Techniques › T1056.003 › AN1320
AN1320 Analytic 1320
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects unauthorized modifications to login-facing web server files (e.g., index.php, login.js) typically tied to VPN, SSO, or intranet portals. Correlates suspicious file changes with remote access artifacts or web shell behavior.</p>
- Detects
- T1056.003 Web Portal Capture
- Part of
- DET0480 Detection of Credential Harvesting via Web Portal Modification
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 | write | DC0061 File Modification |
| NSM:Flow | HTTP Request Logging | DC0085 Network Traffic Content |
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 |
|---|---|
MonitoredFilePaths | Target login-related files (e.g., /var/www/html/login.php) for integrity monitoring |
TimeWindow | Tune detection to correlate file edits and web access within a short duration |