Detection rules › Kusto Query Language
Certified Pre-Owned - TGTs requested with certificate authentication
This query identifies someone using machine certificates to request Kerberos Ticket Granting Tickets (TGTs).
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Evasion | T1036 Masquerading |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 4768 | A Kerberos authentication ticket (TGT) was requested. |
Stages and Predicates
Stage 1: source
SecurityEvent
Stage 2: where
macro "(TimeGenerated >= ago(timeframe))"
Stage 3: where
EventID eq "4768"
Stage 4: project
Stage 5: mv-expand
Stage 6: where
not
CIN is_null
Stage 7: parse
Exclusions
Top-level NOT(...) conjuncts — predicates this rule actively suppresses.
| Stage | Field | Kind | Excluded values |
|---|---|---|---|
| 1 | CIN | is_null |
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
EventID | eq |
|