Detection rules › Sigma
Outgoing Logon with New Credentials
Detects logon events that specify new credentials
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Evasion | T1550 Use Alternate Authentication Material |
| Lateral Movement | T1550 Use Alternate Authentication Material |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 4624 | An account was successfully logged on. |
Stages and Predicates
Stage 1: selection
LogonType: 9
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 |
|---|---|---|
LogonType | eq |
|
Neighbors
Stricter alternatives (narrower than this rule)
The rules below may be useful if you find the current rule is too noisy / lacks specificity.
- Potential Access Token Abuse (adds 3 filters)
- Successful Overpass the Hash Attempt (adds 2 filters)
- DiagTrackEoP Default Login Username (adds 1 filter)
Broader alternatives (more inclusive than this rule)
These rules match a superset of what this rule catches. They cover the same events plus more. Use them if you want wider coverage and can absorb more false positives.
- Potential Account Takeover - Mixed Logon Types (drops 1 filter this rule applies)
- Potential Account Takeover - Logon from New Source IP (drops 1 filter this rule applies)