Securityalert Suspicious Request To Kubernetes Api
KQL detection rule by ep3p · MIT
No description provided
SecurityAlert
| where AlertName has "Suspicious request to Kubernetes API" and ProviderName == "Azure Security Center"
| summarize arg_min(TimeGenerated, *) by SystemAlertId
| extend ExtendedProperties = todynamic(ExtendedProperties)
| extend
APIRequest = tostring(ExtendedProperties["API Request"]),
ContainerID = tostring(ExtendedProperties["Container ID"]),
ImageName = tostring(ExtendedProperties["Image Name"]),
UserName = tostring(ExtendedProperties["User Name"]),
ResourceType = tostring(ExtendedProperties["resourceType"])
// Clean Entities
| extend Entities = replace_regex(Entities, @'(\,\"\w+\"\:\{\"\$ref\"\:\"\d+\"\}|\"\w+\"\:\{\"\$ref\"\:\"\d+\"\}\,|\,\{\"\$ref\"\:\"\d+\"\})|\"\$id\"\:\"\d+\"\,', '')
| summarize
TimeGenerated = min(TimeGenerated),
StartTime = min(StartTime),
EndTime = max(EndTime),
ContainerIDs = make_set(ContainerID, 250),
AlertLinks = make_set(AlertLink, 250),
Entities = make_set(todynamic(Entities)),
take_any(RemediationSteps, Tactics, Techniques)
by AlertName, AlertSeverity, Description, ResourceId = tolower(ResourceId), APIRequest, ImageName, UserName, ResourceType
| project
TimeGenerated,
AlertName,
AlertSeverity,
Description,
RemediationSteps,
ResourceId,
ResourceType,
StartTime,
EndTime,
ImageName,
UserName,
APIRequest,
ContainerIDs,
AlertLinks,
Tactics,
Techniques,
Entities