Entity Tags and Standard Match Lists

This topic has information about how you can identify specific entities or indicators that should be treated differently during Cloud SIEM rule processing. For example, you might want to prevent a rule from firing for records that contain one of a certain set of IP addresses. Conversely, you might want to only fire a signal if a user entity belongs to a certain group, such as domain admins. There are currently two methods of achieving this sort of allowlist/denylist behavior:

Schema key tags for entities. This is the recommended approach. You simply apply predefined schema key tags to new entities once they come into Cloud SIEM. Then in a rule, you look for matches by extending a rule expression with the array_contains function, for example: array_contains(fieldTags["user_username"], "schema-key:schema-value"). See Schema tag keys for entities for information about which tag:value pairs to use for different entities.
tip
The most efficient way to assign tags to entities is to configure entity groups, and allow Cloud SIEM to automatically apply tags based on group membership.
Standard match lists. This is the original approach for excluding entities from rule processing. It involves adding entities to standard match lists, as described in Create a Match List. Then in a rule, you look for matches by extending a rule expression with the array_contains function, for example: array_contains(listMatches, 'match_list_name'). Standard match lists are described in Standard match lists below. When creating Standard match lists using the Cloud SIEM REST API, the expected target_column value is indicated in the entries below using parentheses, as in: "Target column: Source IP Address (SrcIp)."

Schema tag keys for entities

The keys and values described below are controlled by Sumo Logic. If you want to request additional tags or tag values, contact your Sumo Logic Customer Success Manager. You can also tag entities with custom tags–if you do that, you’ll need to update your custom rules or add rule tuning expression to out-of-the-box rules to reference your custom tags.

_deviceGroup

Assign the _deviceGroup tag to hosts involved with administrative or privileged activities. Select the appropriate tag value, based on the guidance in the table below.

Tag values	When to use
admin	Devices that are known to be involved with specific administrative or privileged activity on the network. Can be used for tracking devices that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.
awsAdmin	Devices that are known to be involved with specific administrative or privileged activity in AWS. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.
business	Devices supporting business processes. Can be used for things like SSH servers for SFTP file exchanges (similarly, FTP servers).
gcpAdmin	Devices that are known to be involved with specific administrative or privileged activity in GCP. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.
googleWorkspaceAdmin	Devices that are known to be involved with specific administrative or privileged activity in Google Workspace. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.
salesforceAdmin	Devices that are known to be involved with specific administrative or privileged activity in Salesforce. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.
sandbox	Malware sandboxes or security devices interacting with malicious infrastructure.
scanTarget	Destination networks that are authorized/standard targets of vulnerability scans in customer environments.

_deviceService

Assign the _deviceService tag to services running in your environment. Select the appropriate tag value, based on the guidance in the table below.

Tag values	When to use
dns	DNS caching resolvers/authoritative content servers. Can be used for source, destination, or other services.
ftp	FTP servers.
smtp	SMTP sending/receiving hosts.
sql	Database servers.
ssh	SSH servers.
telnet	Telnet servers.

_deviceType

Assign the _deviceType tag to devices running in your environment. Select the appropriate tag value, based on the guidance in the table below.

Tag values	When to use
authServer	Network authentication servers, including Active Directory, LDAP, Kerberos, RADIUS/TACACS, and NIS servers. May be used in analytics designed to detect DCSync attacks.
lanScanner	Devices excepted from analytics identifying Local Area Network (LAN) scanning activity. Used in specific cases to exclude hosts from flagging particular types of rule content, primarily around scanning of commonly targeted LAN service ports, etc. Not an across-the-board allowlist. This tag value is not intended for vulnerability scanners, which should be tagged with _deviceType=vulnerabilityScanner. Examples of devices that are suited for this tag value include telephony servers that push content to deployed softphones over SMB/CIFS and data security audit software that connect to SMB shares.
nms	Network Management Systems (NMS) that identify, configure, monitor, update, and troubleshoot network devices – both wired and wireless – in an enterprise network. Can be used as an exception tag value to block content relying on the evaluation of data per-host from applying to hosts that are translated or aggregations of other hosts.
paloAltoSinkhole	IP addresses for the sinkhole IP or IPs configured for Palo Alto DNS sinkhole. Use this tag value for the default IPv4 sinkhole address from PANW (72.5.65.111) any other sinkhole IP you have configured.
proxyServer	Forward proxy servers, including HTTP and SOCKS proxies.
vpnServer	Vulnerability scanner and network mapping hosts.
vulnerabilityScanner	Vulnerability scanner and network mapping hosts. Devices engaged in actively scanning for Vulnerabilities on the network. These devices can be hosted internal or externally.
webServer	HTTP servers.

_networkType

Assign the _networkType tag to network-related entities. Select the appropriate tag value, based on the guidance in the table below.

Tag values	When to use
guest	Guest WLAN and other guests/BYOD network addresses.
nat	Source NAT addresses. Can be used as an exception tag to block content relying on the evaluation of data per-host from applying to hosts that are translated or aggregations of other hosts. Note that this can also be achieved using _deviceType=proxyServer as an example of a specific case.
vpn	VPN/remote access user address pools and DHCP scopes.

_userGroup

Assign the _userGroup tag to users accounts known to be involved with specific administrative or privileged activities. Select the appropriate tag value, based on the guidance in the table below.

Tag values	When to use
awsAdmin	Users that are known to be involved with specific administrative or privileged activity in AWS. Can be used for tracking users that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.
dsReplication	Authorized account names to initiate Directory Service Replication requests to Active Directory. Use this tag value for account names confirmed in event_data['SubjectUserName'] for regularly occurring 4662 baseline events. This may be used in analytics designed to detect DCSync attacks.
gcpAdmin	Users that are known to be involved with specific administrative or privileged activity in GCP. Can be used for tracking users that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.
googleWorkspaceAdmin	Users that are known to be involved with specific administrative or privileged activity in Google Workspace. Can be used for tracking users that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.
kerberosDowngrade	Known account names that utilize downgraded encryption types with multiple SPNs. Use this tag value for Kerberos principal names (for example, jdoe@EXAMPLE.COM) matched in endpoint usernames that are known to trigger content around legacy downgraded encryption types. This is directly related to the detection of Kerberoasting attacks.
salesforceAdmin	Users that are known to be involved with specific administrative or privileged activity in Salesforce. Can be used for tracking users that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

Standard match lists

admin_accounts

Target column: Username (Username)

Description: Accounts that are known to be involved with specific administrative or privileged activity.

The following Cloud SIEM rules refer to this match list:

Windows - Excessive User Interactive Logons Across Multiple Hosts

admin_ips

Target column: Source IP Address (SrcIp)

Description: Hosts that are known to be involved with specific administrative or privileged activity on the network. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rules refer to this match list:

PowerShell Remote Administration
PsExec Admin Tool Detection
SMB write to admin hidden share

admin_username

Target column: Username (Username)

Description: Users that are known to be involved with specific administrative or privileged activity.

The following Cloud SIEM rules refer to this match list:

Lateral Movement Using the Windows Hidden Admin Share
Outlier in Data Outbound Per Day by Admin or Sensitive Device
Outlier in Data Outbound Per Hour by Admin or Sensitive Device

Alibaba_admin_ips

Target column: IP Address (Ip)

Description: IPs that are known to be involved with specific administrative or privileged activity on the network.

The following Cloud SIEM rules refer to this match list:

Alibaba ActionTrail KMS Activity

Alibaba_admin_users

Target column: Username (Username)

Description: Users that are known to be involved with specific administrative or privileged activity on the network.

The following Cloud SIEM rules refer to this match list:

Alibaba ActionTrail KMS Activity

auth_servers

Target column: IP Address (Ip)

Description: Network authentication servers, including Active Directory, LDAP, Kerberos, RADIUS/TACACS, and NIS servers. May be used in analytics designed to detect DCSync attacks.

The following Cloud SIEM rules refer to this match list:

DNS Lookup of High Entropy Domain

authorized_third_party_domains

Target column: Domain (Domain)

Description: Authorized third party domains.

The following Cloud SIEM rules refer to this match list:

Salesforce LoginAs Event

AWS_admin_ips

Target column: Source IP Address (SrcIp)

Description: Hosts that are known to be involved with specific administrative or privileged activity in AWS. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rules refer to this match list:

AWS Cloud Storage Deletion
AWS CloudTrail - Aggressive Reconnaissance
AWS CloudTrail - Database Snapshot Created
AWS CloudTrail - GetSecretValue from non Amazon IP
AWS CloudTrail - Reconnaissance related event
AWS CloudTrail - sensitive activity in KMS
AWS CloudWatch Alarm Actions Disabled
AWS CloudWatch Alarm Deletion
AWS CloudWatch Anomaly Detector Deletion
AWS CloudWatch Log Group Deletion
AWS CloudWatch Log Stream Deletion
AWS Config Recorder Deletion
AWS Config Recorder Stopped
AWS Config Service Tampering
AWS ECS Cluster Deleted
AWS Image Creation
AWS Image Deletion
AWS Image Discovery
AWS Image Modification
AWS Instance Creation
AWS Instance Deletion
AWS Instance Discovery
AWS Instance Modification
AWS Route 53 Domain Registered
AWS Route 53 Reconnaissance
AWS Route 53 Service Tampering
AWS Route 53 TestDNSAnswer
AWS Route 53 Traffic Policy Creation
AWS WAF Access Control List Updated
AWS WAF Reconnaissance
AWS WAF Rule Group Updated
AWS WAF Rule Updated
AWS WAF Service Tampering
Anomalous AWS User Executed a Command on ECS Container

AWS_admin_users

Target column: Username (Username)

Description: Users that are known to be involved with specific administrative or privileged activity in AWS. Can be used for tracking users that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rules refer to this match list:

AWS Cloud Storage Deletion
AWS CloudTrail - Aggressive Reconnaissance
AWS CloudTrail - Database Snapshot Created
AWS CloudTrail - Reconnaissance related event
AWS CloudTrail - sensitive activity in KMS
AWS CloudWatch Alarm Actions Disabled
AWS CloudWatch Alarm Deletion
AWS CloudWatch Anomaly Detector Deletion
AWS CloudWatch Log Group Deletion
AWS CloudWatch Log Stream Deletion
AWS Config Recorder Deletion
AWS Config Recorder Stopped
AWS Config Service Tampering
AWS ECS Cluster Deleted
AWS Image Creation
AWS Image Deletion
AWS Image Discovery
AWS Image Modification
AWS Instance Creation
AWS Instance Deletion
AWS Instance Discovery
AWS Instance Modification
AWS Route 53 Domain Registered
AWS Route 53 Reconnaissance
AWS Route 53 Service Tampering
AWS Route 53 TestDNSAnswer
AWS Route 53 Traffic Policy Creation
AWS WAF Access Control List Updated
AWS WAF Reconnaissance
AWS WAF Rule Group Updated
AWS WAF Rule Updated
AWS WAF Service Tampering
Anomalous AWS User Executed a Command on ECS Container
Spike in AWS API Call from User

business_asns

Target column: ASN (Asn)

Description: Remote ASNs supporting business processes.

The following Cloud SIEM rules refer to this match list:

Domain Resolution in Non-Standard TLD
Executable Downloaded - Content-Type Mismatch
HTTP Request to Domain in Non-Standard TLD
Threat Intel Match - IP Address
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL

business_domains

Target column: Domain (Domain)

Description: DNS domain names that are known business-related domains. This is intended to capture domains related to validated, expected, or critical business functions and may be used for allowlisting or filtering related uninteresting results from query result sets.

Domain matches against the domain field, not the FQDN (i.e. hostname or query), so example.com is a valid entry is but www.example.com is not.

The following Cloud SIEM rules refer to this match list:

Bitsadmin to Uncommon TLD
Connection to High Entropy Domain
DNS DGA Lookup Behavior - NXDOMAIN Responses
DNS Lookup of High Entropy Domain
DNS query for dynamic DNS provider
Domain Resolution in Non-Standard TLD
Executable Downloaded - Content-Type Mismatch
HTTP External Request to PowerShell Extension
HTTP Request to Domain in Non-Standard TLD
HTTP request for single character file name
Hexadecimal in DNS Query Domain
Possible DNS Data Exfiltration
Request to Anomalous Web Server Software
SSH Interesting Hostname Login
Script/CLI UserAgent string
Threat Intel Match - IP Address
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL

business_hostnames

Target column: Hostname (Hostname)

Description: DNS hostnames that are known to be business-related FQDNs.

The following Cloud SIEM rules refer to this match list:

Bitsadmin to Uncommon TLD
Connection to High Entropy Domain
DNS DGA Lookup Behavior - NXDOMAIN Responses
DNS Lookup of High Entropy Domain
DNS query for dynamic DNS provider
Domain Resolution in Non-Standard TLD
Executable Downloaded - Content-Type Mismatch
HTTP External Request to PowerShell Extension
HTTP Request to Domain in Non-Standard TLD
HTTP request for single character file name
Hexadecimal in DNS Query Domain
Possible DNS Data Exfiltration
Request to Anomalous Web Server Software
SSH Interesting Hostname Login
Script/CLI UserAgent string
Threat Intel Match - IP Address
VBS file downloaded from Internet
Web Request to Punycode Domain
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL

business_ips

Target column: IP Address (Ip)

Description: Remote IP addresses supporting business processes. Can be used for things like SSH servers for SFTP file exchanges (similarly, FTP servers).

The following Cloud SIEM rules refer to this match list:

Bitsadmin to Uncommon TLD
Connection to High Entropy Domain
Domain Resolution in Non-Standard TLD
Executable Downloaded - Content-Type Mismatch
HTTP External Request to PowerShell Extension
HTTP Request to Domain in Non-Standard TLD
Noncompliant Protocol Tunnel Over Common Service Port
Outbound Data Transfer Protocol Over Non-standard Port
Potential malicious JVM download
Request to Anomalous Web Server Software
SMB Internal to External traffic
SSH Interesting Hostname Login
Script/CLI UserAgent string
Threat Intel Match - IP Address
Web Request to IP Address
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL

dns_servers

Target column: IP Address (Ip)

Description: DNS caching resolvers/authoritative content servers in customer environments.

The following Cloud SIEM rules refer to this match list:

Direct Outbound DNS Traffic
Possible DNS over TLS (DoT) Activity
Too many empty/refused DNS queries

domain_controllers

Target column: IP Address (Ip)

Description: Domain controller IPs.

The following Cloud SIEM rules refer to this match list:

Brute Force Attempt
Domain Brute Force Attempt
Domain Password Attack
First Seen Anonymous Logon Change Activity to Domain Controller
Outlier in Data Outbound Per Day by Admin or Sensitive Device
Outlier in Data Outbound Per Hour by Admin or Sensitive Device
Password Attack
Spike in Login Failures from a User
Successful Brute Force

domain_controller_hostnames

Target column: Hostname (Hostname)

Description: Domain controller hostnames.

The following Cloud SIEM rules refer to this match list:

Interactive Logon to Domain Controller
Suspicious DC Logon

downgrade_krb5_etype_authorized_users

Target column: Username (Username)

Description: Known account names that utilize downgraded encryption types with multiple SPNs. This is an exception match list that should be populated with a list of Kerberos principal names (for example, jdoe@EXAMPLE.COM) matched in endpoint username that are known to trigger content around legacy downgraded encryption types. This is directly related to the detection of Kerberoasting attacks.

The following Cloud SIEM rules refer to this match list:

First Seen Kerberoasting Attempt from User - Global
First Seen Kerberoasting Attempt from User - Host
Too Many Kerberos Encryption Downgrade SPNs (Kerberoasting)

ds_replication_authorized_users

Target column: Username (Username)

Description: Authorized account names to initiate Directory Service Replication requests to Active Directory.

This should be populated with list of account names confirmed in event_data['SubjectUserName'] for regularly occurring 4662 baseline events. This may be used in analytics designed to detect DCsync attacks.

The following Cloud SIEM rules refer to this match list:

none

dyndns_exception_domains

Target column: Domain (Domain)

Description: Authorized domains.

The following Cloud SIEM rules refer to this match list:

Connection to High Entropy Domain
DNS query for dynamic DNS provider
HTTP request for single character file name
Possible DNS Data Exfiltration

dyndns_exception_hostnames

Target column: Hostname (Hostname)

Description: Authorized hostnames.

The following Cloud SIEM rules refer to this match list:

Connection to High Entropy Domain
DNS query for dynamic DNS provider
HTTP request for single character file name
Possible DNS Data Exfiltration

ftp_servers

Target column: IP Address (Ip)

Description: Known FTP servers.

The following Cloud SIEM rules refer to this match list:

none

gcp_admin

Target column: Username (Username) or Source IP Address (SrcIp)

Description: Users or hosts that are known to be involved with specific administrative or privileged activity in GCP. Can be used for tracking users or hosts that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rules refer to this match list:

GCP Audit Cloud SQL Database Modified
GCP Audit GCE Firewall Rule Modified
GCP Audit GCE Network Route Created or Modified
GCP Audit GCE VPC Network Modified
GCP Audit IAM CreateServiceAccount Observed
GCP Audit IAM Custom Role Created or Modified
GCP Audit IAM Custom Role Deletion
GCP Audit IAM DeleteServiceAccount Observed
GCP Audit IAM DisableServiceAccount Observed
GCP Audit KMS Activity
GCP Audit Logging Sink Modified
GCP Audit Pub/Sub Subscriber Modified
GCP Audit Pub/Sub Topic Deleted
GCP Audit Secrets Manager Activity
GCP Bucket Modified

GCP_admin_ips

Target column: Source IP Address (SrcIp)

Description: Hosts that are known to be involved with specific administrative or privileged activity in GCP. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rules refer to this match list:

GCP Image Creation
GCP Image Deletion
GCP Image Discovery
GCP Image Modification
GCP Instance Creation
GCP Instance Deletion
GCP Instance Discovery
GCP Instance Modification

GCP_admin_users

Target column: Username (Username)

Description: Users that are known to be involved with specific administrative or privileged activity in GCP. Can be used for tracking users that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rules refer to this match list:

GCP Image Creation
GCP Image Deletion
GCP Image Discovery
GCP Image Modification
GCP Instance Creation
GCP Instance Deletion
GCP Instance Discovery
GCP Instance Modification

Google_Workspace_admin_ips

Target column: Source IP Address (SrcIp)

Description: Hosts that are known to be involved with specific administrative or privileged activity in Google Workspace. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rule refers to this match list:

G Suite - Admin Activity

Google_Workspace_admin_users

Target column: Username (Username)

Description: Users that are known to be involved with specific administrative or privileged activity in Google Workspace. Can be used for tracking users that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rule refers to this match list:

G Suite - Admin Activity

guest_networks

Target column: IP Address (Ip)

Description: Known guest WLAN and other guests/BYOD network addresses.

The following Cloud SIEM rules refer to this match list:

Base32 in DNS Query
Bitsadmin to Uncommon TLD
Connection to High Entropy Domain
DNS DGA Lookup Behavior - NXDOMAIN Responses
DNS Lookup of High Entropy Domain
DNS query for dynamic DNS provider
Domain Resolution in Non-Standard TLD
Executable Downloaded - Content-Type Mismatch
HTTP Request to Domain in Non-Standard TLD
HTTP request for single character file name
Hexadecimal in DNS Query Domain
Noncompliant Protocol Tunnel Over Common Service Port
Possible DNS Data Exfiltration
Possible DNS over TLS (DoT) Activity
RDP Error Messages
SMB write to hidden admin share
SQL Injection Attacker
SQL Injection Victim
SQL-Select-From
SSH Interesting Hostname Login
Script/CLI UserAgent string
Web Request to IP Address
Web Request to Punycode Domain

honeypot_ip_addresses

Target column: IP Address (Ip)

Description: List of IPs for Honeypots.

The following Cloud SIEM rules refer to this match list:

Traffic to Honeypot IP

http_servers

Target column: IP Address (Ip)

Description: Web servers in your environment.

The following Cloud SIEM rules refer to this match list:

Spike in URL Length from IP Address

lan_scanner_exception_ips

Target column: IP Address (Ip)

Description: IP addresses excepted from analytics identifying LAN protocol scanning activity. Used in specific cases to exclude hosts from flagging particular types of rule content, primarily around scanning of commonly targeted LAN service ports, etc. Not an across-the-board allowlist. This match list is not intended for vulnerability scanners, which should be listed instead in vuln scanners.

Examples of hosts that are suited for this match list:

Telephony server that pushes content to deployed softphones over SMB/CIFS
Data security audit software that connects to SMB shares

The following Cloud SIEM rules refer to this match list:

Amazon VPC - Network Scan
Amazon VPC - Port Scan
Excessive Outbound Firewall Blocks
GCP Port Scan
GCP Port Sweep
IP Address Scan - Internal
Internal Port Scan
Internal Port Sweep
Port Scan - Internal
SMB Scanning Detected
SSH Authentication Failures
SSL Certificate Expired
Suspicious HTTP User-Agent
Traffic to Honeypot IP

nat_ips

Target column: IP Address (Ip)

Description: Source NAT addresses. Can be used as an exception match list to block content relying on the evaluation of data per-host from applying to hosts that are translated or aggregations of other hosts. Note that this can also be applied using proxy_servers as an example of a specific case.

The following Cloud SIEM rules refer to this match list:

DNS DGA Lookup Behavior - NXDOMAIN Responses

nms_ips

Target column: IP Address (Ip)

Description:

Hosts known to be Network Management System (NMS) nodes.

Can be used as an exception match list for systems that connect to other hosts in environment for purposes of management, monitoring, and so on.

The following Cloud SIEM rules refer to this match list:

Amazon VPC - Network Scan
Amazon VPC - Port Scan
GCP Port Scan
GCP Port Sweep
IP Address Scan - Internal
Internal Port Scan
Internal Port Sweep
Port Scan - Internal
Traffic to Honeypot IP

Okta_Admins

Target column: Username (Username)

Description: Users that are known to be involved with specific administrative or privileged activity.

The following Cloud SIEM rules refer to this match list:

Okta Admin App Accessed

palo_alto_sinkhole_ips

Target column: IP Address (Ip)

Description: IP addresses for the sinkhole IP or IPs configured for Palo Alto DNS sinkhole.

Should contain the default IPv4 sinkhole address from PANW (72.5.65.111) and should include additionally any other sinkhole IP you have configured.

The following Cloud SIEM rules refer to this match list:

None

proxy_servers

Target column: IP Address (Ip)

Description: Forward proxy servers, including HTTP and SOCKS proxies.

The following Cloud SIEM rules refer to this match list:

Amazon VPC - Network Scan
Amazon VPC - Port Scan
DNS DGA Lookup Behavior - NXDOMAIN Responses
GCP Port Scan
GCP Port Sweep
HTTP Response Error Spike - Internal
IP Address Scan - Internal
Internal Port Scan
Internal Port Sweep
Port Scan - Internal
Possible DNS Data Exfiltration

proxy_servers_dst

Target column: Destination IP Address (DstIp)

Description: Copy of the proxy_servers match list for directional matches.

The following Cloud SIEM rules refer to this match list:

Bitsadmin to Uncommon TLD
Excessive Outbound Firewall Blocks
Executable Downloaded - Content-Type Mismatch
GitHub Raw URL Resource Request
HTTP External Request to PowerShell Extension
HTTP Request with Single Header
HTTP Shell Script Download Disguised as a Common Web File
HTTP request for single character file name
High risk file extension download without hostname and referrer
Large File Upload
Large Outbound ICMP Packets
Noncompliant Protocol Tunnel Over Common Service Port
Outbound Data Transfer Protocol Over Non-standard Port
Outbound IRC Traffic
Outbound TFTP Traffic
Pastebin Raw URL Resource Request
Possible DNS over TLS (DoT) Activity
Request to Anomalous Web Server Software
SMB Internal to External traffic
Self-signed Certificates
Suspicious Typical Malware Back Connect Ports
VBS file downloaded from Internet
Web Request to IP Address
Web Request to Punycode Domain

proxy_servers_src

Target column: Source IP Address (SrcIp)

Description: Copy of the proxy_server match list for directional matches.

The following Cloud SIEM rules refer to this match list:

none

public_ips

Target column: IP Address (Ip)

Description: Public Ip Addresses.

The following Cloud SIEM rules refer to this match list:

Doublepulsar scan - likely not infected
Likely doublepulsar Infected

salesforce_admin_ips

Target column: Source IP Address (SrcIp)

Description: Hosts that are known to be involved with specific administrative or privileged activity in Salesforce. Can be used for tracking hosts that are operated by admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rules refer to this match list:

Salesforce Custom Permission Creation
Salesforce Excessive Documents Downloaded
Salesforce LoginAs Event
Salesforce Permission Set Addition
Salesforce Permission Set Assigned
Salesforce Permission Set Creation
Salesforce Permission Set Deletion
Salesforce Permission Set Modification
Salesforce Report Exported
Salesforce Role Creation
Salesforce User Creation
Salesforce User Role Changed
Salesforce WaveDownload Event

salesforce_admin_users

Target column: Username (Username)

Description: Users that are known to be involved with specific administrative or privileged activity in Salesforce. Can be used for tracking users that are admins and other privileged users, or are often the source of restricted, privileged or suspicious authorized actions, and so on. This sort of tracking is useful for baselining activity and as a result, surfacing more suspicious activity.

The following Cloud SIEM rules refer to this match list:

Salesforce Custom Permission Creation
Salesforce Excessive Documents Downloaded
Salesforce LoginAs Event
Salesforce Permission Set Addition
Salesforce Permission Set Assigned
Salesforce Permission Set Creation
Salesforce Permission Set Deletion
Salesforce Permission Set Modification
Salesforce Report Exported
Salesforce Role Creation
Salesforce User Creation
Salesforce User Role Changed
Salesforce WaveDownload Event

sandbox_ips

Target column: IP Address (Ip)

Description: Malware sandboxes or security devices interacting with malicious infrastructure.

The following Cloud SIEM rules refer to this match list:

Threat Intel Match - IP Address
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL

scanner_targets

Target column: IP Address (Ip)

Description: Destination networks that are authorized/standard targets of vulnerability scans in customer environment.

The following Cloud SIEM rules refer to this match list:

none

smtp_servers

Target column: IP Address (Ip)

Description: SMTP sending/receiving hosts in customer environment.

The following Cloud SIEM rules refer to this match list:

none

sql_servers

Target column: IP Address (Ip)

Description: Database servers in customer environment.

The following Cloud SIEM rules refer to this match list:

none

ssh_servers

Target column: IP Address (Ip)

Description: Known SSH servers.

The following Cloud SIEM rules refer to this match list:

none

ssl_exception_ips

Target column: IP Address (Ip)

Description: SSL exception IPs.

The following Cloud SIEM rules refer to this match list:

SSL Certificate Expired
SSL Certificate Expires Soon
SSL Certificate Not Valid Yet
SSL Invalid Server Cert

telnet_servers

Target column: IP Address (Ip)

Description: Telnet servers in your environment.

The following Cloud SIEM rules refer to this match list:

none

threat

Target column: IP Address (Ip)

Description: A record flagged an IP address from a threat intelligence match list.

The following Cloud SIEM rules refer to this match list:

Threat Intel - Successful Authentication from Threat IP
Threat Intel Match - IP Address
Threat Intel - Inbound Traffic Context
Threat Intel - Matched File Hash
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL

unauthorized_external_media

Target column: Hostname (Hostname)

Description: A list of devices that should not have external media installed on them.

The following Cloud SIEM rules refer to this match list:

Unauthorized External Device Installation

verified_applications

Target column: Application (Custom)

Description: Reviewed and validated legitimate or non-threat applications.

The following Cloud SIEM rules refer to this match list:

Lateral Movement Using the Windows Hidden Admin Share

verified_domains

Target column: Domain (Domain)

Description: Reviewed and validated legitimate or non-threat domains.

The following Cloud SIEM rules refer to this match list:

Base32 in DNS Query
Bitsadmin to Uncommon TLD
Connection to High Entropy Domain
DNS Lookup of High Entropy Domain
DNS query for dynamic DNS provider
Domain Resolution in Non-Standard TLD
Executable Downloaded - Content-Type Mismatch
HTTP External Request to PowerShell Extension
HTTP Request to Domain in Non-Standard TLD
HTTP request for single character file name
Hexadecimal in DNS Query Domain
Possible DNS Data Exfiltration
Request to Anomalous Web Server Software
SSH Interesting Hostname Login
Script/CLI UserAgent string
Threat Intel Match - IP Address
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL

verified_hostnames

Target column: Hostname (Hostname)

Description: Reviewed and validated legitimate or non-threat hostnames.

The following Cloud SIEM rules refer to this match list:

Bitsadmin to Uncommon TLD
Connection to High Entropy Domain
DNS Lookup of High Entropy Domain
DNS query for dynamic DNS provider
Domain Resolution in Non-Standard TLD
Executable Downloaded - Content-Type Mismatch
HTTP External Request to PowerShell Extension
HTTP Request to Domain in Non-Standard TLD
HTTP request for single character file name
Hexadecimal in DNS Query Domain
Possible DNS Data Exfiltration
Request to Anomalous Web Server Software
SSH Interesting Hostname Login
Script/CLI UserAgent string
Threat Intel Match - IP Address
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL
Web Request to Punycode Domain

verified_ips

Target column: IP Address (Ip)

Description: Reviewed and validated legitimate or non-threat ips.

The following Cloud SIEM rules refer to this match list:

Domain Resolution in Non-Standard TLD
HTTP Request to Domain in Non-Standard TLD
Threat Intel Match - IP Address
Threat Intel - Matched Domain Name
Threat Intel - Device IP Matched Threat Intel Domain Name
Threat Intel - Device IP Matched Threat Intel URL
Web Request to IP Address

verified_uri_ips

Target column: IP Address (Ip)

Description: Reviewed and validated legitimate or non-threat IP addresses.

The following Cloud SIEM rules refer to this match list:

Executable Downloaded - Content-Type Mismatch

verified_uri_paths

Target column: HttpUrlPath (Custom)

Description: Reviewed and validated legitimate or non-threat IP addresses.

This is a shared match list that should be imported into target environments.

Match list items have a TTL specified that will result in the items having an expiration date set in the future.

The following Cloud SIEM rules refer to this match list:

Executable Downloaded - Content-Type Mismatch
HTTP Request to Domain in Non-Standard TLD

vpn_networks

Target column: IP Address (Ip)

Description: VPN/remote access user address pools and DHCP scopes.

The following Cloud SIEM rules refer to this match list:

none

vpn_servers

Target column: IP Address (Ip)

Description: VPN/remote access servers, including IKE/IPsec/SSL VPN concentrators, OpenVPN endpoints, and so on.

The following Cloud SIEM rules refer to this match list:

none

vuln_scanners

Target column: IP Address (Ip)

Description: Vulnerability scanner and network mapping hosts.

The following Cloud SIEM rules refer to this match list:

Amazon VPC - Network Scan
Amazon VPC - Port Scan
Base32 in DNS Query
Bitsadmin to Uncommon TLD
Brute Force Attempt
Connection to High Entropy Domain
Critical Severity Intrusion Signature
DNS DGA Lookup Behavior - NXDOMAIN Responses
DNS Lookup of High Entropy Domain
DNS query for dynamic DNS provider
Directory Traversal - Successful
Directory Traversal - Unsuccessful
Domain Brute Force Attempt
Domain Password Attack
Domain Resolution in Non-Standard TLD
Doublepulsar scan - likely not infected
Excessive Outbound Firewall Blocks
Executable Downloaded - Content-Type Mismatch
GCP Port Scan
GCP Port Sweep
HTTP Request to Domain in Non-Standard TLD
HTTP Request with Single Header
HTTP request for single character file name
Hexadecimal in DNS Query Domain
High Severity Intrusion Signature
IP Address Scan - Internal
Informational Severity Intrusion Signature
Internal Communication on Unassigned Low Ports - Destination Match
Internal Port Scan
Internal Port Sweep
Intrusion Scan - Targeted
Intrusion Sweep
Likely doublepulsar Infected
Low Severity Intrusion Signature
Medium Severity Intrusion Signature
Noncompliant Protocol Tunnel Over Common Service Port
Password Attack
Port Scan - Internal
Possible DNS Data Exfiltration
RDP Error Messages
SMB Scanning Detected
SMB write to hidden admin share
SQL Injection Attacker
SQL Injection Victim
SQL-Select-From
SSH Authentication Failures
SSH Interesting Hostname Login
SSL Certificate Expired
SSL Heartbleed Attack
Script/CLI UserAgent string
Shellshock
Spike in Login Failures from a User
Spring4Shell Exploitation - URL
Successful Brute Force
Suspicious HTTP User-Agent
Traffic to Honeypot IP

web_servers

Target column: Hostname (Hostname) or IP Address (Ip)

Description: List of webserver hostnames or IPs.

The following Cloud SIEM rules refer to this match list:

Web Servers Executing Suspicious Processes

zoom_admins

Target column: Username (Username)

Description: Known admin users of Zoom.

The following Cloud SIEM rules refer to this match list:

Zoom - Account Created
Zoom - Account Deleted
Zoom - Group Admin Added
Zoom - Group Admin Deleted
Zoom - Group Changes
Zoom - Information Barrier Policy Changes

Schema tag keys for entities​

_deviceGroup​

_deviceService​

_deviceType​

_networkType​

_userGroup​

Standard match lists​

admin_accounts​

admin_ips​

admin_username​

Alibaba_admin_ips​

Alibaba_admin_users​

auth_servers​

authorized_third_party_domains​

AWS_admin_ips​

AWS_admin_users​

business_asns​

business_domains​

business_hostnames​

business_ips​

dns_servers​

domain_controllers​

domain_controller_hostnames​

downgrade_krb5_etype_authorized_users​

ds_replication_authorized_users​

dyndns_exception_domains​

dyndns_exception_hostnames​

ftp_servers​

gcp_admin​

GCP_admin_ips​

GCP_admin_users​

Google_Workspace_admin_ips​

Google_Workspace_admin_users​

guest_networks​

honeypot_ip_addresses​

http_servers​

lan_scanner_exception_ips​

nat_ips​

nms_ips​

Okta_Admins​

palo_alto_sinkhole_ips​

proxy_servers​

proxy_servers_dst​

proxy_servers_src​

public_ips​

salesforce_admin_ips​

salesforce_admin_users​

sandbox_ips​

scanner_targets​

smtp_servers​

sql_servers​

ssh_servers​

ssl_exception_ips​

telnet_servers​

threat​

unauthorized_external_media​

verified_applications​

verified_domains​

verified_hostnames​

verified_ips​

verified_uri_ips​

verified_uri_paths​

vpn_networks​

vpn_servers​

vuln_scanners​

web_servers​

zoom_admins​

Schema tag keys for entities

_deviceGroup

_deviceService

_deviceType

_networkType

_userGroup

Standard match lists

admin_accounts

admin_ips

admin_username

Alibaba_admin_ips

Alibaba_admin_users

auth_servers

authorized_third_party_domains

AWS_admin_ips

AWS_admin_users

business_asns

business_domains

business_hostnames

business_ips

dns_servers

domain_controllers

domain_controller_hostnames

downgrade_krb5_etype_authorized_users

ds_replication_authorized_users

dyndns_exception_domains

dyndns_exception_hostnames

ftp_servers

gcp_admin

GCP_admin_ips

GCP_admin_users

Google_Workspace_admin_ips

Google_Workspace_admin_users

guest_networks

honeypot_ip_addresses

http_servers

lan_scanner_exception_ips

nat_ips

nms_ips

Okta_Admins

palo_alto_sinkhole_ips

proxy_servers

proxy_servers_dst

proxy_servers_src

public_ips

salesforce_admin_ips

salesforce_admin_users

sandbox_ips

scanner_targets

smtp_servers

sql_servers

ssh_servers

ssl_exception_ips

telnet_servers

threat

unauthorized_external_media

verified_applications

verified_domains

verified_hostnames

verified_ips

verified_uri_ips

verified_uri_paths

vpn_networks

vpn_servers

vuln_scanners

web_servers

zoom_admins