 57980
    }
}

{
    "message": "client 192.168.103.66#45041 (107.100.168.192.in-addr.arpa): query: 107.100.168.192.in-addr.arpa IN PTR +E (192.168.100.102)",
    "dns": {
        "header_flags": [
            "RD"
        ],
        "question": {
            "class": "IN",
            "name": "107.100.168.192.in-addr.arpa",
            "registered_domain": "192.in-addr.arpa",
            "subdomain": "107.100.168",
            "top_level_domain": "in-addr.arpa",
            "type": "PTR"
        },
        "type": "query"
    },
    "related": {
        "hosts": [
            "107.100.168.192.in-addr.arpa"
        ],
        "ip": [
            "192.168.103.66"
        ]
    },
    "source": {
        "address": "192.168.103.66",
        "ip": "192.168.103.66",
        "port": 45041
    }
}

{
    "message": "client 192.168.101.70#55575 (docs.sekoia.io): query: docs.sekoia.io IN AAAA +ET (192.168.100.102)",
    "dns": {
        "header_flags": [
            "RD"
        ],
        "question": {
            "class": "IN",
            "name": "docs.sekoia.io",
            "registered_domain": "sekoia.io",
            "subdomain": "docs",
            "top_level_domain": "io",
            "type": "AAAA"
        },
        "type": "query"
    },
    "network": {
        "transport": "tcp"
    },
    "related": {
        "hosts": [
            "docs.sekoia.io"
        ],
        "ip": [
            "192.168.101.70"
        ]
    },
    "source": {
        "address": "192.168.101.70",
        "ip": "192.168.101.70",
        "port": 55575
    }
}

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
`dns.header_flags`	`keyword`	Array of DNS header flags.
`dns.question.class`	`keyword`	The class of records being queried.
`dns.question.name`	`keyword`	The name being queried.
`dns.question.type`	`keyword`	The type of record being queried.
`dns.type`	`keyword`	The type of DNS event captured, query or answer.
`infoblox.ddi.category`	`keyword`	The logging category of this event.
`network.transport`	`keyword`	Protocol Name corresponding to the field `iana_number`.
`source.ip`	`ip`	IP address of the source.
`source.port`	`long`	Port of the source.

Configure

In this guide, you will configure the gateway to forward events to syslog.

Prerequisites

An internal syslog concentrator is required to collect and forward events to Sekoia.io.

Enable Syslog forwarding

Log on your NIOS appliance and follow this guide to enable syslog forwarding

Create the intake

Go to the intake page and create a new intake from the format Infoblox DDI.

Forward logs to Sekoia.io

Please consult the Syslog Forwarding documentation to forward these logs to Sekoia.io.