TR-C key terms
TR-C · Get comfortable with the vocabulary.
- Trellix ePolicy Orchestrator (ePO) server
- Related: Agent handler, System tree, Policy inheritance
Central management component that stores policy, agent handler settings, and event data in a database, and distributes configuration to managed endpoints through registered agents.
- Agent handler
- Related: Trellix ePolicy Orchestrator (ePO) server, Agent wake-up call
Optional ePO component placed on a separate server to distribute agent traffic and database load; agents can be assigned to a handler so remote sites do not route through the main server.
- Agent wake-up call
- Related: Agent handler, Policy inheritance
Signal sent from the ePO server to a managed endpoint that prompts the agent to check in immediately rather than waiting for its scheduled interval.
- System tree
- Related: Policy inheritance, Tag
Hierarchical container structure in ePO that organizes managed systems into groups and subgroups so that policies can be applied at the right scope.
- Policy inheritance
- Related: System tree, Policy assignment
Behavior in which a child group or system receives policy settings from a parent group unless a lower level breaks inheritance or defines an override.
- Policy assignment
- Related: Policy inheritance, System tree
Act of attaching a policy object to a system tree node or group so that the settings are enforced on the agents beneath that point.
- Tag
- Related: System tree, Query
Label applied to systems automatically by criteria or manually by an administrator, used to scope policy assignment and reporting to a subset of endpoints.
- Query
- Related: Dashboard, Tag
Saved database search in ePO that returns server or agent event data, such as detected threats or compliance status, and can feed dashboards and scheduled reports.
- Dashboard
- Related: Query, Event
Configurable ePO view that displays monitors built from queries, giving operators a live summary of threat, compliance, and product health status.
- Event
- Related: Query, Client task
Recorded occurrence sent by an agent or product to the ePO server, such as a detection, policy enforcement action, or client task result, stored for query and reporting.
- Client task
- Related: Event, Agent wake-up call
Server-defined action assigned to agents, such as an on-demand scan, product deployment, or update task, which runs on a schedule or on demand.
- Repository (DAT/engine source)
- Related: Global updating, Content package
Source location from which agents and products pull signature files, engines, and product packages; it can be the ePO server, a distributed repository, or an external source.
- Global updating
- Related: Repository (DAT/engine source), Content package
Feature that lets the ePO server pull content into its master repository on a schedule so agents can retrieve current signatures without direct internet access.
- Content package
- Related: Repository (DAT/engine source), Global updating
Signed bundle of detection signatures, engines, or product updates distributed through the repository hierarchy and applied by agents on managed systems.
- On-access scan
- Related: On-demand scan, Exclusion
Real-time scanning that inspects files when they are read, written, or executed, blocking or cleaning threats before the operation completes.
- On-demand scan
- Related: On-access scan, Client task
Scan started manually or by a client task that walks specified file system areas looking for malware without waiting for file access events.
- Exclusion
- Related: On-access scan, False positive
Configured rule that removes specified files, folders, processes, or file types from scanning to prevent performance problems or false positives on trusted software.
- False positive
- Related: Exclusion, Quarantine
Detection in which legitimate software is flagged as malicious; handling it requires verification, exclusion or restore, and often a signature correction from the vendor.
- Quarantine
- Related: False positive, Clean
Isolated storage location where detected malicious files are held so they cannot execute while administrators review, restore, or delete them.
- Clean (remediate)
- Related: Quarantine, On-access scan
Action that removes malicious code from an infected file and restores the file to a usable state, as opposed to deleting or quarantining it.
- Access protection
- Related: Exploit prevention, Exclusion
Rule set that blocks unauthorized modification of protected files, registry keys, and processes, helping prevent malware from disabling security software or persisting.
- Exploit prevention
- Related: Access protection, Behavioral analysis
Behavior-based protection that blocks techniques commonly used by exploits, such as process injection or return-oriented programming, regardless of whether a signature exists.
- Behavioral analysis
- Related: Exploit prevention, False positive
Detection method that observes runtime actions of processes and flags suspicious sequences, catching unknown or modified threats that signature matching would miss.
- Threat event
- Related: Event, Quarantine
Record generated when a detection or enforcement action occurs on an endpoint, carrying details such as threat name, action taken, and affected file or process.
- Role-based access control
- Related: Audit log, Permission set
ePO permission model that grants users only the actions and scopes tied to their assigned role, separating help desk, analyst, and administrator duties.
- Permission set
- Related: Role-based access control, Audit log
Collection of granted rights in ePO that defines which product features and system tree areas a user account or group may act upon.
- Audit log
- Related: Role-based access control, Permission set
Record of administrative and user actions in the management console, used to trace configuration changes and support compliance investigations.
- Server task
- Related: Global updating, Query
Scheduled job that runs on the ePO server itself, such as repository pulls, database purges, or report generation, independent of endpoint agents.
- Database maintenance (purge)
- Related: Server task, Event
Scheduled removal of old events and audit records from the ePO database to control size and keep server performance within supported limits.
- Agent-server communication interval (ASCI)
- Related: Agent handler, Agent wake-up call
Setting that controls how often a managed agent contacts its assigned handler or server to send events and collect policy and task updates.
- Fallback
- Related: Agent handler, Agent-server communication interval (ASCI)
Agent behavior of contacting an alternate handler or the main server when its primary handler is unreachable, preserving management continuity.
- Disaster recovery of the ePO server
- Related: Database maintenance (purge), Audit log
Practice of backing up the database and server configuration and restoring them to a rebuilt host so management, policy, and event history survive a failure.
- Compliance reporting
- Related: Query, Audit log
Use of queries and scheduled reports to demonstrate that endpoints meet required protection settings, patch levels, and policy states for auditors or regulators.
- Data retention policy
- Related: Database maintenance (purge), Compliance reporting
Rules defining how long event, audit, and threat data are kept before purge, balancing investigation needs against storage cost and privacy obligations.
- Product deployment task
- Related: Client task, Agent wake-up call
Client task that installs, upgrades, or removes a managed product on endpoints, often delivered with a wake-up call to start installation promptly.
- Troubleshooting agent check-in
- Related: Agent-server communication interval (ASCI), Fallback
Diagnostic process of verifying network reachability, certificate trust, handler assignment, and agent service state when a system stops reporting to the server.