Live Active security incident? Get immediate response
MITRE ATT&CK® Technique

T1019: System Firmware

The BIOS (Basic Input/Output System) and The Unified Extensible Firmware Interface (UEFI) or Extensible Firmware Interface (EFI) are examples of system firmware that operate as the software interface between the operating system and hardware of a computer. [1] [2] [3]

System firmware like BIOS and (U)EFI underly the functionality of a computer and may be modified by an adversary to perform or assist in malicious activity. Capabilities exist to overwrite the system firmware, which may give sophisticated adversaries a means to install malicious firmware updates as a means of persistence on a system that may be difficult to detect.

EnterpriseT1019TechniqueObject v1.1 Modified
Discuss defensive coverage Back to ATT&CK
Historical object

This ATT&CK object is revoked or deprecated in the current MITRE ATT&CK release.

It remains available for historical context and inbound links. Use current ATT&CK relationships and replacement guidance before basing detection or reporting work on this page.

Glexia's Take

Analyst summary pending validation

Glexia publishes ATT&CK takes only after source-hash and schema validation. Until then, use the official MITRE definition below and the defensive relationship context on this page.

Official MITRE ATT&CK definition

System Firmware

The BIOS (Basic Input/Output System) and The Unified Extensible Firmware Interface (UEFI) or Extensible Firmware Interface (EFI) are examples of system firmware that operate as the software interface between the operating system and hardware of a computer. [1] [2] [3]

System firmware like BIOS and (U)EFI underly the functionality of a computer and may be modified by an adversary to perform or assist in malicious activity. Capabilities exist to overwrite the system firmware, which may give sophisticated adversaries a means to install malicious firmware updates as a means of persistence on a system that may be difficult to detect.

View the same entry on attack.mitre.org (MITRE-hosted reference; in-page links above use the Glexia ATT&CK library.)

Glexia analysis

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.

ATT&CK relationship table

Related techniques

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.

1 rows
Domain ID Name Relationship / procedure
Enterprise T1542.001 System Firmware Sub-technique This object revoked by System Firmware.
Relationship explorer

All related ATT&CK context

revoked by · Technique T1542.001: System Firmware Enterprise
Change history

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 .

ATT&CK release
19.1
Object version
1.1
Created
Modified
Raw hash
4f4ea0ab1629fdb3...
Imported snapshots across ATT&CK releases (1)
Release Bundle imported Object version Modified Status Raw hash
19.1 1.1 Current bundle Revoked 4f4ea0ab1629…
Raw source

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.

Open mirrored raw JSON Open MITRE-hosted copy
Source references

External references and citations

MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.

  1. [1]
    Wikipedia BIOS

    Wikipedia. (n.d.). BIOS. Retrieved January 5, 2016.

    Open source URL
  2. [2]
    Wikipedia UEFI

    Wikipedia. (2017, July 10). Unified Extensible Firmware Interface. Retrieved July 11, 2017.

    Open source URL
  3. [3]
    About UEFI

    UEFI Forum. (n.d.). About UEFI Forum. Retrieved January 5, 2016.

    Open source URL
  4. [4]
    Github CHIPSEC

    Intel. (2017, March 18). CHIPSEC Platform Security Assessment Framework. Retrieved March 20, 2017.

    Open source URL
  5. [5]
    Intel HackingTeam UEFI Rootkit

    Intel Security. (2005, July 16). HackingTeam's UEFI Rootkit Details. Retrieved March 20, 2017.

    Open source URL
  6. [6]
    MITRE Copernicus

    Butterworth, J. (2013, July 30). Copernicus: Question Your Assumptions about BIOS Security. Retrieved December 11, 2015.

    Open source URL
  7. [7]
    MITRE Trustworthy Firmware Measurement

    Upham, K. (2014, March). Going Deep into the BIOS with MITRE Firmware Security Research. Retrieved January 5, 2016.

    Open source URL
  8. [8]
    McAfee CHIPSEC Blog

    Beek, C., Samani, R. (2017, March 8). CHIPSEC Support Against Vault 7 Disclosure Scanning. Retrieved March 13, 2017.

    Open source URL
  9. [9]
    capec CAPEC-532
    Open source URL
  10. [10]
    mitre-attack T1019
    Open source URL
Source and licensing

Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.

Official MITRE ATT&CK site Official STIX data repository MITRE ATT&CK terms of use