Skip to main content

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. 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. Currently, standard match lists are still supported, but we recommend you use schema tag keys going forward. 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 valuesWhen to use
adminDevices 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.
awsAdminDevices 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.
businessDevices supporting business processes. Can be used for things like SSH servers for SFTP file exchanges (similarly, FTP servers).
gcpAdminDevices 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.
googleWorkspaceAdminDevices 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.
salesforceAdminDevices 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.
sandboxMalware sandboxes or security devices interacting with malicious infrastructure.
scanTargetDestination 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 valuesWhen to use
dnsDNS caching resolvers/authoritative content servers. Can be used for source, destination, or other services.
ftpFTP servers.
smtpSMTP sending/receiving hosts.
sqlDatabase servers.
sshSSH servers.
telnetTelnet 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 valuesWhen to use
authServerNetwork authentication servers, including Active Directory, LDAP, Kerberos, RADIUS/TACACS, and NIS servers. May be used in analytics designed to detect DCSync attacks.
lanScannerDevices 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.
nmsNetwork 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.
paloAltoSinkholeIP 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.
proxyServerForward proxy servers, including HTTP and SOCKS proxies.
vpnServerVulnerability scanner and network mapping hosts.
vulnerabilityScannerVulnerability scanner and network mapping hosts. Devices engaged in actively scanning for Vulnerabilities on the network. These devices can be hosted internal or externally.
webServerHTTP servers.

_networkType

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

Tag valuesWhen to use
guestGuest WLAN and other guests/BYOD network addresses.
natSource 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.
vpnVPN/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 valuesWhen to use
awsAdminUsers 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.
dsReplicationAuthorized 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.
gcpAdminUsers 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.
googleWorkspaceAdminUsers 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.
kerberosDowngradeKnown 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.
salesforceAdminUsers 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

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 controllers.

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
  • Interactive Logon to Domain Controller
  • Password Attack
  • Successful Brute Force
  • 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

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

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

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
  • 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
  • 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
Legal
Privacy Statement
Terms of Use

Copyright © 2024 by Sumo Logic, Inc.