Email Security Agent

The Email Security Agent by Performanta functions as an autonomous security analyst, orchestrating the end-to-end investigation of email threats within your Microsoft Sentinel and Defender environments. By integrating directly with your specific Workspace and Tenant context, the agent automatically retrieves emails classified as "risky" or flagged by security systems. It then executes a concurrent deep-dive analysis, validating authentication headers (DKIM/SPF/DMARC) while simultaneously evaluating email body content for psychological triggers (such as urgency or greed) and unnatural linguistic patterns typical of Business Email Compromise (BEC).

Beyond internal analysis, the agent leverages Microsoft’s Global Threat Intelligence (DTI) to validate the reputation of all extracted URLs and domains. It synthesizes these internal and external findings to distinguish between benign anomalies and actual malicious activity, ensuring that security teams receive a validated assessment rather than just raw data. The final output maps observed behaviors to the MITRE ATT&CK framework, providing a standardized and actionable path to remediation.

Inputs:

• Microsoft Sentinel and Microsoft 365 email entities (filtered by risk score and timeframe).

• Microsoft Threat Intelligence (DTI) reputation data.

• Tenant-specific context (Workspace Name, Resource Group, Subscription ID).

Outputs:

• A comprehensive triage report containing a clear verdict (Benign, Suspicious, or Malicious) and a concise executive summary.

• MITRE ATT&CK technique mapping for all identified threats (e.g., T1566 Phishing).

• A prioritized, bulleted list of remediation actions (e.g., password resets, domain blocking).