Techniques › T1110.003 › AN1342
AN1342 Analytic 1342
Office Suite · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Failed authentication attempts across user mailboxes using identical or common passwords (e.g., OWA brute attempts)</p>
- Detects
- T1110.003 Password Spraying
- Part of
- DET0487 Distributed Password Spraying via Authentication Failures Across Multiple Accounts
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 |
|---|---|---|
| m365:exchange | FailedLogin | 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 |
|---|---|
MailboxAccessAttempts | Threshold on mailbox login failures by same IP |
EmailPatternAnalysis | Match target usernames to common spray dictionaries |