Techniques › T1531 › AN0335
AN0335 Analytic 0335
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Password changes or account deletions via 'passwd', 'userdel', or 'chage' preceded by interactive shell or remote command execution from non-privileged accounts.</p>
- Detects
- T1531 Account Access Removal
- Part of
- DET0120 Account Access Removal via Multi-Platform Audit Correlation
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 | SYSCALL record where exe contains passwd/userdel/chage and auid != root | DC0032 Process Creation |
| NSM:Connections | Accepted password or publickey for user from remote IP | DC0002 User Account Authentication |
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 |
|---|---|
ExecPath | Binary path for passwd or userdel, which may vary by distro |
NonRootUIDThreshold | Alert only if auid != root or expected service account |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2023-34362 | Progress MOVEit Transfer | Mapped |