kevmap

TechniquesT1554 › AN0949

AN0949 Analytic 0949

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

<p>Monitors for unexpected modifications of system or application binaries, particularly signed executables. Correlates file write events with subsequent unsigned or anomalously signed process execution, and checks for tampered binaries outside normal patch cycles.</p>
Detects
T1554 Compromise Host Software Binary
Part of
DET0336 Detect Compromise of Host Software Binaries

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
WinEventLog:SysmonEventCode=11DC0039 File Creation
WinEventLog:SysmonEventCode=2DC0061 File Modification
WinEventLog:SecurityEventCode=4688DC0032 Process 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
MonitoredPathsDefine critical directories (e.g., C:\Windows\System32, Program Files) for binary integrity checks
SignatureValidationAdjust enforcement level of digital signature verification based on enterprise risk appetite
TimeWindowCorrelate file modification with subsequent process execution within a defined time window