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Versa Networks

User and Entity Behavior Logs

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User and entity behavior analytics (UEBA) uses machine learning and advanced analytics to detect abnormal user activities in a network. Versa UEBA is a cloud service that provides a layer of security that enables your organization to monitor, detect, and respond to suspicious behaviors across your network infrastructure. Unlike security measures that focus on known attack signatures, UEBA continuously monitors and learns from user interactions, which helps security teams to identify anomalies in real-time and respond proactively to threats.

UEBA logs are exported to Analytics nodes by Versa messaging service (VMS) nodes. User entity score logs are exported to Analytics nodes by SASE gateways.

UEBA Logs

VMS exports UEBA logs when a UEBA application running in the cloud detects an anomalous event.

UEBA Log Message Format

2025-01-10T14:27:44+0000 uebaLog, applianceName=VMS1, tenantName=Provider-Org, 
userName=sse-demo-product-1@versa-networks.com, ucsScore=66, ucsBand="moderate-risk", 
uebaEventType=risky-countries, 
uebaDetails=”krbtestuser6@versa-networks.com access detected to/from IP 95.173.136.71:80 on application http in country RU. Rulename All-Profiles, Score: 66”

UEBA Log Message Fields

Log Type

uebaLog

applianceName

Name of the VMS appliance or instance that originated the log.

tenantName

Tenant or organization name.

username

User name.

ucsScore

User confidence score (UCS).

ucsBand

UCS band.

uebaEventType

Type of UEBA event.

uebaDetails

Details about why the UEBA event was triggered.

User Entity Confidence Score Logs

User entity confidence scores logs are sent by the SASE gateway when it receives notification of the device risk score for a user’s device from VMS.

 User Entity Confidence Score Log Message Format

2024-11-04T19:14:22+0000 userEcsLog, applianceName=GW-1, tenantName=Tenant1, applianceId=0, 
userName=Unknown, deviceName="PRIYA-WINDOWS", racAccessType=unknown, privateIP=1.1.1.1, 
publicIP=10.10.10.10, ecsScore=50, ecsBand=high-risk, ecsReason="Triggered by Malware", 
dataSource=CrowdStrike, dataSourceVersion=1.1, os="Windows", osVersion="10.0.1934.1", serialNum=X123456780A

User Entity Confidence Score Log Message Fields

Log Type

userEcsLog

applianceName

Name of the gateway handling the user's connection.

tenantName

Tenant or organization name.

applianceId

(Field not used.)

username

User name.

deviceName

Name of the user’s device.

racAccessType

Indicates whether the user accessed the network through remote access client type IPSEC or SSL.

privateIP

User device’s private IP address, used to connect to the gateway.

publicIP

User device’s public IP address, used to connect to the gateway.

ecsScore

User device’s entity confidence score (ECS).

ecsBand

User device’s entity confidence band. The confidence bands are:

  • High-risk
  • Low-risk
  • Moderate-risk
  • Suspicious
  • Trustworthy

ecsReason

Reason for the ECS value.

dataSource

Source of data used to determine the ECS.

os

OS running on the user’s device.

osVersion

Version of the OS running on the user's device.

serialNum

Serial number of the user’s device.

Supported Software

Releases 22.1.4 (Service Release dated 2025-02-08) and later support all content described in this article.

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