kevmap

TechniquesT1564.002 › AN1002

AN1002 Analytic 1002

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

<p>Use of gsettings or direct Display Manager modifications to hide users from greeter login screen. Defender view: anomalous command execution modifying org.gnome.login-screen or other greeter configurations.</p>
Detects
T1564.002 Hidden Users
Part of
DET0353 Detection Strategy for Hidden User Accounts

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:EXECVEExecution of gsettings set org.gnome.login-screen disable-user-list trueDC0064 Command Execution
auditd:FILEModification of Display Manager configuration files (/etc/gdm3/*, /etc/lightdm/*)DC0061 File Modification

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
DisplayManagerScopeSpecify which Display Managers are in use to minimize noise.