Techniques › T1564.011 › AN0181
AN0181 Analytic 0181
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Execution of processes using nohup or shell redirection to ignore SIGHUP and continue running after session termination. Defender perspective: correlation between commands including nohup, disowned jobs, or
& suffix with continued process execution after parent terminal exit.</p>- Detects
- T1564.011 Ignore Process Interrupts
- Part of
- DET0067 Detection Strategy for Ignore Process Interrupts
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 call including 'nohup' or trailing '&' | DC0064 Command Execution |
| auditd:SYSCALL | process persists beyond parent shell termination | 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 |
|---|---|
IgnoredSignals | Specific signals to monitor (e.g., SIGHUP, SIGINT) depending on environment baseline. |
ProcessLifetimeThreshold | Duration a process continues running after session logout, adjustable to reduce noise from benign long-lived jobs. |