kevmap

TechniquesT1195.003 › AN1036

AN1036 Analytic 1036

Linux · attack.mitre.org · ATT&CK Enterprise v19.2

<p>Monitors for hardware or firmware tampering by correlating system boot logs, hardware inventory changes, and secure boot/firmware verification failures. Behavioral chain: (1) UEFI/BIOS version drift; (2) secure boot disabled or signature verification errors; (3) unexpected modules or hardware devices enumerated at boot; (4) new device firmware images loaded from non-approved sources.</p>
Detects
T1195.003 Compromise Hardware Supply Chain
Part of
DET0368 Hardware Supply Chain Compromise Detection via Host Status & Boot Integrity Checks

Log sources and channels

Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.

Log sourceChannelData component
auditd:SYSCALLfirmware_update, kexec_loadDC0018 Host Status
fwupd:logsFirmware updates applied or failedDC0059 File Metadata

Mutable elements

Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.

FieldDescription
ApprovedFirmwareHashesList of SHA256/SHA512 firmware hashes allowed.
AllowedDeviceIDsKnown hardware component IDs per host baseline.