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AU-7

Audit Record Reduction and Report Generation

Audit and Accountability (AU)
Baselines
Low · Not includedModerate · IncludedHigh · Included
Description

Provide and implement an audit record reduction and report generation capability that: Supports on-demand audit record review, analysis, and reporting requirements and after-the-fact investigations of incidents; and Does not alter the original content or time ordering of audit records.

Discussion

Audit record reduction is a process that manipulates collected audit log information and organizes it into a summary format that is more meaningful to analysts. Audit record reduction and report generation capabilities do not always emanate from the same system or from the same organizational entities that conduct audit logging activities. The audit record reduction capability includes modern data mining techniques with advanced data filters to identify anomalous behavior in audit records. The report generation capability provided by the system can generate customizable reports. Time ordering of audit records can be an issue if the granularity of the timestamp in the record is insufficient.

Implementation guidance

No content available.

CSF 2.0 crosswalk
PR.PS-04Protect
RS.AN-03Analysis is performed to establish what has taken place during an incident and the root cause of the incidentRespond
RS.AN-06Actions performed during an investigation are recorded, and the records' integrity and provenance are preservedRespond
RS.AN-07Incident data and metadata are collected, and their integrity and provenance are preservedRespond