Component Firmware

T1542.002

Sub-technique of T1542 Pre-OS Boot.View on attack.mitre.org

About this technique

Adversaries may modify component firmware to persist on systems. Some adversaries may employ sophisticated means to compromise computer components and install malicious firmware that will execute adversary code outside of the operating system and main system firmware or BIOS. This technique may be similar to System Firmware but conducted upon other system components/devices that may not have the same capability or level of integrity checking.

Malicious component firmware could provide both a persistent level of access to systems despite potential typical failures to maintain access and hard disk re-images, as well as a way to evade host software-based defenses and integrity checks.

Detection rules0

Rules on DetectionCode tagged with T1542.002.

Sigma0

No Sigma rules are mapped to this technique yet.

Splunk0

No Splunk rules are mapped to this technique yet.

Groups1

Software1

Campaigns0

None recorded.

Procedure examples2

Groups1

Used byProcedure example
GroupEquation

Equation is known to have the capability to overwrite the firmware on hard drives from some manufacturers.

Software1

Used byProcedure example
MalwareCyclops Blink

Cyclops Blink has maintained persistence by patching legitimate device firmware when it is downloaded, including that of WatchGuard devices.

Data from MITRE ATT&CK® (Enterprise). ATT&CK® is a registered trademark of The MITRE Corporation.