User Activity Review Agent

The problem it solves

In any modern SOC, building a complete picture of what a user did over a given period is one of the repetitive, time-consuming tasks an analyst performs. Logon records sit in one report. File access lives in another. Failed authentications, system access, and triggered alerts are scattered across separate dashboards. Pulling them together into a single record can take hours of manual querying, filtering, and copy-pasting, even before the actual analysis begins.

The User Activity Review Agent helps reduce that overhead. It compiles a record of a user's authentication, access, and activity over a specified time window and presents it as a structured summary the analyst can review, initiate an incident from, or share with audit.

What this means for SecOps teams

Given a username and a time range, the User Activity Review Agent gathers and consolidates:

• Authentication events, including successful and failed logons across monitored systems
• Access activity, covering systems, applications, and resources the user interacted with
• File operations such as reads, writes, and modifications
• Privileged operations, including group membership changes, policy modifications, and elevated administrative actions
• Alerts and anomalies triggered by the user during the period under review

Each event class is queried from its respective source and brought together into a single report, so the analyst can review the user's activity in one place.

How to invoke it

The agent runs on demand from Ask Zia. To trigger the agent, select it inside Ask Zia and prompt it in plain language:

"Analyze activity for [username] over the last [time period]."

The agent runs the searches, builds the summary, and returns the result inline, ready for the analyst to review, ask probing questions, and investigate further if required.

Output

The agent returns a two-part response:

1. Activity Report A structured breakdown of the user's activity across the review period, organized by category such as logon activity, devices and network, file and object access, privileged operations, application logons, other notable events, and alerts. Each section presents the observed evidence along with an inline insight that flags patterns the analyst may want to look at more closely.

2. Assessment A consolidated view that summarizes the report:

• Observed Facts stating what the retrieved logs show
• Risk Indicators noting patterns that may warrant attention, with the reasoning behind them
• Recommendations suggesting follow-up steps, such as systems to validate or queries to retry

The report and the assessment together give the analyst a starting point for further review, an incident, or an audit response, without having to assemble the picture from scratch.