CSA (312-39) SOC Simulation Lab

In this scenario, you'll learn the critical distinction between the phases of the EC-Council Incident Handling and Response (IH&R) framework. You will identify exactly when an analyst determines if a fired alert is a legitimate threat or just noise.

Scenario Context

You are managing the SOC shift at PNP Infosystems Inc. An automated alert has just fired from your AWS WAF indicating a potential SQL Injection attack against your core payment API.

The SOAR platform automatically generates a ServiceNow incident ticket and assigns it to an incident handler named Mike. Before escalating the issue to the IR lead or mobilizing a containment strategy, Mike must first verify the telemetry.

Security Environment

Mike reviews the initial alert details populated in the SIEM and the ticketing system to perform his validation:

[ServiceNow] Time: 14:02:11 | Event: TICKET_CREATED | ID: INC-8441 | Sev: High | Title: WAF SQLi Detected [ServiceNow] Time: 14:02:15 | Event: TICKET_ASSIGNED | Assignee: Mike (L2 Analyst) [Splunk] index=waf sourcetype=aws:waf src_ip=10.0.5.55 uri="/api/v1/users?id=1' OR '1'='1" action=blocked [Splunk] index=asset_inventory ip=10.0.5.55 owner="DevSecOps_Scanner" environment="Internal_VLAN" Mike's Analysis Notes: "Payload detected is a standard SQLi test string. Source IP maps back to our internal Tenable Nessus scanner running its weekly scheduled scan. WAF correctly blocked the request. No successful exploitation occurred. Marking as False Positive / Authorized Scanning Activity."

Question

Mike is an incident handler for PNP Infosystems Inc. One day, there was a ticket raised regarding a critical incident and Mike was assigned to handle the incident. During the process of incident handling, at one stage, he has performed incident analysis and validation to check whether the incident is a true incident or a false positive. Identify the stage in which he is currently in.
SOC Hint: You might be tempted to pick "Triage," but in the EC-Council IH&R methodology, the initial step where the ticket is opened and the analyst asks "Is this real or a false positive?" happens *before* triage.