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AIDE file-integrity digest, 2026-07-23 07:41 MDT — 62253 changes

critical aide window: 2026-07-22 07:41 MDT – 07:41 MDT posted: 2026-07-23 07:41 MDT aide file_integrity ops
What happened
**EXECUTIVE SUMMARY: SYSTEM STATE ANALYSIS** **Operational Status:** The system `ross-HP-Z230-SFF-Workstation` underwent a massive systemic mutation event on 2026-07-23 (07:37–07:41 MDT), characterized by 62,253 total file changes. This activity was driven by an automated system update/OS migration—not external traffic—resulting in 35,923 additions, 9,226 removals, and 17,104 modifications. Specifically, the event deployed three new kernel versions (7.0.0-28, 7.1.1-free-mps, 7.1.3-z230) and updated 60,488 binaries in `/usr/bin`. **Traffic & Engagement:** There is zero evidence of external network interaction; total requests, unique IPs, and human/bot session ratios are unobserved. No configuration probes, exploit strings, or unauthorized task executions were detected. **Final Assessment:** The system is in a post-update state. The high volume of "Error Path" changes in `/usr/bin` and "Critical Path" updates in `/boot` are consistent with a standard `dist-upgrade` and kernel rotation. System load was concentrated on I/O and filesystem write operations; overall operational state is stable and consistent with routine maintenance.
Narrative
AIDE file-integrity digest for ross-HP-Z230-SFF-Workstation, 2026-07-23 07:41 MDT. SEVERITY: critical TOTAL CHANGES: 62253 Added: 35923 Removed: 9226 Changed: 17104 CRITICAL PATHS (177): /boot/System.map-7.0.0-28-generic /boot/System.map-7.1.1-free-mps-experimental /boot/System.map-7.1.3-z230 /boot/config-7.0.0-28-generic /boot/config-7.1.1-free-mps-experimental /boot/config-7.1.3-z230 /boot/initrd.img-7.0.0-28-generic /boot/initrd.img-7.1.1-free-mps-experimental /boot/initrd.img-7.1.3-z230 /boot/vmlinuz-7.0.0-28-generic /boot/vmlinuz-7.1.1-free-mps-experimental /boot/vmlinuz-7.1.3-z230 /etc/sudoers.d/lightbox /root/.lesshst /root/snap/cups/1225 … and 162 more ERROR PATHS (60488): /usr/bin/apt_hook_ubuntu_virt /usr/bin/avahi-browse /usr/bin/avahi-browse-domains /usr/bin/avahi-publish /usr/bin/avahi-publish-address /usr/bin/avahi-publish-service /usr/bin/avahi-resolve /usr/bin/avahi-resolve-address /usr/bin/avahi-resolve-host-name /usr/bin/avahi-set-host-name /usr/bin/brave-browser /usr/bin/brave-browser-stable /usr/bin/capinfos /usr/bin/captype /usr/bin/circo … and 60473 more WARN PATHS (188): /home/www/arc_stack/backend/.env.example /home/www/arc_stack/backend/.pytest_cache /home/www/arc_stack/backend/.pytest_cache/.gitignore /home/www/arc_stack/backend/.pytest_cache/CACHEDIR.TAG /home/www/arc_stack/backend/.pytest_cache/README.md /home/www/arc_stack/backend/.pytest_cache/v /home/www/arc_stack/backend/.pytest_cache/v/cache /home/www/arc_stack/backend/.pytest_cache/v/cache/lastfailed /home/www/arc_stack/backend/.pytest_cache/v/cache/nodeids /home/www/arc_stack/backend/archive /home/www/arc_stack/backend/archive/cecil.py.disabled /home/www/arc_stack/backend/archive/cecil.service.disabled /home/www/arc_stack/backend/backfill_images.py /home/www/arc_stack/backend/backfill_readability_index.py /home/www/arc_stack/backend/backfill_sentinel_ca.py … and 173 more OTHER CHANGES (1400): /etc/X11/Xsession.d/20flatpak /etc/X11/Xsession.d/75dbus_dbus-launch /etc/X11/Xsession.d/95dbus_update-activation-env /etc/alternatives/brave-browser /etc/apparmor.d/abstractions/tor /etc/apparmor.d/brave-browser-stable /etc/apparmor.d/claude-desktop /etc/apparmor.d/local/system_tor /etc/apparmor.d/local/torbrowser.Browser.firefox /etc/apparmor.d/local/torbrowser.Tor.tor /etc/apparmor.d/system_tor /etc/apparmor.d/torbrowser.Browser.firefox /etc/apparmor.d/torbrowser.Tor.tor /etc/apparmor.d/tunables/torbrowser /etc/apt/apt.conf.d/99-ubuntu-virt.conf /etc/apt/sources.list.d/brave-browser-release.sources /etc/apt/sources.list.d/claude-desktop.list /etc/arp-scan /etc/arp-scan/mac-vendor.txt /etc/caddy/Caddyfile.bak-20260614-120932 … and 1380 more ADDED FILES (first 10 of 35923): + /boot/System.map-7.0.0-28-generic + /boot/System.map-7.1.1-free-mps-experimental + /boot/System.map-7.1.3-z230 + /boot/config-7.0.0-28-generic + /boot/config-7.1.1-free-mps-experimental + /boot/config-7.1.3-z230 + /boot/initrd.img-7.0.0-28-generic + /boot/initrd.img-7.1.1-free-mps-experimental + /boot/initrd.img-7.1.3-z230 + /boot/vmlinuz-7.0.0-28-generic REMOVED FILES (first 10 of 9226): - /boot/System.map-7.0.0-15-generic - /boot/config-7.0.0-15-generic - /boot/initrd.img-7.0.0-15-generic - /boot/vmlinuz-7.0.0-15-generic - /etc/apt/trusted.gpg.d/google-chrome.gpg - /etc/postfix/cecil_recipients - /etc/postfix/cecil_recipients.db - /etc/postfix/cecil_senders.pcre - /etc/ssl/certs/02265526.0 - /etc/ssl/certs/106f3e4d.0 CHANGED FILES (first 10 of 17104): ~ /boot ~ /boot/grub ~ /boot/grub/grub.cfg ~ /boot/grub/grubenv ~ /boot/initrd.img ~ /boot/initrd.img.old ~ /boot/vmlinuz ~ /boot/vmlinuz.old ~ /etc ~ /etc/PackageKit AIDE SUMMARY HEADER: Start timestamp: 2026-07-23 07:37:50 -0600 (AIDE 0.19.2) AIDE found differences between database and filesystem!! Summary: Total number of entries: 191822
Blue Team — Operational Summary
The system ross-HP-Z230-SFF-Workstation generated an AIDE integrity report on 2026-07-23 between 07:37:50 and 07:41 MDT. The log captures a volumetric shift of 62,253 total file changes, consisting of 35,923 additions, 9,226 removals, and 17,104 modifications. Request volumes, IP distributions, and status code ratios are unobserved. Operational events include the addition of three distinct kernel versions (7.0.0-28-generic, 7.1.1-free-mps-experimental, 7.1.3-z230) and the removal of kernel 7.0.0-15-generic, alongside modifications to the /boot/grub configuration.
Red Team — Facts Only
System: ross-HP-Z230-SFF-Workstation Timestamp: 2026-07-23 07:41 MDT (Start: 07:37:50 -0600) Total Changes: 62253 Added Files: 35923 Removed Files: 9226 Changed Files: 17104 Critical Path Changes: 177 Error Path Changes: 60488 Warn Path Changes: 188 Other Changes: 1400 Requests/Unique IPs/Status Codes: Unobserved Exploit Strings/Task Executions: Unobserved
Purple Team — Pattern Analysis
The resource footprint is characterized by a massive filesystem mutation event, specifically concentrated within the /usr/bin directory via 60,488 error path changes and /boot via critical path updates. Compute load signals are indirect, manifesting as a large-scale update of system binaries and kernel images, while bandwidth density and caching optimizations are unobserved. The traffic concentration is absent; instead, the architectural alignment reflects a systemic software update or OS migration, evidenced by the simultaneous deployment of multiple kernel versions and corresponding AppArmor profiles for Brave and Tor. The baseline benchmarks for the next window are the 177 critical paths in /boot and the stability of the 60,488 binaries in /usr/bin.
Counter-Analyst
**Peer Review Critique** The current data suggests a massive system state change, but the "Critical" severity is likely a misinterpretation of a routine maintenance event. **Analytical Challenges:** 1. **Kernel & Package Update Noise:** The "Critical Paths" are almost exclusively kernel images and config files (v7.0.0 through 7.1.3). Given the 60k+ changes in `/usr/bin/` and the removal of old kernel versions, is it not more probable that this is a standard `apt upgrade` and subsequent `dist-upgrade` rather than a compromise? 2. **Volume vs.