Techniques › T1621 › AN0452
AN0452 Analytic 0452
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Monitor PAM and syslog entries for unusual frequency of login attempts that trigger MFA prompts, particularly when MFA challenges do not match expected user behavior.</p>
- Detects
- T1621 Multi-Factor Authentication Request Generation
- Part of
- DET0160 Detection Strategy for Multi-Factor Authentication Request Generation (T1621)
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:AUTH | pam_unix or pam_google_authenticator invoked repeatedly within short interval | DC0002 User Account Authentication |
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 |
|---|---|
AuthRetryThreshold | Number of retries per user allowed before detection is triggered |