kevmap

TechniquesT1027.003 › AN0332

AN0332 Analytic 0332

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

<p>Detects access to media files followed by execution of scripts (bash, Python, etc.) referencing those same files, or outbound traffic triggered shortly after file read. Correlates unusual use of tools like steghide, exiftool, or image libraries.</p>
Detects
T1027.003 Steganography
Part of
DET0119 Detection Strategy for Steganographic Abuse in File & Script Execution

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:SYSCALLopenDC0055 File Access
auditd:SYSCALLexecveDC0032 Process Creation
auditd:SYSCALLconnectDC0082 Network Connection 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
MonitoredToolsListDefine the list of steganographic or image-parsing tools to alert on (e.g., `steghide`, `imagemagick`)
ScriptInterpreterMatchTune to detect script engines accessing media files (e.g., `python script.py image.png`)