AN0826: Analytic 0826
Detects unauthorized firmware or configuration changes enabling adversary-in-the-middle positioning (e.g., route injection, DNS spoofing, SSL downgrade). Behavioral analytics focus on sudden changes to routing tables or image file integrity failures.
Analyst context for executives and security teams
Analytic 0826 matters because unauthorized firmware or configuration changes on network devices can create adversary-in-the-middle conditions, such as route injection, DNS spoofing, or SSL downgrade. For leaders, the practical question is whether the organization can notice material changes to routing behavior or device image integrity quickly enough to protect business communications and incident response decision-making.
Executive priority
Treat this as a network resilience and trust-control validation issue. Network devices often sit outside standard endpoint monitoring, so gaps in firmware integrity checks, configuration governance, and route-change visibility can weaken SOC confidence during an incident. Executives should ask whether critical network infrastructure has monitored baselines, accountable change control, and evidence suitable for audit or post-incident review.
Technical view
For Network Devices, validate whether monitoring can identify sudden routing table changes and image file integrity failures, as described by the analytic. SOC and IR teams should compare observed device state against approved configuration and firmware baselines, then correlate unexpected route, DNS, or TLS-related behavior with authorized maintenance windows and change tickets. No ATT&CK tactic or relationship context was supplied, so this should be handled as a detection analytic focused on unauthorized network-device changes rather than a broader campaign or technique mapping.
Likely telemetry
- Network device configuration change logs
- Routing table snapshots or routing protocol change events
- Firmware or image file integrity check results
- Device management and administrative access logs
- DNS behavior or resolver configuration changes where available
Detection direction
- Validate that routing table changes are collected from critical network devices and compared against an approved baseline.
- Validate that firmware or image file integrity checks are performed and that failures generate actionable alerts.
- Tune alerts against approved maintenance windows to reduce false positives from legitimate routing or firmware changes.
- Correlate unexpected route changes, DNS changes, or SSL/TLS downgrade indicators with device administration activity.
- Identify blind spots where network devices are not sending logs, are not covered by integrity monitoring, or lack retained configuration history.
Mitigation priorities
- Establish approved firmware and configuration baselines for critical network devices.
- Enforce formal change control for routing, DNS, firmware, and security-relevant network-device configuration changes.
- Prioritize integrity monitoring and alerting for devices supporting critical business services.
- Restrict and monitor administrative access to network devices.
- Ensure SOC and incident response playbooks include validation of routing tables, firmware integrity, and configuration state during suspected network interception events.
Analyst notes and limits
The supplied ATT&CK object is a detection analytic, not a full technique description. The strongest supported defensive focus is unauthorized firmware or configuration change detection on Network Devices, especially sudden routing table changes and image integrity failures. Local network architecture, device logging capability, and change-management maturity will determine how actionable this analytic is.
Official detection text was not provided, tactics were not specified, and no relationship context was supplied. This take does not infer active exploitation, attribution, impact, or existing customer coverage. Validation requires local telemetry, baselines, and authorized change records.
Analytic 0826
Detects unauthorized firmware or configuration changes enabling adversary-in-the-middle positioning (e.g., route injection, DNS spoofing, SSL downgrade). Behavioral analytics focus on sudden changes to routing tables or image file integrity failures.
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
All related ATT&CK context
No relationships are available in the current normalized data for this object.
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | 29b635851385… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
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[1]
mitre-attack AN0826Open source URL
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