Detection Strategy for Overwritten Process Arguments Masquerading, Detection Strategy DET0164
Excerpt
AN0466
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.
Log Sources
Data Component Name Channel
Process Metadata
(DC0034)
auditd:SYSCALL
execve, prctl, or ptrace activity affecting process memory
or command-line arguments
Process Modification
(DC0020)
ebpf:tracepoints Runtime memory overwrite of argv[] memory region
Mutable Eleme…
The opening of the report, shown for reference. The full report, with its figures and indicators, is published by MITRE ATT&CK on attack.mitre.org.
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