Synopsis
Activation Period |
14 Days |
Training Period |
30 Days |
Test Period |
1 Hour |
Deduplication Period |
1 Day |
Required Data |
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Detection Modules |
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Detector Tags |
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ATT&CK Tactic |
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ATT&CK Technique |
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Severity |
Informational |
Description
Multiple informational and low-severity alerts have combined to trigger an elevated alert.
Attacker's Goals
Trick recipients into revealing sensitive information, hijack the organization, or obtain money through deception.
Investigative actions
- Identify the specific emails responsible for the accumulation of low-severity alerts.
- Review their headers and content for patterns or anomalies.
- Assess the email's context and attack techniques to determine the primary risk factor driving the alert.
- Review the email headers and metadata of each flagged email to identify potential spoofing techniques or unusual routing patterns.
- Analyze any URLs or attachments in a secure sandbox environment to detect possible malware or phishing attempts.
- Correlate findings with recent low-severity alerts in the SIEM to assess whether similar accumulation patterns are forming.
- Engage potentially affected users to understand if any actions were taken in response to these emails, which could increase the overall risk.
- Document and escalate findings if the accumulation of low-severity warnings suggests a broader phishing campaign.