DET0904: Detection of Firmware Modification
DET0904 is a detection strategy placeholder for identifying firmware modification in ICS environments. Its business significance is high because firmware s...
Analyst context for executives and security teams
DET0904 is a detection strategy placeholder for identifying firmware modification in ICS environments. Its business significance is high because firmware sits below normal operating software: unauthorized or unsafe changes can affect device trust, persistence, process control, and response functions. Even though the ATT&CK entry provides no detailed detection logic, the relationship to Modify Firmware (T1693) makes this a useful prompt for leaders to ask whether critical hardware has firmware integrity, change governance, and recoverability evidence.
Executive priority
Treat firmware modification as a resilience and assurance issue, not only a SOC alerting problem. Executives and risk owners should confirm which ICS assets depend on firmware, who can approve firmware changes, how those changes are evidenced for audit, and whether incident responders can distinguish authorized maintenance from suspicious modification. Prioritize coverage for devices whose compromise could impair process control or inhibit response functions, as reflected in the related ATT&CK technique context.
Technical view
Because the official detection strategy has no detection text, SOC and IR teams should validate the control and evidence chain around the related technique, Modify Firmware (T1693). Focus on whether authorized firmware baselines exist, whether firmware update events or maintenance records are available, and whether deviations can be investigated against approved change windows. Detection engineering should avoid assuming platform-specific coverage because the ATT&CK object does not specify platforms or tactics.
Likely telemetry
- Firmware inventory and approved version baselines for ICS devices
- Change management records for firmware updates and maintenance windows
- Device management or engineering workstation logs related to firmware transfer or update activity
- Asset configuration records showing firmware version changes over time
- Incident response evidence from device inspection, vendor tools, or maintenance documentation where available
Detection direction
- Validate that firmware version changes can be observed and tied to an approved change record.
- Tune investigations around unexpected firmware version drift, firmware changes outside maintenance windows, or changes lacking an accountable owner.
- Account for false positives from legitimate vendor maintenance, lifecycle upgrades, or emergency repairs.
- Identify blind spots where devices do not expose firmware version history, update logs, or reliable centralized telemetry.
- Use the relationship to T1693 to frame alert triage around potential persistence, impaired process control, or inhibited response function, without assuming those outcomes occurred.
Mitigation priorities
- Establish and maintain firmware baselines for critical ICS assets.
- Require documented authorization and evidence retention for firmware changes.
- Limit and review access paths used to perform firmware updates, especially from engineering or maintenance systems.
- Ensure incident response plans include firmware integrity validation and recovery procedures for affected devices.
- Prioritize compensating monitoring or manual verification for assets that cannot produce reliable firmware telemetry.
Analyst notes and limits
The supplied ATT&CK object is a detection strategy for ICS and is linked to T1693 Modify Firmware. The official object does not provide a description, detection logic, platforms, tactics, or aliases, so this take emphasizes defensible validation questions and evidence classes rather than specific analytic rules.
Coverage and risk cannot be determined from this ATT&CK object alone. Local asset inventory, device capabilities, vendor tooling, maintenance practices, network architecture, and available logs are required to determine whether firmware modification can be detected or investigated in a specific environment.
Detection of Firmware Modification
No official description is available in the imported ATT&CK source object.
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.
Techniques used
This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.
| Domain | ID | Name | Relationship / procedure |
|---|---|---|---|
| ICS | T1693 | Modify Firmware | This object detects Modify Firmware. |
All related ATT&CK context
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 | 713dfc285568… |
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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mitre-attack DET0904Open source URL
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