kevmap

TechniquesT1052.001 › AN0617

AN0617 Analytic 0617

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

<p>Detects USB block device mount followed by file access in sensitive directories or high-volume copy operations by user-controlled processes.</p>
Detects
T1052.001 Exfiltration over USB
Part of
DET0220 Detection of USB-Based Data Exfiltration

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:SYSCALLopen, readDC0055 File Access
auditd:SYSCALLKernel Device Events - USB Block DevicesDC0042 Drive Creation

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
MountPathLook for /media/, /mnt/, /run/media/ paths associated with removable storage.
CopyCommandSignatureDetect rsync, cp, tar, zip activity writing to USB mount point.
AccessRateThresholdDefine abnormal access patterns (e.g., >100 files in <5 min).