Alerts
Rule results for failed logons, lockouts, privileged and policy changes, brute force, spraying and probing.
Account lifecycle change
Account deleted: former.staff01 by neri.vale on DC-EX-01 at 2026-08-22 16:05:00 UTC.
Account former.staff01 · Source 10.24.2.25
Password changed
dara.vale changed their password on DC-EX-02 at 2026-08-21 17:56:00 UTC.
Account dara.vale · Source 10.24.3.145
Privileged account logon
1 successful logon (4624) on 2026-08-21 by dara.vale, member of Server Operators.
Account dara.vale
Password changed
veya.wren changed their password on DC-EX-02 at 2026-08-20 14:07:00 UTC.
Account veya.wren · Source 10.24.3.152
Account lifecycle change
Account changed: anika.wren by elin.briar on DC-EX-02 at 2026-08-19 11:18:00 UTC.
Account anika.wren · Source 10.24.4.157
Account lifecycle change
Account enabled: kian.quill by neri.vale on DC-EX-01 at 2026-08-19 09:59:00 UTC.
Account kian.quill · Source 10.24.1.127
Account lifecycle change
Account created: kian.quill by neri.vale on DC-EX-01 at 2026-08-19 09:13:00 UTC.
Account kian.quill · Source 10.24.2.74
Privileged account logon
1 successful logon (4624) on 2026-08-14 by dara.vale, member of Server Operators.
Account dara.vale
Account lifecycle change
Account changed: elin.vale by elin.briar on DC-EX-01 at 2026-08-13 11:12:00 UTC.
Account elin.vale · Source 10.24.1.106
Privileged account logon
1 successful logon (4624) on 2026-08-12 by dara.vale, member of Server Operators.
Account dara.vale
Directory object changed
Directory object modified by tavi.vale on DC-EX-01 at 2026-08-12 14:48:00 UTC.
Source 10.24.1.111
Password changed
lio.wren changed their password on DC-EX-02 at 2026-08-12 12:49:00 UTC.
Account lio.wren · Source 10.24.3.61
Account lifecycle change
Account changed: tavi.moss by elin.briar on DC-EX-01 at 2026-08-10 15:48:00 UTC.
Account tavi.moss · Source 10.24.1.13
Password changed
mira.briar changed their password on DC-EX-01 at 2026-08-10 13:26:00 UTC.
Account mira.briar · Source 10.24.4.207
Password changed
elin.vale changed their password on DC-EX-02 at 2026-08-07 12:38:00 UTC.
Account elin.vale · Source 10.24.1.133
Account lifecycle change
Account changed: mira.briar by elin.briar on DC-EX-01 at 2026-08-07 12:14:00 UTC.
Account mira.briar · Source 10.24.4.37
Account lifecycle change
Account changed: orin.moss by elin.briar on DC-EX-01 at 2026-08-06 15:47:00 UTC.
Account orin.moss · Source 10.24.4.68
Privileged account logon
1 successful logon (4624) on 2026-08-06 by orin.quill, member of Administrators, Domain Admins.
Account orin.quill
Password changed
orin.quill changed their password on DC-EX-02 at 2026-08-04 13:05:00 UTC.
Account orin.quill · Source 10.24.1.149
Account lifecycle change
Account changed: anika.vale by elin.briar on DC-EX-02 at 2026-07-31 11:12:00 UTC.
Account anika.vale · Source 10.24.1.151
Rule coverage
Rules evaluated by the scheduled cli/evaluate-alerts.php job over the collected events · pattern thresholds: brute force 10, spraying 10, probing 5 per 10 minutes
| Rule | Severity | Trigger | Alerts raised |
|---|---|---|---|
| Brute force | Critical | At least 10 failed logons (4625) for one account within 10 minutes | 2 |
| Password spraying | Critical | One source fails logons for at least 10 distinct existing accounts within 10 minutes | 1 |
| Account probing | Critical | One source tries at least 5 non-existent accounts (status 0xC0000064) within 10 minutes | 1 |
| Security log cleared | Critical | Any 1102 event | 1 |
| Audit policy changed | Critical | Any 4719 event | 1 |
| Member added to privileged group | Critical | 4728 / 4732 / 4756 for a privileged group | 2 |
| Member removed from privileged group | Warning | 4729 / 4733 / 4757 for a privileged group | 1 |
| Account locked out | Warning | Any 4740 event | 24 |
| Password reset by another account | Warning | Any 4724 event | 17 |
| Group Policy changed | Warning | 5136 / 5137 on a Group Policy object | 1 |
| Directory object changed | Info | 5136 / 5137 on other directory objects | 9 |
| Account lifecycle change | Info | 4720 / 4722 / 4725 / 4726 / 4738 | 44 |
| Password changed | Info | Any 4723 event | 27 |
| Privileged account logon | Info | 4624 by a member of a privileged group (one alert per account per day) | 20 |