Techniques › T1036.011 › AN0466
AN0466 Analytic 0466
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects adversary behavior where the command-line arguments of a running process are overwritten in memory to spoof the process name, typically replacing it with a benign or misleading string. The detection correlates unexpected null byte sequences, discrepancies between
/proc/<pid>/cmdline and process ancestry, and suspicious memory writes shortly after process start.</p>- Detects
- T1036.011 Overwrite Process Arguments
- Part of
- DET0164 Detection Strategy for Overwritten Process Arguments Masquerading
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, prctl, or ptrace activity affecting process memory or command-line arguments | DC0034 Process Metadata |
| ebpf:tracepoints | Runtime memory overwrite of argv[] memory region | DC0020 Process Modification |
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 |
|---|---|
TimeWindow | Time threshold after process creation during which argv memory manipulation is expected to be rare; anomalies occurring outside this window may be more suspicious. |
AllowedArgvMismatchPatterns | List of known legitimate processes where argv[0] mismatch is expected due to application logic or packaging quirks. |
ParentExecutableTrustList | Trusted parent binaries allowed to spawn processes with altered command-line names. |