Techniques › T1558.005 › AN0069
AN0069 Analytic 0069
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects unauthorized access, copying, or modification of Kerberos ccache files (krb5cc_%UID% or krb5.ccache) in /tmp or custom paths defined by KRB5CCNAME. Correlates file access with suspicious processes (e.g., credential dumping tools) and subsequent anomalous Kerberos authentication requests from non-standard processes.</p>
- Detects
- T1558.005 Ccache Files
- Part of
- DET0024 Detect Kerberos Ccache File Theft or Abuse (T1558.005)
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: File access attempt on /tmp/krb5cc_* or /tmp/krb5.ccache | DC0055 File Access |
| auditd:SYSCALL | execve: Execution of klist, kinit, or tools interacting with ccache outside normal user context | 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 |
|---|---|
CcachePathBaseline | Expected directories or environment variable (KRB5CCNAME) paths for ccache files in the environment. |
AllowedProcesses | Baseline list of processes legitimately interacting with ccache (e.g., klist, kinit). |
TimeWindow | Correlation window for linking file access, process execution, and Kerberos requests. |