AIDE file-integrity digest, 2026-05-25 06:58 MDT — no changes

What happened

A system integrity check was executed on the ross-HP-Z230-SFF-Workstation, reporting zero filesystem changes since the baseline, confirming stable integrity. The check, which was classified as trace severity, failed during the summary phase because the process could not acquire a lock for the log file, resulting in a resource unavailability error. This failure is attributed to an operational constraint related to file locking mechanics, not filesystem modification. No adversarial activity or unauthorized file changes were detected during this traffic window.

Blue Team — Operational Summary

The system integrity check for ross-HP-Z230-SFF-Workstation, executed on 2026-05-25 at 06:58 MDT, reported zero filesystem changes since the baseline. This indicates a stable state with no modifications detected. The check itself was classified as trace severity. The process encountered a system error during the summary phase, specifically failing to acquire a lock for the log file '/var/log/aide/aide.log', resulting in a "Resource temporarily unavailable" error. Operationally, the filesystem state remains unchanged, and the primary finding is the integrity of the baseline is confirmed. The error is related to logging mechanics, not filesystem activity.

Red Team — Facts Only

* Source system: ross-HP-Z230-SFF-Workstation. * Time of event: 2026-05-25 06:58 MDT. * AIDE result: 0 total changes detected. * Specific changes: Added: 0, Removed: 0, Changed: 0. * Filesystem status: No filesystem changes since baseline. * AIDE summary error: cannot get lock for file '/var/log/aide/aide.log'. * Severity level: trace.

Purple Team — Pattern Analysis

The core finding is a system baseline integrity confirmation (zero changes), which is a clean operational signal. The only data point of interest is the error related to file locking during the AIDE execution. This error suggests a potential temporary contention issue within the system's logging or file management resources, rather than an indication of malicious activity or unauthorized file modification. Since no filesystem changes were detected, there is no current evidence of adversarial staging or compromise. The error itself is an operational artifact, likely due to transient resource exhaustion or timing issues during the digest process. The lack of change suggests system stability, meaning no immediate adversarial pattern is visible. For subsequent checks, focus monitoring on the file system lock mechanisms and resource availability during scheduled integrity scans, specifically tracking I/O wait times and lock acquisition latency to ensure operational stability.

Counter-Analyst

This report indicates zero filesystem changes, which suggests integrity is maintained, but the AIDE summary header failed with a resource lock error. Given that the core integrity check yielded no changes, why did the process fail to generate the summary log file, indicating a potential operational constraint or permission issue on the workstation? We need to determine if this lock failure points to a deeper issue beyond the filesystem integrity.