Techniques › T1027.015 › AN0783
AN0783 Analytic 0783
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects sequential command-line compression utilities (e.g., gzip, tar, zip, 7z) followed by execution of unpacked files, especially in temp directories or under non-standard locations like /dev/shm or /tmp with ELF binaries.</p>
- Detects
- T1027.015 Compression
- Part of
- DET0281 Detection Strategy for Compressed Payload Creation and Execution
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 | DC0032 Process Creation |
| auditd:SYSCALL | write | DC0039 File Creation |
| auditd:SYSCALL | openat | DC0055 File Access |
| auditd:SYSCALL | chmod | DC0061 File 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 |
|---|---|
PathRegex | Flag compressed archives extracted to /tmp, /dev/shm, or user’s home dir |
CompressionToolPatterns | gzip, tar, bzip2, xz, 7z – tune to suppress admin packaging workflows |
ExecutionAfterUnpackWindow | How soon a new file is executed after it’s unpacked |