Techniques › T1553.004 › AN0154
AN0154 Analytic 0154
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detection of unexpected additions or modifications to system-wide certificate stores or execution of commands adding certificates to trusted stores.</p>
- Detects
- T1553.004 Install Root Certificate
- Part of
- DET0056 Detection Strategy for Subvert Trust Controls via Install Root Certificate.
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 | open, write: File modifications under /etc/ssl/certs, /usr/local/share/ca-certificates, or /etc/pki/ca-trust/source/anchors | DC0061 File Modification |
| auditd:EXECVE | execve: Execution of update-ca-certificates or trust anchor modification commands | DC0064 Command Execution |
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 |
|---|---|
CertificatePaths | Paths monitored for certificate modifications; can be tuned depending on Linux distribution. |
AdminAccounts | Expected user accounts with privileges to install root certificates; anomalies outside this context are suspicious. |