Techniques › T1033 › AN0255
AN0255 Analytic 0255
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Adversary runs commands like
whoami, id, w, or cat /etc/passwd from non-interactive or scripting contexts to enumerate system user details.</p>- Detects
- T1033 System Owner/User Discovery
- Part of
- DET0093 Behavioral Detection of User Discovery via Local and Remote Enumeration
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 source | Channel | Data component |
|---|---|---|
| auditd:SYSCALL | execve | DC0032 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.
| Field | Description |
|---|---|
CommandLineRegex | Tune detection based on argument presence (e.g., `cat /etc/passwd` vs. `cat` alone) |
ShellContext | Identify if command issued via cron, systemd, or reverse shell |
AccessFrequency | Define how often user/account commands are expected on endpoint |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2023-22518 | Atlassian Confluence Data Center and Server | Mapped |
| CVE-2024-4577 | PHP Group PHP | Mapped |