Detection rules › Kusto
New High Severity Vulnerability Detected Across Multiple Hosts
'This creates an incident when a new high severity vulnerability is detected across multilple hosts'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access |
Rule body
id: 6116dc19-475a-4148-84b2-efe89c073e27
name: New High Severity Vulnerability Detected Across Multiple Hosts
description: |
'This creates an incident when a new high severity vulnerability is detected across multilple hosts'
severity: Medium
status: Available
requiredDataConnectors:
- connectorId: QualysVMLogsCCPDefinition
dataTypes:
- QualysHostDetection
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- InitialAccess
relevantTechniques:
- T1190
query: |
let threshold = 10;
QualysHostDetection
| extend Status = tostring(Status), Vulnerability = tostring(QID), Severity = tostring(Severity)
| where Status =~ "New" and Severity == "5"
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), dcount(NetBios) by tostring(QID)
| where dcount_NetBios >= threshold
| extend timestamp = StartTime
version: 1.0.2
kind: Scheduled
Stages and Predicates
Parameters
let threshold = 10;
Stage 1: source
QualysHostDetection
Stage 2: extend
| extend Status = tostring(Status), Vulnerability = tostring(QID), Severity = tostring(Severity)
Stage 3: where
| where Status =~ "New" and Severity == "5"
Stage 4: summarize
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), dcount(NetBios) by tostring(QID)
Stage 5: where
| where dcount_NetBios >= threshold
Stage 6: extend
| extend timestamp = StartTime
Indicators
These rows show field, operator, and value matches.
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
EndTime | summarize |
StartTime | summarize |
timestamp | extend |